Position Or Course Prediction Patents (Class 235/412)
  • Patent number: 10401123
    Abstract: The invention relates to a method and system for the terminal-phase guiding of an interceptor missile towards a mobile aerial target. According to the invention, measurements delivered by the terminal guiding sensor are used to deduce a set of components of the interceptor missile-target dynamic, by means of Bayesian estimation, and the future of this dynamic is digitally integrated on line.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: September 3, 2019
    Assignee: MBDA FRANCE
    Inventor: François De Picciotto
  • Patent number: 10209035
    Abstract: New targeting systems, hardware and techniques are provided, in which an auxiliary probe is first launched and deployed at a target. Extremely precise, deliberate targeting for future projectiles, weapons or non-lethal measures is then made relative to the position and orientation of the probe. In one embodiment, a system enables a sniper to plan measures with extreme precision within an environment, evaluate their effectiveness, and execute them extremely rapidly once satisfied. A user may create, set, adjust and execute Impact Point indicators, corresponding with projected points of impact of a projectile on a target subject within a target environment. The system may counteract and otherwise adjust for certain ballistic and environmental factors in a firing mechanism to maintain such an Impact Point fire ready, in real time. Yet the system is unobtrusive, allowing the user to engage ordinary targeting activity.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 19, 2019
    Inventor: Christopher V. Beckman
  • Patent number: 10097764
    Abstract: A firearm aiming system comprising an imaging system comprising an imaging sensor and an image processor; and a user display, wherein the imaging system is adapted to detect a potential target on the user display based on target features. In some embodiments the system includes a firing processor with an epsilon logic module for calculating a target aim-point/area used by the firing processor to make a firing decision.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: October 9, 2018
    Assignee: SMART SHOOTER LTD.
    Inventor: Avshalom Ehrlich
  • Patent number: 9879990
    Abstract: Position reference system and method for positioning and tracking one or more objects which in addition to range and azimuth also provides the elevation angle of the target relative to the instrument axes of the sensor platform. The system and method is based on a near IR laser radar transceiver and one or more active or passive retroreflectors placed on the objects to be positioned. The present invention further includes an internal beam stabilization mechanism protected from the environment and utilize a cylindrical window which is transparent for the near IR laser radiation, but absorbs all visible and UV radiation and thus protects the optical parts from ambient solar radiation. In addition, the cylindrical window protects all internal mechanical parts, notably the rotating and moving parts, from a corrosive and freezing/icing environment.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: January 30, 2018
    Assignee: Kongsberg Seatex AS
    Inventors: John O. Klepsvik, Harald Fossum Rosshaug, Gard Flemming Ueland
  • Patent number: 9250037
    Abstract: A method determining artillery fire corrections toward a fixed target using a fixed observation system is oriented and equipped with a device measuring orientation of line of sight, a laser rangefinder, a positioning device, and a display screen with fixed crosshair, displaying and moving another crosshair. The method includes: orienting the observation system to display the central crosshair on the target image and calculating target geographical coordinates using distance provided by the rangefinder. If, after firing, the impact and target do not coincide, the method includes, if the orientation is fixed: displaying a second crosshair on the impact image and measuring offset between the two crosshairs, displaying a third crosshair symmetrical to the second crosshair; and orienting the optronic system to position the third crosshair on the target image, the first crosshair coinciding with the impact point image, and actuating the rangefinder to obtain distance between the system and impact.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: February 2, 2016
    Assignee: THALES
    Inventors: Patrick Seugnet, Stéphane Godio
  • Patent number: 9038901
    Abstract: An optical device includes a housing containing a plurality of lenses. At least one of those lenses includes a reticle. An optical device and a processor are also located in the housing. A wind speed sensor is mounted to the housing and configured to send a wind speed signal corresponding to a wind speed to the processor. The processor calculates a wind speed based at least in part on the wind speed signal, and wherein the processor sends an output signal corresponding to the calculated wind speed to the output device.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: May 26, 2015
    Assignee: Burris Company, Inc.
