Return Signal Controls External Device Patents (Class 342/61)
  • Patent number: 7137588
    Abstract: A method for ballistic target defense including identifying a launched ballistic target having a target launch point, a target launch direction, a target speed, and a target trajectory; launching a target interceptor in a launch direction that is generally the same as the target launch direction and with a speed that is less than the target speed; providing the interceptor with an approximate target intercept trajectory; and accelerating the interceptor at an approximate point of intercept to substantially match the target trajectory. During a relatively long target engagement time, the interceptor has approximately a zero net relative velocity with respect to the target.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: November 21, 2006
    Assignee: United Technologies Corporation
    Inventor: John Morgan Humphrey
  • Patent number: 7121502
    Abstract: A guidance system for guiding each of several projectiles toward a moving target has a platform having a radar system for illuminating the target with a radar signal. Each projectile has a receiver for receiving the radar signal reflected from the target, a transponder for replying to Global Positioning System (GPS) like timing signals from several timing signal sources, and a data link transceiver for establishing a bidirectional data link to the platform. The data link carries the measured frequency shift of the radar signal reflected from the target as measured by the projectile. A computer on the platform computes a relative position of each projectile with respect to the target from tracking the moving target using the radar system and the reply signal from the transponder on each projectile. The data link sends guidance commands from the platform to each projectile to guide the projectile to the target.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: October 17, 2006
    Assignee: Raytheon Company
    Inventors: Kapriel V. Krikorian, Robert A. Rosen
  • Patent number: 7123199
    Abstract: An object deflection system includes at least one sensor for detecting an impending impact of a first object with a second object. The sensor communicates with a deflector deployment device to substantially instantaneously activate the deflector deployment device upon detecting the impending impact. When activated, the deflector deployment device substantially instantaneously deploys a deflector so that the first object impacts the deflector. The first object is therefore deflected by the deflector and prevented from impacting second object.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: October 17, 2006
    Assignee: The Boeing Company
    Inventor: Phillip R Rotta
  • Patent number: 7104496
    Abstract: An interceptor device for protecting a platform against an incoming threat is provided. The interceptor device comprises a housing and a countermeasure device. At least one detonating charge is capable of deploying the countermeasure device. A controller device housed by the housing is capable of directing the detonating charge(s) to deploy the countermeasure device at least partially radially outward of the housing, corresponding to the threat trajectory. A sensor device is in communication with the controller device, and comprises a range-finding apparatus including one of a LADAR, a RADAR, and a LIDAR device, capable of sensing the threat and/or a range thereof, at least partially radially outward of the housing, and notifying the controller device if the threat is sensed, to cause the controller device to direct the detonating charge(s) to deploy the countermeasure device to impact the threat in the intercept zone. Associated systems, and methods are also provided.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: September 12, 2006
    Assignee: Chang Industry, Inc.
    Inventor: Yu-Wen Chang
  • Patent number: 7098841
    Abstract: A unit is described that is configured to control detonation of a munition such that the munition is detonated at a desired altitude. The unit includes a radar transmitter, a radar receiver that includes a radar range gate, and a sequencer. The sequencer is configured to receive a detonation altitude and set the range gate based on the received detonation altitude. The unit is also configured to output a detonation signal when radar return pulses received by the receiver aligned with gate delay pulses from the range gate.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: August 29, 2006
    Assignee: Honeywell International Inc.
    Inventors: James R. Hager, Glen Backes, Timothy J. Reilly
  • Patent number: 7079070
    Abstract: Disclosed is an autonomous radar guidance of an otherwise radar-directed projectile (RDP). The preferred embodiment uses an inexpensive radar receiver with an inexpensive slow wave antenna, placed internally in a gun projectile, and on the surface of the projectile, respectively. The receiver detects the angle and range of the target relative to the body coordinates of the projectile. The radar receiver operates as a bistatic radar apparatus with the primary illumination emanating from the fire control radar directing the fire of the gun. When integrated with an on-board trajectory correcting system, such as divert thrusters of miniature proportions, the projectile autonomously refines its otherwise ballistic trajectory to the target. The trajectory refinements produce improved kills per round, with the potential for reducing the ammunition expended and time-loading on the fire control system and its guns.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: July 18, 2006
    Assignee: Alliant Techsystems Inc.