    Inventors: Douglas F. Paterson, Steven A. Bennetts
  • Patent number: 8963765
    Abstract: A method for tracking an object using radar includes detecting a wideband radio frequency (“RF”) energy at a first radar sensor tracking the object and determining in a computer process if a booster is propelling the object based on the wideband RF energy. The object is tracked in a computer process based on a ballistic trajectory if the booster is not propelling the object, and the object is tracked in a computer process based on a non-ballistic trajectory if the booster is propelling the object.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: February 24, 2015
    Assignee: Lockheed Martin Corporation
    Inventor: Richard N. Pedersen
  • Patent number: 8963766
    Abstract: According to one embodiment, a target tracking apparatus calculates N-dimensional predicted values from a respective stored (N+1)-dimensional tracks for each of the targets, determines whether or not the N-dimensional predicted value for each of the targets is correlated with the received N-dimensional angle observed value for the target, if the N-dimensional predicted value is not correlated, generates a new (N+1)-dimensional track for the target based on the N-dimensional track corresponding to the N-dimensional angle observed value and if the N-dimensional predicted value is correlated, updates and stores the (N+1)-dimensional track using the N-dimensional angle observed value.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: February 24, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hidetoshi Furukawa
  • Patent number: 8788120
    Abstract: System and methods for managing targets of a vehicle is provided. In some aspects, a system may include a boundary check module configured to receive boundary information from a flight safety system. The boundary information comprises a selected termination boundary of a plurality of termination boundaries confining navigation of the vehicle. Each of the plurality of termination boundaries is associated with a target of a plurality of targets of the vehicle. The system may further include a target modification module configured to select the target associated with the selected termination boundary, and a target guidance module configured to provide the selected target to a guidance and control system of the vehicle.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: July 22, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: Andrew P. Imbrie, Steven A. Dunn, Andrew A. Myers
  • Patent number: 8740071
    Abstract: A method and system for attenuating a shockwave propagating through a first medium. The method and system may include providing a sensor for detecting a shockwave-producing event, which may include detecting an explosive device or detecting an explosion from an explosive device, determining a direction and distance of the shockwave relative to a defended target, calculating with a computer control a firing plan, and interposing a second medium between the shockwave and a protected asset if cost effective to do so. The second medium may be different from the first medium and the shockwave may be reflected, refracted and dispersed, or absorbed as it passes through the second medium prior to reaching the protected asset, and thus may be attenuated in force as it reaches the protected asset.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: June 3, 2014
    Assignee: The Boeing Company
    Inventors: Christopher Higgs, Brian J. Tillotson
  • Patent number: 8579194
    Abstract: The invention relates to a method for determining a favourable moment for triggering the firing of a weapon on a moving target. According to said method, firing commands and expected impact points (P1-P3) of a projectile and the target (2) are calculated with the aid of an algorithm, without actually triggering a firing burst. The target (2) is selected, the algorithm is activated and hypothetical data is determined. The process is aided by a graphical display (4) of the data. In the preferred embodiments, additional information is taken into account and/or is visualised for a user (5).
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: November 12, 2013
    Assignee: Rheinmetall Air Defence AG
    Inventors: André Boss, Karel Vit
  • Patent number: 8561898
    Abstract: An example method includes receiving output voltage data from an array of at least four thermopiles placed around the circumference of a projectile such that for any rotation of the projectile during flight thereof, at least a pair of the thermopile having upwardly-facing fields of view referenced to the earth-fixed coordinate system. The method includes determining the pair of upwardly-facing thermopiles based on the output voltage data from the array, with the respective pair of thermopiles including a thermopile p and next adjacent thermopile p+1. The method includes determining a ratio of the output voltage data from thermopiles p and p+1, and applying the ratio to a function associating, for any pair of thermopiles n and n+1, a ratio of output voltage data from thermopiles n and n+1, and a roll angle ?n of thermopile n referenced to the earth-fixed coordinate system.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 22, 2013
    Assignee: Simmonds Precision Products, Inc.
    Inventor: Scott Robert Durkee
  • Patent number: 8520895
    Abstract: A system and method calculate a range and velocity of an object in image data. The range calculation includes detecting a contour of the object from the image data, forming a template from the image data based on the contour; and calculating a range to the object using pixel resolution and dimension statistics of the object. A three-dimensional velocity of the object is determined by calculating a radial component and an angular component of the velocity. The radial velocity component is calculated by determining the range of the object in two or more image frames, determining a time differential between the two or more image frames, and calculating the radial velocity as a function of the range of the object in the two or more image frames and the time differential between the two or more image frames. The angular component is calculated using spatial-temporal derivatives as a function of a motion constraint equation.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: August 27, 2013
    Assignee: Honeywell International Inc.
    Inventors: Kwong Wing Au, Saad J. Bedros
  • Patent number: 8464949
    Abstract: A method including detecting a threat incoming to a vehicle, the vehicle having a plurality of countermeasures including a primary armament and an active protection system, communicating the detected threat to a controller, activating, with the controller, a first sensor in response to the detecting, the first sensor tracking the incoming threat and generating tracking data, routing, with the controller, the tracking data to a plurality of fire control processors, each of the plurality of fire control processors being associated with a respective one of the plurality of countermeasures, and the plurality of fire control processors simultaneously computing respective firing solutions using the tracking data, and determining, with the controller, a preferred countermeasure out of the plurality of countermeasures with which to counter the incoming threat.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: June 18, 2013
    Assignee: Raytheon Company
    Inventors: Mark A. Namey, James F. Kviatkofsky, James R. Toplicar
  • Patent number: 8408460
    Abstract: A ranging system for use with a projectile launching device is provided. The ranging system includes an alignment marker visible with an optical sight device. The position of the alignment marker is adjusted based at least on a determined range to a target.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: April 2, 2013
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: John Felix Schneider, Christopher Allen Brown
  • Patent number: 8286872
    Abstract: A remote weapon system (10) includes: a fire control unit (12); and a mechanical support (14) to which a weapon (18) capable of firing airburst ammunition is mountable, the mechanical support being adapted to move the weapon in azimuth and elevation directions. The fire control unit is adapted to receive input parameters including at least one area parameter related to a geographical area to be covered by the airburst ammunition from the weapon. Further, the fire control unit is configured to automatically calculate a number of shots of the weapon as well as azimuth and elevation directions of the mechanical support for each shot based on the input parameters such that substantially the entire geographical area is covered by the airburst ammunition when the weapon is fired.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: October 16, 2012
    Assignee: Kongsberg Defence & Aerospace AS
    Inventors: Kjell M. Laupstad, Rune Werner, Eirik Malterud, Leif O. Haugen
  • Patent number: 8251288
    Abstract: A network-centric targeting system includes a prepare module to plan for targeting engagements and to identify a target; a sense module to locate targets of opportunity and targets generated by the prepare module to form targeting information; a refine module to enhance the targeting information from the sense module; a track module to maintain a location of a target, a state of the target and target activity, the track module being coupled to the refine module; a target module to select effects and to coordinate delivery of selected effects to the target, the target module being coupled to the track module, the refine module and the sense module; a deliver module to deliver effects to the target, the deliver module being coupled to the track module, the refine module, the target module and the sense module; and an assess module to assess effectiveness of the delivered effects on the target.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: August 28, 2012
    Assignee: Raytheon Company
    Inventors: Michael J. Woitalla, Sean M. Beary
  • Patent number: 8177133
    Abstract: A method of displaying target engageability information to a pilot of an aircraft in flight including calculating according to instantaneous aircraft position and motion relative to at least one target to be engaged and to characteristics of a weapon, earliest and latest weapon release points between which the weapon is presently capable of engaging a target of interest and generating display symbols indicating a weapon launch acceptable region and the instantaneous position of the aircraft relative thereto. A system for displaying the information and a target engageability display symbology are also described.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: May 15, 2012
    Assignee: BAE Systems PLC
    Inventor: Matthew James Howard
  • Publication number: 20120055990
    Abstract: The invention relates to a method of applying soft-kill deployment to mislead an incoming missile directed to a mother platform. The method comprises the step of predicting a number of miss distances associated with corresponding particular decoy launch parameter sets. Further, the method comprises the step of selecting a decoy parameter set having an optimal predicted miss distance. The method also comprises the step of transmitting the selected decoy parameter set to a launch unit for launching the decoy. Here, the predicting step includes the use of an adjoint algorithm.
    Type: Application
    Filed: December 30, 2009
    Publication date: March 8, 2012
    Applicant: Nederlandse Organisatie voor toegepast- -natuurwetenschappelijk Onderzoek TNO
    Inventors: Martin Weiss, Franciscus Aloysius Maria Dam
  • Publication number: 20110204145
    Abstract: A projector of multiple skewed light planes or sheets is located adjacent a vehicle to be protected and detectors are arranged to defect the penetration of the light sheets by an incoming object, with the time intervals between the piercing of the planes defining the path of the incoming object and its expected impact time. An array of bullet-firing barrels is arranged to project bullets in ah iron curtain under control of a fire control module that fires a round in a barrel above the projected flight path such that the round impacts the nose of the object and disables it. It is thus the piercing of the skewed light sheets mat provides information as to the impact point of the object as well as its time of arrival so that a round can be fired to intercept the object as it arrives at the iron curtain.