    Inventors: Knut Kongelbeck, Ada Mendelovicz
  • Patent number: 7076342
    Abstract: An attitude sensing apparatus for determining the attitude of a mobile unit is provided that can reliably estimate an alignment angle between a GPS antenna coordinate system and an IMU coordinate system with good accuracy regardless of the magnitude of the alignment angle. Based on observation of the difference between a GPS angular velocity and an IMU angular velocity, an alignment angle estimating section estimates an alignment angle and sensor errors. An alignment angle adder and a sensor error adder cumulatively add and update the estimated alignment angle and sensor errors, respectively. The estimated alignment angle is fed back to an inertia data converter while the estimated sensor errors are fed back to an inertia data correcting section. The apparatus repeatedly performs estimation until the estimated alignment angle gradually approaches a true alignment angle by successively feeding back estimated values to a flow of alignment angle estimation process.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: July 11, 2006
    Assignee: Furuno Electric Company, ltd.
    Inventors: Masaru Fukuda, Hiroyuki Toda
  • Patent number: 7068210
    Abstract: A position-adaptive radar method and device for small UAV platforms capable of detecting “leakage signals” that, for example, propagate between two buildings or “leak through” penetrable surfaces such as walls or layers of the ground. The position-adaptive radar comprises a monostatic radar receiver that measures and processes leakage signals and then “self adapts” in position to establish line-of-sight between a mini-UAV platform and an obscuration channel that propagates the leakage signal. This allows a mini-UAV platform to process signals in real-time while gathering intelligence information and locating objects-of-interest that may be embedded within an obscuration channel.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: June 27, 2006
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Atindra K. Mitra, Krishna Pasala
  • Patent number: 7046187
    Abstract: An active protection system comprising an ultrawideband radar for threat detection, an optical tracker for precision threat position measurement, and a high powered laser for threat kill or mitigation. The uwb radar may use a sparse array antenna and may also utilize Doppler radar information. The high powered laser may be of the optically pumped solid state type and in one embodiment may share optics with the optical tracker. In one embodiment, the UWB radar is used to focus the high power laser. Alternative interceptor type kill mechanisms are disclosed. In a further embodiment, the kill mechanism may be directed to the source of the threat.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: May 16, 2006
    Assignee: Time Domain Corporation
    Inventors: Larry W. Fullerton, Mark D. Roberts, James L. Richards
  • Patent number: 7040570
    Abstract: Applicants' ATR system is weather-agile because it is comprised of a primary target sensing means that is capable of surveilling the target scene in foul or fair weather, and a secondary target sensing means that is also capable of sensing targets in various weather. The primary and secondary sensing means communicate through a control center so that ultimately, among several weapons available, the most strategically located and equipped weapon is activated for the destruction of a selected target, given the weather. The control center accomplishes the communication by receiving the sensed target signature from the primary sensing means, processing the signature using database already resident in the center and transmitting the processed target signature to the weapon possessing the greatest potential for successfully destroying the target.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: May 9, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: S. Richard F. Sims, William C. Pittman
  • Patent number: 7032858
    Abstract: A plurality of sensor vehicles collect imaging data from an assigned location of a target region having targets and non-targets. The imaging data may be combined based on its location and the combined data is matched to a threat object map to identify the actual targets from the non-targets. In some embodiments, the sensor vehicles may be redirected to collect velocity and/or range information on the identified targets.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: April 25, 2006
    Assignee: Raytheon Company
    Inventor: Darin S. Williams
  • Patent number: 6980151
    Abstract: A bi-static continuous wave radar system and related methods for detecting incoming threats from ballistic projectiles includes a remote source of RF illumination, and a local receiver installed in one or more target aircraft. A first receiving channel acquires direct path illumination from the source and provides a reference signal, and a second receiving channel acquires a scatter signal reflected by a projectile. A processor coupled to each receiver corrects scatter signal Doppler offset induced by relative source motion, isolates narrowband Doppler signals to derive signatures characteristic of the projectile, and by executing appropriate algorithms, compares the derived signatures to modeled signatures stored in memory. If the comparison yields a substantial similarity, the processor outputs a warning signal sufficient to initiate defensive countermeasures.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: December 27, 2005
    Assignee: General Dynamics Advanced Information Systems, Inc.