    Type: Application
    Filed: May 2, 2011
    Publication date: August 25, 2011
    Applicant: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Jefferson E. Odhner, John A. McNeil, Geoffrey P. Smyton
  • Patent number: 7963442
    Abstract: A Reconfigurable Nose Control System (RNCS) is designed to adjust the flight path of spin-stabilized artillery projectiles. The RNCS uses the surface of a projectile nose cone as a trim tab. The nose cone may be despun by the action of aerodynamic surfaces, to zero spin relative to earth fixed coordinates using local air flow, and deflected by a simple rotary motion of a Divert Motor about the longitudinal axis of the projectile. A forward section of the nose cone having an ogive is mounted at an angle to the longitudinal axis of the projectile, forming an axial offset of an axis of the forward section with respect to the longitudinal axis of the projectile. Another section of the nose cone includes another motor, the Roll Generator Motor, that is rotationally decoupled from the forward section and rotates the deflected forward section so that its axis may be pointed in any direction within its range of motion.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: June 21, 2011
    Assignee: Simmonds Precision Products, Inc.
    Inventors: Dennis Hyatt Jenkins, Jim Byrne, John Christiana, Paul Franz, Tom Kelly
  • Publication number: 20110127328
    Abstract: A system and method for dual-band detection of incoming threats using an initial passive detection system and a selectively activated active detection system. Advantages include improved threat detection accuracy, reduction of false alarms, and reduced radiation emission from the active system, thereby making the active system more difficult to detect and reducing irradiation levels of users and bystanders. Variations include systems employing passive optical or electro-optical detectors, systems employing active RADAR or LADAR detectors, and systems connected to alarm signal/threat mitigation systems. The system may be configured for use on ground vehicles or small watercraft. Variations of the system may be specifically configured to detect incoming munitions launches.
    Type: Application
    Filed: October 20, 2009
    Publication date: June 2, 2011
    Inventor: Michael C. WARREN
  • Publication number: 20110057070
    Abstract: Methods and apparatus for communications between a fire control system and an effector according to various aspects of the present invention may include a communications link. The communications link may be coupled to a launcher for the effector and the effector. The communications link is detachably coupled to at least one of the launcher and the effector. The communications link may be adapted to transmit a fire control solution to the effector after initiating the launch.
    Type: Application
    Filed: May 14, 2008
    Publication date: March 10, 2011
    Inventors: David A. Lance, Steven T. Siddens
  • Publication number: 20100163621
    Abstract: The present invention relates to a hierarchical system and method for task assignment (TA), coordination and communication of multiple Unmanned Aerial Vehicles (UAV's) engaging multiple attack targets and conceives an ad-hoc routing algorithm for synchronization of target lists utilizing a distributed computing topology. Assuming limited communication bandwidth and range, coordination of UAV motion is achieved by implementing a simple behavioral flocking algorithm utilizing a tree topology for target list routing. The TA algorithm is based on a graph-theoretic approach, in which a node locates all the detectable targets, identifies them and computes its distance to each target. The node then produces an attack plan that minimizes the sum of distances of the UAV's in the subtree of a given node to the targets.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 1, 2010
    Applicants: Carmel-Haifa University Economic Corporation Ltd., Technicron Research & Development Foundation Ltd.
    Inventors: Yosef Ben-Asher, Sharoni Feldman, Pinchas Gurfil
  • Publication number: 20090260511
    Abstract: A projectile tracking system for acquiring and precisely tracking a projectile in flight in order to reveal the source from which the projectile was fired. The source is revealed by the back projection of a 3-dimensional track file. In preferred embodiments the system is installed on a vehicle, such as an un-manned blimp or other aircraft, road vehicle or ship, for locating and destroying small arms fire directed at the vehicle. A kill system may also be included on the vehicle to destroy the source of the projectile.
    Type: Application
    Filed: February 17, 2009
    Publication date: October 22, 2009
    Inventors: Steve Melnychuk, William Foote, Zhong Quan Zhao, Fritz (Cornelius) Moore
  • Publication number: 20090173789
    Abstract: A method of displaying target engageability information to a pilot of an aircraft in flight including calculating according to instantaneous aircraft position and motion relative to at least one target to be engaged and to characteristics of a weapon, earliest and latest weapon release points between which the weapon is presently capable of engaging a target of interest and generating display symbols indicating a weapon launch acceptable region and the instantaneous position of the aircraft relative thereto. A system for displaying the information and a target engageability display symbology are also described.
    Type: Application
    Filed: August 16, 2006
    Publication date: July 9, 2009
    Inventor: James Matthew Howard
  • Patent number: 7551121
    Abstract: The multi-target tracking and discrimination system (MOST) fuses with and augments existing BMDS sensor systems. Integrated devices include early warning radars, X-band radars, Lidar, DSP, and MOST which coordinates all the data received from all sources through a command center and deploys the GBI for successful interception of an object detected anywhere in space, for example, warheads. The MOST system integrates the optics for rapid detection and with the optical sensor array delivers high-speed, high accuracy positional information to radar systems and also identifies decoys. MOST incorporates space situational awareness, aero-optics, adaptive optics, and Lidar technologies. The components include telescopes or other optical systems, focal plane arrays including high-speed wavefront sensors or other focal plane detector arrays, wavefront sensor technology developed to mitigate aero-optic effects, distributed network of optical sensors, high-accuracy positional metrics, data fusion, and tracking mounts.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: June 23, 2009
    Assignee: Oceanit Laboratories, Inc.
    Inventors: Daniel G. O'Connell, Ken C. K. Cheung
  • Patent number: 6776336
    Abstract: A ballistics fire control system for a spin or fin stabilized projectile is provided with means which are operated such that the closest point of approach between a fired projectile and a target is taken to be at the instant the projectile velocity vector (6) is orthogonal to the position error vector (13) between the projectile and target in accordance with the relationship: Vp•(PP−PF)=0 where Vp is the projectile velocity vector, PP is the projectile trajectory or position vector, PF is the target future position vector, • is the vector dot product and (PP−PF) is the position error vector.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: August 17, 2004
    Assignee: BAE Systems plc
    Inventor: Peter John Bowen
  • Patent number: 6260759
    Abstract: A method for tracking a target having substantially constrained movement utilizes the steps of determining constrains for movement of the target, obtaining information on movement of the target, and predicting that the target will continue to move upon a route segment after the target has begun to move thereupon. The constraints are made up of a plurality of separate alternate route segments. Predicting that the target will continue to move upon the route segment upon which it is previously moving facilitates targeting, intercept and intelligence with a substantial degree of reliability, particularly when continuing information, such as radar returns, is not available.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: July 17, 2001
    Assignee: Northrop Grumman Corporation
    Inventors: Quan Bach Nguyen, Herbert Landau
  • Patent number: 5992292
    Abstract: A fire-control system for anti-aircraft defense systems, particularly mobile ones, having at least one launch apparatus for guided missiles that is pivotable in elevation and disposed on a platform that is pivotable in azimuth, has an optical target-tracking sensor that is rigidly coupled with the launch apparatus, a follow-up computer for panning the target-tracking sensor after targets, a directional angle computer for calculating lead and elevation of the guided missile during launch, and a control unit that has adjustment drives for the platform and launch apparatus, which unit pivots the platform in azimuth and the launch apparatus in elevation, and, prior to launch, locks the lead on the platform and the elevation on the launch apparatus.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: November 30, 1999
    Assignee: STN Atlas Elektronic GmbH
    Inventor: Luitjen Ennenga
  • Patent number: 5920027
    Abstract: A fire control system and a method for estimating periodic component of a target path. An efficient, fast-setting estimator is realized by first estimating the period and then the amplitude of the periodic component on the basis of the most recent measurements made.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: July 6, 1999
    Assignee: Hollandse Signaalapparaten B.V.