    Inventor: Paul L. Mohan
  • Patent number: 6952179
    Abstract: A dual mode radar seeker comprising a wide-band passive anti-radar antenna system (3) at the rear of a radome (1), operating at relatively low radar frequencies in an amplitude comparison tracking mode, and a high-frequency (W-band) active amplitude-comparison antenna system (5) in the nose of the radome (1) and having a common boresight with the anti-radar system. The active system employs coarse phase shift steering (31, 41) of the antenna ‘beam’ for the transmit and, optionally, also, the receive ‘beam’. The high frequency and the use of phase shift steering both help to keep down the size of the active radar thus enabling it (5, 7, 9) to be positioned far forward in the nose of the radome (1) so as not to obscure the field of the anti-radar system (3).
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: October 4, 2005
    Assignee: BAE Systems Electronics Limited
    Inventor: Michael Arthur Jones
  • Patent number: 6952001
    Abstract: A system and method of providing situational awareness and weapon targeting is presented. The method includes determining the location of one or more enemy sites and one or more friendly sites. A “Do Not Engage” (DNE) zone is determined around each of the friendly sites and an “Allowable Engagement” (AE) zone is established around each of the enemy sites, wherein none of the AE zones overlap any of the DNE zones. An engagement plan is then determined based on the AE zones and integrity bounds on candidate munitions. The system includes a processing and communications network and a sensor element in communication with the processing and communications network. The system also includes a command control element in communication with the processing and communications network and an operating elements section in communication with the processing and communications network.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: October 4, 2005
    Assignee: Raytheon Company
    Inventors: Thomas L. McKendree, Hans L. Habereder, Donald R. Ormand
  • Patent number: 6933877
    Abstract: The Multiple-Antenna Jamming System (MAJS) is useful for missile-borne jamming of active protection system radars that operate in close proximity to the frequency band of the missile's radio frequency seeker. The MAJS utilizes multiple receiving and transmitting antennas to reduce shadowing effects due to the transmissive radome. It also channelizes the jamming signals into in-seeker-band and out-of-seeker band signals to synchronize the transmission of jamming signals with the emit-listen pattern of the missile seeker and to eliminate the problem of de-sensitizing the RF seeker from the jammer energy. The in-seeker-band jamming signals are transmitted only concurrently with the missile seeker emissions and any signals emanating from an enemy radar are received only during the listen mode of the missile seeker.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: August 23, 2005
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ralph H. Halladay, Michael R. Christian, Donald E. Lovelace
  • Patent number: 6909396
    Abstract: A method for determining the position of at least one second transmitting and receiving device (3) in respect of a first transmitting and receiving device in a passive access control system operating in the GHz range, comprising the steps of using a radar method, wherein signals (f1, f2) are received in the first transmitting and receiving device on the left-hand side and right-hand side of a modulation frequency (fmod), determining the distance of two signals (f1, f2) closest to the left-hand side and right-hand side modulation frequency (fmod) wherein the distance is proportional to the distance between the first transmitting and receiving device and at least one second transmitting and receiving device (3), so that multipath propagations are not taken into consideration.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: June 21, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Mario Haselsteiner, Klaus Hofbeck, Thomas Klement, Birgit Rösel, Arnd Stielow
  • Patent number: 6889934
    Abstract: A method of guiding a munition to a target transmitting one or more signals is described. The method includes configuring the munition with a radio frequency receiver, an antenna for the receiver mounted such that a main beam of the antenna pattern for the antenna is offset from a line of flight axis of the munition by an angle and configuring the munition to rotate along an axis substantially similar to the line of flight axis of the munition. The method also includes configuring the munition to process signals received at the antenna, wherein heading changes of the munition, the angle of the main beam of the antenna from the line of flight axis, and the rotation of the munition result in the received signals having amplitude variations. Directional corrections are generated for the munition to direct the munition towards the target based on amplitude variations in the received signals.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: May 10, 2005
    Assignee: Honeywell International Inc.