    Inventor: Abraham Johannes Maas
  • Patent number: 5635662
    Abstract: A method and apparatus for use by a personnel in combat unit to assess in bstantially real-time the threat to a combat unit posed by one or more threat projectiles. A command and control system receives a variety of input data and information signals and generates corresponding signals directed to a processing module. The processing module receives and processes the informational signals indicative of the status and characteristics of the combat unit and threat projectile. The processing module determines whether sample threat projectiles with an uncertainty region associated with each threat projectile detects the combat unit and determines therefrom a probability that the actual threat projectile detects the combat unit. The processing module also generates a probability of detection signals, to generate a report in user perceivable form, indicative of the probability of the threat projectile detecting the combat unit on a substantially real-time basis.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: June 3, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David B. Robertson, Joseph J. Perruzzi, Laura C. Rabenold
  • Patent number: 5489768
    Abstract: An optical storage disk for use in an optical storage system includes a storage layer which is capable of being disrupted when a laser beam of sufficient intensity is focused thereon. The optical storage disk has a transparent substrate layer on one side of the storage layer and a lacquer layer on the other side of the storage layer. The disruptions provided by the laser beam are selected to provide human readable and/or machine readable patterns. To reduce the damage to portions of the optical disk other than the storage layer, the storage layer is exposed to the laser beam prior to curing, or prior to applying and curing the lacquer layer. The optical disk can be of the type with data written thereon during fabrication, or the disk can be of the type in which data can be impressed thereon after fabrication of the optical disk. The patterns on the optical disk can be in the form of optical bar codes.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: February 6, 1996
    Assignee: Eastman Kodak Company
    Inventors: Scott A. Brownstein, Joseph P. Lentz, Thomas R. Cushman, Patrick J. Kline
  • Patent number: 5467682
    Abstract: A method for firing a computerized radar weapon system upon a fast target to reduce errors in aim caused by aim-biasing factors that vary in time and space includes computing a point along an extrapolated target track ahead of the target at which to stage an interception. A spotting round is fired at the point to zero-in just before the interception and then a correctly-aimed intercept round is fired at the point in time to make the interception. Additional interceptions may be staged at backup intercept points to guard against a miss, a burst of spotting rounds may be fired at an intercept point to average out perturbations in the trajectory of the projectile from each one of the rounds, and conventional monopulse radar methods of aim bias measurement may be employed to detect projectile miss information.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: November 21, 1995
    Assignee: Hughes Missile Systems Company
    Inventor: Herbert B. Brooks
  • Patent number: 5359283
    Abstract: A hand held wand utilizes an elongated rigid hollow longitudinally extending stainless steel tube open at both ends. A data collection probe is disposed in one tube end. A data uploading port is disposed in the other tube end. The probe and port each include a stainless steel body electrically and mechanically engaging the tube. Each body has a front surface disposed outside of the tube with a peripheral annular ring and a central recess extending inwardly and terminating in a rear surface having a first opening. Each body also includes a corresponding longitudinally extending central electrode disposed in the corresponding recess. Each central electrode has an exposed front surface flush with the ring and a rear surface aligned with and spaced from the opening. Electrical insulation is disposed in the recess to electrically isolate the electrode from the body and the tube. The two bodies and the tube define a common external electrical ground with respect to the central electrodes.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: October 25, 1994
    Assignee: Brooklyn Computer Systems Inc.
    Inventors: Alan E. Strick, John R. Widly
  • Patent number: 4959800
    Abstract: A method for determining the position and velocity of a target in inertial space including the steps of (a) tracking the target and providing three orthogonal velocity components in inertial space; (b) computing the scalar velocity V.sub.T of the target in an inertial reference frame by providing the square root of the sum of the squares of the orthogonal velocity components; and (c) computing the aspect angle .beta..sub.cue of the target relative to a line-of-sight to a platform as an inverse sinusoidal function of the ratio of one of said orthogonal components and V.sub.T, when such tracking data is available, and otherwise; (d) estimating actual target maneuver to develop a minimum uncertainty zone using an assumed worst case lateral target acceleration. Also disclosed are techniques for bounding the aspect angle and for providing global range and range rate estimates which account for uncertainties in the measurements of target and platform ranges and velocities.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: September 25, 1990
    Assignee: Hughes Aircraft Company
    Inventor: Richard L. Woolley
  • Patent number: 4947350
    Abstract: Tactical routing apparatus e.g. for an aircraft comprises stores for storing data representing the geographical domain through which the aircraft is to pass and data representing the location and type of a plurality of threats (e.g. gun or missile sites), and a processor for determining and displaying on a V.D.U. the optimal route connecting two points and the probability of successfully completing the route.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: August 7, 1990
    Assignee: British Aerospace Public Limited Company
    Inventors: Declan G. Murray, John H. Powell
  • Patent number: 4922801
    Abstract: A fire control system for a weapon having an operator-aimed barrel compri a sighting piece carried by the barrel and having a reticle adjustable in position with respect to the bore axis of the barrel. A camera fast with the barrel has a field coaxial with the bore axis. The apparent movement of the target in the field of the camera is measured as well as the angular movements of the barrel by the operator. The position to be given to the reticle is computed from variations of the aiming direction of the barrel and from the apparent movement and the position of the reticle is consequently adjusted. The reticle may consist of a LCD.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: May 8, 1990
    Assignee: Societe d'Applications Generales d'Electricite et de Mecanique Sagem
    Inventors: Paul Jaquard, Jean-Pierre Lelay, Jean Doreau
  • Patent number: 4830487
    Abstract: In a method for locating an object such as a target for firing simulation in which the echo of a radiation beam emitted in the direction of the object and reflected back from the object is detected in the form of an electric signal, the signal is subjected to a correction treatment in order to compensate for variations in detection sensitivity as a function of the distance of the object. The signal treatment primarily consists in imposing on the signal a variable minimum threshold or a constant threshold with a variable preliminary gain. The variations take place in accordance with a predetermined correction law as a function of the time which elapses between emission of the radiation and detection of the echo.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: May 16, 1989
    Assignee: Giravions Dorand
    Inventors: Goujon Michel, Legay J. Francois
  • Patent number: 4825055
    Abstract: An error-free pointing and tracking system is disclosed which separates the functions of pointing and tracking. Beginning with an initialized trajectory for an object, a sensor is positioned and deviations of the object position with respect to the sensor are noted. To the extent these deviations are trended, the gain of a trajectory correction algorithm is adjusted. Based on the adaptive gain trajectory correction algorithm, a new position estimate is determined. The new position estimate is corrected for servo lag error by referring to a predefined correlation between at least the acceleration term of the trajectory and prerecorded servo lag error. The position estimate, corrected for servo lag is used to then point the sensor.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: April 25, 1989
    Inventor: Eugene J. Pollock
  • Patent number: 4794235
    Abstract: An improved method and apparatus for aiming a gun at a target moving along a non-linear path is disclosed which relies upon the discovery that at any given moment in a non-linear path, a target is traversing an arc of a circle. Methods for calculating offsets for aiming a gun at a point further along on the arc of the circle in accordance with the determined time of flight of the projectile are disclosed.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: December 27, 1988
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Harold H. Burke, Toney R. Perkins
  • Patent number: 4783744
    Abstract: A method and apparatus for identifying inertial reference unit (IRU) errors in a guided missile employing a multi-mode guidance system and constructing correction terms to recover the missile true position. Discrepancy parameters are introduced to indicate misalignment between missile and launching platform (or ship) inertial frames where the missile onboard executive computer simultaneously processes the data provided from missile onboard sensors and target relevant data uplinked from the launching platform. The discrepancy parameters are employed to construct correction factors used to reduce the discrepancies. This updated missile configuration is then coupled with the target state estimator outputs to reconstruct smoothed line-of-sight (LOS) angles for terminal homing engagement.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: November 8, 1988
    Assignee: General Dynamics, Pomona Division
    Inventor: William R. Yueh
  • Patent number: 4760397
    Abstract: The target tracking system has high tracking reliability at small servo load and comprises a plural number of groups of target sensors having tracking signal travelling times which vary from one group to the other and defining respective lines of sight, a servo system causing the lines of sight to track the target, a target estimator for estimating the movement of the target, a servo estimator for estimating the movement of the servo system, and a regulator which identically controls the servo system and the servo estimator such that the vectorial difference between the estimate of the target movement and the estimate of the servo movement is caused to approach zero. During the target tracking operation, vectorial target deviation signals which are generated by groups of angle sensors, are processed by multipliers using respective matrices in order to produce related combined target deviation signals.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: July 26, 1988
    Assignee: Contraves AG
    Inventor: Heinz Piccolruaz
  • Patent number: 4730104
    Abstract: A display is disclosed for indicating in the peripheral vision of a viewer the deviation between the actual position of a target and a reference position such as an aiming point. Light sources are arranged around a common circle which is of a particular size such that when viewed from a particular distance, the viewer sees the display by peripheral vision. There are two sets of light sources, one of which indicates the azimuth and elevation deviations of the target from the aiming point and the other of which may be used to indicate range. The direction of azimuth and elevation deviation is indicated by flashing selected light sources around the circle and the magnitude of deviation is indicated by flashing those light sources at a flash rate indicative of the magnitude. Range is indicated by causing the second set of light sources around the circle to illuminate upon attainment by the target of a certain range.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: March 8, 1988
    Assignee: Hughes Aircraft Company
    Inventor: James G. Rogers
  • Patent number: 4616127
    Abstract: In a fire control system for a vehicle or vessel a data processor (21) connected to the target tracking unit (7) determines, in a first coordinate system coupled to said unit (7), angular error data about a target position for aligning the tracking unit (7) with the target position.A fire control computer (22) is incorporated for:a. determining matrix (H) elements concerning the transformation from the first coordinate system to a second fixed horizontal coordinate system, using data about relative angular positions between the tracking unit (7), the vehicle or vessel and a turret mounted thereon, and using data from reference orientation means (18, 19, 20) about the angular positions in said second coordinate system;b. converting the angular error data into target positions in said second coordinate system;c. changing said target positions to gun aiming data; andd. transforming the latter data to a third coordinate system coupled to the vehicle or vessel.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: October 7, 1986
    Assignee: Hollandse Signaalapparaten B.V.