    Inventors: Steve H. Thomas, James R. Hager
  • Patent number: 6877691
    Abstract: A technique is provided that uses a dual mode seeker (IR and LADAR) for precise target dynamics measurement, which extends stripping to a much higher altitude than ground based radar. Initial results show that this approach works to altitudes in excess of 100 km. Stripping becomes a reliable way to discriminate lighter weight decoys from reentry vehicles at altitudes and ranges consistent with planned divert capabilities for terminal phase missile defense. It is a finding of this invention that the LADAR will improve the spatial resolution by a factor of five over typical missile defense IR seekers using a common aperture. The LADAR provides a 3D angle, angle, range (AAR) image for each laser pulse which is used to extract the precise target state vectors.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: April 12, 2005
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Michael E. DeFlumere, Michael P. Bulpett, Timothy J. Boyd, Kurt J. Nordhaus
  • Patent number: 6851645
    Abstract: A method and apparatus for finding a relative direction of received radiation is described. The received radiation is incident upon a window system at an angle and is transmitted therethrough. The magnitude of the transmitted radiation decreases as a continuous function of increasing angle of incidence, known as Fresnel transmittance. Opposing radiation detectors then detect this transmitted radiation, thereby creating a pair of detection signals, By dividing the difference of the detection signals by the sum of the detection signals, a processor generates a beta angle error curve and finds the relative direction of the radiation. Based upon this beta angle error curve, the processor generates an appropriate error correction signal for guiding an object based upon the relative direction of the received radiation. The method and apparatus are readily applicable to guiding munitions using a laser monopulse to designate a target.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: February 8, 2005
    Assignee: Lockheed Martin Corporation
    Inventors: Brett A. Williams, Brian C. Baker, Mark A. Turner
  • Patent number: 6842138
    Abstract: A target designation system for indicating a target to be destroyed by remotely guided ordnance comprising a receiver arranged to produce a receiver output signal in response to an incident electromagnetic signal from an attack aircraft. An auto-switch is connected to the receiver and arranged to produce a power signal in response to the receiver output signal. A transmitter is connected to the auto-switch to be activated by the power signal. When activated, the transmitter transmits a homing signal that indicates its location or the location of the target.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: January 11, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: James A. Wilkinson
  • Publication number: 20040239551
    Abstract: As previously mentioned in the introduction this concept uses components already available and in use, but not being used to achieve this systems goals of providing a safeguard for weapon user/owner their families, and societies. Communications technology combined with firearms to enhance the weapons reliability and improve on its significance as a vital instrument of protection. This modification will bring age-old safety into the information age.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 2, 2004
    Inventor: Joyce M. Ellis
  • Patent number: 6819283
    Abstract: A vehicle control apparatus includes an obstruction detection unit for measuring a headway distance until an existing ahead of the vehicle by means of a radar device, a unit for performing vehicle control or alarm control on the basis of the headway distance, a unit for detecting detection performance of the obstruction detection means in a vehicle in which the obstruction detection unit is used to perform two or more controls containing the vehicle control or alarm control, and a unit for controlling to stop operation of the vehicle control or alarm control in accordance with the detection performance individually.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: November 16, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Fumihiko Okai, Hiroshi Kuroda
  • Patent number: 6808139
    Abstract: A guidance method for guidance systems is disclosed. The method includes forming a target track point with a target tracker. The method corrects the track point with a manual correction signal. A speed of rotation of the line of sight is determined with the target tracker. A track control system dynamic model is provided for forming an estimated value for the rotation speed of the line of sight. The estimated value for the rotation speed of the line of sight is formed from the determined speed of rotation of a line of sight corrected with a correction value generated with the dynamic model of the track control circuit based on the manual correction signal. The estimated value of the speed of rotation of the line of sight is then used for guidance.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: October 26, 2004
    Assignee: Daimler-Benz Aerospace AG
    Inventor: Richard Sturm
  • Patent number: 6806823
    Abstract: Applicants' Passive Radar Detector for Dualizing Missile Seeker Capability incorporates passive RF detectors into a standard active MMW seeker missile with a minimum requirement for hardware modifications. Anti-radiation homing (ARH) antennas and down conversion elements are added to the missile and coupled to existing signal-processing hardware. The added antennas intercept the air defense radar emission signals and the conversion elements convert the intercepted signals to the intermediate frequency (IF) usable by the MMW radar. The IF can then be processed by signal processor that already exists as a part of the MMW seeker.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: October 19, 2004
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Brian J. Smith, Janice C. Rock
  • Patent number: 6798349
    Abstract: A system for identification and tracking of microwave responsive tags, the system comprising, a microwave responsive tag having a passive modulating element to uniquely backscatter directed microwave beams, a microwave base station for directing microwave beams in room sized areas, and a tag tracking system receiving input from the microwave base station, the tag tracking system storing state records of position and informational content of the microwave tag.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: September 28, 2004
    Assignee: Xerox Corporation
    Inventors: Edward A. Richley, Beverly L. Harrison
  • Patent number: 6799141
    Abstract: A method for determining the channel gain between one or more emitter(s) and one or more receiver(s) by using a linear transform, such as a wavelet transform. Provides a fast and robust method for determining the channel gain, the signal being emitted with a very low power since received signals are easily resolved at the receiver. The method is employed in a three dimensional pointing device for a computer improving the possibility of moving the pointer in three dimensions. Information may be obtained about objects positioned in the signal path. May be employed for door openers or for determining the position of a remote control or for reducing “Cross talk” in electrical components.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: September 28, 2004
    Assignee: Beamcontrol APS
    Inventors: Jakob Stoustrup, Anders La Cour-Harbo
  • Publication number: 20040140925
    Abstract: A network, sensor and method are provided that utilize the capabilities of impulse radio technology to help monitor and/or control the environment within a building. In particular, the network includes a sensor attached to a first impulse radio unit that is capable of transmitting an impulse radio signal containing sensor related information to a second impulse radio unit. The second impulse radio unit is attached to a control station that uses the sensor related information (e.g., environmental related information, safety related information or surveillance related information) to monitor and/or control the environment within a building. In one aspect of the present invention, the control system can better control and monitor the environment within the building because the sensor may be moved around within the building and reference impulse radio units may interact with the first impulse radio unit to enable the determination of the current position of the sensor.
    Type: Application
    Filed: December 29, 2003
    Publication date: July 22, 2004
    Inventor: Jonnathan H. Kim
  • Patent number: 6764041
    Abstract: An imaging fuse comprising a housing fixable within a receptacle at a fore end of a projectile, a coaxial support frame rotatably supported within the housing and fitted with an imaging assembly. The support frame is axially displaceable with respect to the housing. An axial shock absorbing system is provided intermediate the housing and the support frame, and a spin suppressing mechanism is associated with the support frame, for suppressing rotation of the support frame with respect to the housing.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: July 20, 2004
    Assignee: GEO.T. Vision Ltd.
    Inventor: Eliezer Oron
  • Patent number: 6765498
    Abstract: An embedded digitization system which enables a military platform to receive, transmit and process a variety of types of information for a variety of purposes. The system includes a mission processing capability, a digital message communications capability, a time and position location and navigation capability, a weapons delivery system aim and shoot capability, a sensor input processing capability, a user interface capability, and an input/output processing capability. The system exchanges information through digital message communications with other systems in a theater of operation. Information exchanged and processed by the system includes command and control information, situational information, intelligence information, mission information and host platform information.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: July 20, 2004
    Assignee: Honeywell International Inc.
    Inventor: Anthony Edward Sabatino
  • Patent number: 6762710
    Abstract: A target designation system for indicating a target to be destroyed by remotely guided ordnance comprising a receiver arranged to produce a receiver output signal in response to an incident electromagnetic signal from an attack aircraft. An auto-switch is connected to the receiver and arranged to produce a power signal in response to the receiver output signal. A transmitter is connected to the auto-switch to be activated by the power signal. When activated, the transmitter transmits a homing signal that indicates its location or the location of the target.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: July 13, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: James Albert Wilkinson
  • Publication number: 20040113834
    Abstract: A target designation system for indicating a target to be destroyed by remotely guided ordnance comprising a receiver arranged to produce a receiver output signal in response to an incident electromagnetic signal from an attack aircraft. An auto-switch is connected to the receiver and arranged to produce a power signal in response to the receiver output signal. A transmitter is connected to the auto-switch to be activated by the power signal. When activated, the transmitter transmits a homing signal that indicates its location or the location of the target.