    Inventor: Ian G. Whiting
  • Patent number: 4577962
    Abstract: A firing weapon is associated with a laser radiation source mounted in proximity to the weapon and also with a detector which is sensitive to the laser radiation. The orientation of the radiation is adjusted independently of the aiming of the weapon in order to carry out continuous detection of the target as a result of detection of radiation by the detector after reflection from the target. The orientation and the time of transit of radiation between source and target are utilized in order to obtain target data relating to position in elevation and in azimuth as well as distance of the target. The data are processed in order to orient a real shot or in order to compare the data quantitatively with the position of a simulated projectile which follows a fictitious trajectory.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: March 25, 1986
    Assignee: Giravions Dorand
    Inventors: Pierre de Guillenschmidt, Jacques Hubert, Michel Goujon, Christian Saunier
  • Patent number: 4494202
    Abstract: A method for augmenting a noise-adaptive predictive proportional navigation terminal guidance scheme. In a fourth order configuration with noise adaptive varying gain parameters calculated as a function of time-to-go, this system implements an optimal control law to augment proportional navigation with target and missile information terms and a navigation ratio which is a function of time-to-go. By employing a fourth order system, enhanced use may be made of information already available in the guidance computer and missile control system to decouple target motion information from the missile control signals. Decoupled target motion information facilitates blind-mode operation in the end game, the last few seconds before intercept. Decoupled missile control information enables the airframe to be controlled to predefined orientations for aimed warhead applications.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: January 15, 1985
    Assignee: General Dynamics, Pomona Division
    Inventor: William R. Yueh
  • Patent number: 4449041
    Abstract: A method of controlling antiaircraft fire is described in which an aircraft is tracked continuously during the flight of a burst of projectiles and the probability of a hit is continuously revised according to the latest target maneuver as the projectiles proceed to the intercept point. If, before all of the projectiles reach the aircraft, the probability of a hit falls below a specified level, another burst of projectiles is fired. As this second burst proceeds to target its computed probability of hit is combined with that of the previously fired burst to determine the cumulative probability of hit of the two bursts taken together. If, before the second burst reaches the target, the cumulative probability falls below the specified level then a third burst is fired. This activity repeats until the cumulative probability of hit is driven up and kept up above the specified level.
    Type: Grant
    Filed: January 14, 1983
    Date of Patent: May 15, 1984
    Assignee: Raytheon Company
    Inventor: Donald D. Girard
  • Patent number: 4402250
    Abstract: In a method for automatically measuring aiming errors and correcting aiming values in the aiming and firing of ballistic weapons at moving targets the continuously supplied direction values (A', E'+.sigma.) of a target position measurement, corrected for daily influences and for the superelevation, are compared with the aiming values (.alpha.+.epsilon.) of at least one gun (2) in a series of successive time intervals after storage of the gun aiming values (.alpha.+.epsilon.) in a memory (3) for a period corresponding with the instantaneous time of flight of the projectile (.tau.).
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: September 6, 1983
    Assignee: Hollandse Signaalapparaten B.V.
    Inventor: Hans-Friedrich Baasch
  • Patent number: 4320287
    Abstract: Vehicle tracking and position predicting apparatus includes an improved Kalman velocity filter feedback loop having a forward gain matrix for loop coordinate error factors and those of their derivatives; and position predicting computing apparatus in the loop feedback path between the system output and an input error node. Sensor reference target signals (e.g., range, bearing and elevation) are connected as inputs to the filter error node.In accordance with one aspect of the present invention, sensor coordinate reference errors from the input error node are converted to target reference coordinates. Pursuant to a further aspect of the present invention, the gain matrix is varied dependent upon sensor coordinate variables. Gain matrix variations are thus independent of geometry and sensor reference coordinates.
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: March 16, 1982
    Assignee: Lockheed Electronics Co., Inc.
    Inventor: Harris C. Rawicz