    Type: Application
    Filed: July 17, 2003
    Publication date: June 17, 2004
    Inventor: James Albert Wilkinson
  • Patent number: 6744401
    Abstract: A method for testing a radar system utilizing flight test radar data is described. The method includes time synchronizing measured radar data with a GPS based time marker, storing at least a portion of the time synchronized radar data, storing the GPS data, processing the stored GPS data to correspond with a physical position of an antenna which received the radar data, providing a radar model, and comparing the processed radar model data to the stored radar data.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: June 1, 2004
    Assignee: Honeywell International Inc.
    Inventors: James R. Hager, Jason I. Formo, Jens M. Henrickson
  • Publication number: 20040090328
    Abstract: MW sensor 1 in one or more embodiments of the present invention is equipped with distance identifying means 41 capable of calculating relative distance(s) from the distance identifying means to object(s) at least partially within protected area(s) based on reflected wave(s); moved distance identifying means 42 capable of calculating moved distance(s) per unit time of object(s) at least partially within protected area(s); and object determination means 43 capable of receiving output(s) from distance identifying means 41 and moved distance identifying means 42, and capable of carrying out object detection determination operations(s) such that moved-distance-per-unit-time value(s), at least one of which serves as trigger value for object detection determination, is or are set lower as relative distance(s) to object(s) at least partially within protected area(s) grow smaller.
    Type: Application
    Filed: June 23, 2003
    Publication date: May 13, 2004
    Inventor: Masatoshi Tsuji
  • Patent number: 6727843
    Abstract: The present invention concerns a method and an arrangement for determining the angle of roll of a launchable body (4) which rotates in its path. The launchable body (4) can consist of a rotating projectile, shell, guided missile or the like, launchable from a launching device (1). According to the invention the transmitter antenna (3) and receiver antenna (5) are each designed with their sweeping beams (6, 9) directed essentially towards each other. By detecting the time the two beams (6, 9) coincide and the signal strength received in the receiver antenna, the angle of roll of the launchable body can be determined.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: April 27, 2004
    Assignee: Bofors Defence AB
    Inventor: Åke Hansen
  • Patent number: 6726146
    Abstract: A method of maneuvering target tracing is disclosed. The present invention relates to the field of target tracking and more generally to a method of employing multiple model and variable sampling rate technique, which achieve good tracking performance for a high-g maneuvering target. The results show that the present invention can handle the missile sudden maneuver better and are accurate.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: April 27, 2004
    Assignee: Singapore Technologies Aerospace Limited
    Inventors: Luowen Li, Chian Poh Lam
  • Patent number: 6720907
    Abstract: A system for the detection and determination of the success of interception of incoming missiles, used in conjunction with a defense weapon system capable of identifying and tracking incoming missiles and interceptors. The system comprises at least one of a plurality of sensing units. Each sensing unit comprises: an optical sensor for detecting optical signals within a predetermined range; tracking means coupled to the optical sensor for tracking an intercepting missile or an incoming missile; processing means for processing optical input detected by the optical sensor and analyzing the optical input to identify an optical signature and determine detonation of interceptor or incoming missile; communicating means for communicating data between the sensing unit and the defense weapon system; and control means for controlling the tracking means, the processing means and the communicating data.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: April 13, 2004
    Assignee: Rafael-Armament Development Authority Ltd.
    Inventor: Raphael Miron
  • Patent number: 6691947
    Abstract: The present invention includes a system and method for accurately locating moving targets. The system includes a targeting aircraft that has a radar system with a simultaneous SAR radar/moving target mode that generates an image and identifies moving targets in the generated image. The targeting aircraft also includes a mapping component that matches the generated image to a stored digital map, and generates moving target location information based on the matched image and map and the identified moving targets.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: February 17, 2004
    Assignee: The Boeing Company
    Inventor: Christopher M. La Fata
  • Patent number: 6680691
    Abstract: A phase processor is disclosed which is configured to receive processed radar return data from a left radar channel, a right radar channel, and an ambiguous radar channel. The phase processor comprises a plurality of phase detectors each with an input and a reference input. The phase detectors are configured to determine a phase difference between radar return data received at the input and radar return data received at the reference input.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: January 20, 2004
    Assignee: Honeywell International Inc.
    Inventors: James R. Hager, Jens M. Henrickson, Lavell Jordan, Todd R. Burlet
  • Publication number: 20040000991
    Abstract: A collision detection system and method of estimating a miss distance of an object and estimating length and width of the object are provided. The collision detection system includes a sensor for sensing an object within a field of view and measuring range and range rate of the sensed object. The collision detection system further includes a controller for estimating a miss distance of the object and further estimating length and width of the object as a function of the range and the range rate.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 1, 2004
    Inventors: Jan K. Schiffmann, Lawrence A. Humm
  • Patent number: 6666401
    Abstract: A missile defense system includes a tracking station for monitoring the course and/or trajectory of an incoming missile. The incoming missile course and/or trajectory information is communicated to an intercept missile, whose course and/or trajectory are calculated based on the information of the incoming missile received from the tracking system and the intercept missile location received from, for example, a GPS system. The tracking system monitors the flight of the incoming missile to determine any changes to its course and/or trajectory, and communicates these changes to the intercept missile. The intercept missile adjusts its course and/or trajectory based on the updated information received from the tracking station to provide accurate and reliable intercept of the incoming missile.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: December 23, 2003
    Assignee: Technology Patents, LLC
    Inventor: Aris Mardirossian
  • Patent number: 6664917
    Abstract: A surface imaging radar system for an airborne platform, the system comprises a transmitter for generating a radar signal. The system also comprises an antenna configured to transmit a radar signal generated by the transmitter and receive radar return information from one or more directions directly below the airborne platform to an angular direction of approximately 30 degrees greater than straight down. The system also includes a processor configured to generate surface information based on the received radar return information and an image processor for generating an image based on the surface information.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: December 16, 2003
    Assignee: The Boeing Company
    Inventors: Robert H. Goebel, David C. Toretta, Stacie K. Corrubia
  • Patent number: 6650277
    Abstract: A target designation system for indicating a target to be destroyed by remotely guided ordnance comprises a receiver arranged to produce a receiver output signal in response to an incident electromagnetic signal from an attack aircraft. A switch is connected to the receiver and arranged to produce a power ON/OFF signal in response to the receiver output signal. A transmitter is connected to the auto-switch to be selectively activated and deactivated by the power ON/OFF signal. When activated, the transmitter transmits a homing signal that indicates its location or the location of the target being illuminated by the transmitter signal.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: November 18, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: James Albert Wilkinson
  • Patent number: 6633252
    Abstract: A radar-plow drillstring steering system comprises a steering plow and a measurements-while-drilling instrument for mounting just behind the drill bit and downhole motor of a drill rod. The instrument includes a radar system connected to upward-looking and downward-looking horn antennas and a dielectric-constant sensor. The steering plow includes four pressure pads radially distributed around the outside surface and their associated servo motors. A coordinated control of the pressure pads allows the steering plow to push the drillstring and drill bit up-down-left-right. The antennas and sensor are embedded in respective ones of the pressure pads and are used to electronically and non-invasively probe a coal seam to locate its upper and lower boundary layers. The dielectric-constant sensor provides corrective data for the up and down distance measurements. Such measurements and data are radio communicated to the surface for tomographic processing and user display.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: October 14, 2003
    Inventors: Larry G. Stolarczyk, Gerald L. Stolarczyk
  • Patent number: 6626396
    Abstract: A method for guiding an intercepting missile to a body-to-body contact with an airborne target in the atmosphere. The method includes the steps of guiding the intercepting missile to within an appropriate distance from the airborne target, illuminating the airborne target, using an illuminator carried by the intercepting missile, acquiring an image of the illuminated airborne target and, steering the missile in accordance with an aimpoint on the image.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: September 30, 2003
    Assignee: Rafael-Armament Development Authority Ltd.
    Inventor: Arnon Secker
  • Publication number: 20030179127
    Abstract: The invention relates to a device for counting at least one person (7) that passes a passage having a floor. Said device comprises at least one distance sensor (3, 4) that emits a cone or rays (5, 6) from radar rays or ultrasonic waves, receives the reflected rays/waves and provides an evaluation device with the received signals. Said cone(s) of radiation (5, 6) cover(s) the entire width of the passage and is/are disposed at an angle with respect to the direction of movement of the person (7) passing the passage. The aim of the invention is to improve people counters known from the art where the distance sensors are often disposed above head height and to provide a counter which is simple in design and which can be disposed as inconspicuously as possible and without being noticed by the people passing the passage. To this end, the distance sensor (3, 4) is accommodated in a housing (1, 2) disposed on the floor.
    Type: Application
    Filed: March 27, 2003
    Publication date: September 25, 2003
    Inventor: Hans-Theo Wienand
  • Patent number: 6621418
    Abstract: The present invention relates to devices enabling a person moving along a given path to be warned against the presence on the path of objects that might present a danger for that person. The device of the invention is characterized essentially by the fact that it comprises object detection means 1, said detection means being suitable for delivering a detection signal on an output 2, a change of state in this signal being indicative of the presence of an object in a predetermined zone of the path, means 3 for connecting the connection means to a first portion 4 of the body of the person, and means 5 for converting the detection signal into an electrical function-stimulating signal acting on a second portion 6 of the body of the person. The device of the invention is particularly advantageously applicable to enabling combatants to detect explosive mines or the like.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: September 16, 2003
    Inventor: Christophe Cayrol
  • Publication number: 20030142004
    Abstract: A device for data transmission in a motor vehicle and/or from a motor vehicle in its vicinity has a first transceiver unit (1) in or on the motor vehicle and a second transceiver unit (2) which is provided in at least one transponder unit whose spatial position relative to the vehicle may be variable or any desired position; it is characterized in that the first transceiver unit (1) is a radar unit equipped for distance measurement, expanded by adding a two-channel data transmission system; the second transceiver unit (2) is also a two-channel data transmission unit, and the microwave frequencies (f1, f2) for two-channel communication of the data transmission system are selected so that their difference |f1-f2| yields an intermediate frequency (fIF) which is processable using conventional components in a heterodyne receiver in the reception part of each of the first and second transceiver units (1, 2).
    Type: Application
    Filed: December 13, 2002
    Publication date: July 31, 2003
    Inventors: Frank Gottwald, Klaus Voigtlaender, Slava Tihovsky, Stefan Gaier, Elmar Giehler, Peter Crowhurst
  • Publication number: 20030137445
    Abstract: An auto-docking system has been provided that can automatically dock a ship. The auto-docking system provides a close in radar system and a secondary propulsion system that is under control of a docking processor.
    Type: Application
    Filed: January 22, 2002
    Publication date: July 24, 2003
    Inventors: H. Barteld Van Rees, Michael Joseph Delcheccolo, Delbert Lippert, Mark E. Russell, Walter Gordon Woodington, Keith Wansley
  • Patent number: 6596976
    Abstract: A method and system for pointing and stabilizing a device that needs to be pointed and stabilized with a desired direction, are disclosed, wherein current attitude measurement and attitude rate measurement of the device measured by an attitude producer, which includes an inertial measurement unit, and the desired direction information measured by a target coordinates producer are processed by a pointing controller to compute rotation commands to an actuator. An actuator rotates and stabilizes the device at the desired direction according to the rotation commands in the presence of disturbances and parametric uncertainties to account for the undesired vibration due to disturbances. A visual and voice device provide an operator with visualization and voice indication of the pointing and stabilization procedure of the device.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: July 22, 2003
    Assignee: American GNC Corporation
    Inventors: Ching-Fang Lin, Hiram McCall
  • Publication number: 20030107511
    Abstract: A radar-plow drillstring steering system comprises a steering plow and a measurements-while-drilling instrument for mounting just behind the drill bit and downhole motor of a drill rod. The instrument includes a radar system connected to upward-looking and downward-looking horn antennas and a dielectric-constant sensor. The steering plow includes four pressure pads radially distributed around the outside surface and their associated servo motors. A coordinated control of the pressure pads allows the steering plow to push the drillstring and drill bit up-down-left-right. The antennas and sensor are embedded in respective ones of the pressure pads and are used to electronically and non-invasively probe a coal seam to locate its upper and lower boundary layers. The dielectric-constant sensor provides corrective data for the up and down distance measurements. Such measurements and data are radio communicated to the surface for tomographic processing and user display.
    Type: Application
    Filed: November 4, 2002
    Publication date: June 12, 2003
    Inventors: Larry G. Stolarczyk, Gerald L. Stolarczyk