Radar Patents (Class 434/2)
  • Patent number: 9524701
    Abstract: A display apparatus and an image processing method thereof are provided. The method includes displaying an image on a display screen, acquiring weather information through at least one of a sensor and an external server, and providing an image effect corresponding to the weather information to the displayed image by processing the image based on the acquired weather information.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: December 20, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-hye Song, Gyeong-cheol Jang, Jong-keun Cho
  • Patent number: 9514660
    Abstract: A training apparatus includes a server and a controller. The server is configured to send and receive messages on at least one network, to receive messages at a plurality of publisher ports, and to send messages to a plurality of subscriber ports. The controller operates the server sends a first message to a training system destination that is initially configured to receive messages on a first port. Receipt and processing of the first message causes the training system destination to subsequently receive messages on a second port. The server is configured to receive subsequent messages on the first port intended for the training system destination and to pass modified or unmodified messages to the second port. The controller determines at least one of the flow, format, content, and routing of messages received on the first port and passed to the second port based on a training scenario.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: December 6, 2016
    Assignee: The Boeing Company
    Inventor: Gary J. Lammers
  • Patent number: 9164170
    Abstract: Systems and methods that utilize a terrain database to find the elevation of the ground in the area of ground-mapping illumination to optimize the tilt of a ground-mapping antenna. An exemplary system located on a host aircraft includes a memory that stores terrain elevation data and a component that provides height, position, and orientation information of the host aircraft. A processor receives the height, the position, and the orientation information; defines a desired terrain area to be mapped, based on the received information; retrieves terrain elevation data from the memory, based on the desired terrain area to be mapped; and calculates at least one tilt angle for a ground-mapping radar function based on the retrieved terrain height value and the aircraft's height, position, and orientation information. One or more actuators is commanded to move an antenna based on the calculated at least one tilt angle.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: October 20, 2015
    Assignee: Honeywell International Inc.
    Inventors: Robert Jensen, Camilo Mandujano, Jeffrey A Hester
  • Patent number: 9076326
    Abstract: Methods and apparatus are provided for traffic prioritization of surrounding air traffic for display onboard an aircraft. The apparatus includes a traffic data source configured to supply surrounding traffic data. The apparatus includes a traffic control module coupled to receive user selection data from the user input device and the surrounding traffic data. The traffic control module can be configured to determine a prioritization zone for prioritizing the surrounding air traffic to identify air traffic preceding the aircraft based on the user selection data, the range and the vertical speed of the surrounding air traffic, and set first traffic data that includes the surrounding air traffic within the prioritization zone listed by priority and second traffic data that includes the surrounding air traffic outside of the prioritization zone listed in received sequence. The apparatus displays a graphical user interface that includes the first traffic and the second traffic data.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: July 7, 2015
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Sanjib Kumar Maji, Satyanarayan Kar, Jitender Kumar Agarwal, Sandeep Chakraborty
  • Patent number: 8427363
    Abstract: In one aspect, a method includes tagging a track as a live track if a tagging statistic is greater than a tagging statistic threshold and tagging the track as a virtual track if the tagging statistic is less than the tagging statistic threshold. In another aspect, an article includes a machine-readable medium that stores executable instructions to determine whether a track is a live track or a virtual track. The instructions causing a machine to tag a track as a live track if a tagging statistic is greater than a tagging statistic threshold and tag the track as a virtual track if the tagging statistic is less than the tagging statistic threshold. In a further aspect, an apparatus includes circuitry to tag a track as a live track if a tagging statistic is greater than a tagging statistic threshold and tag the track as a virtual track if the tagging statistic is less than the tagging statistic threshold.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: April 23, 2013
    Assignee: Raytheon Company
    Inventors: Joel E. Lamendola, Maxim Raykin, Stanley J. Poreda
  • Patent number: 8363048
    Abstract: A method for visualizing data includes the step of providing a virtual flight visualization of image data representing a non-landscape object.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: January 29, 2013
    Assignee: General Electric Company
    Inventor: David Thomas Gering
  • Patent number: 8265542
    Abstract: A low-cost training and synthetic visualization system and method directed to improving an individual's airborne performance in general aviation, skydiving, and other aerial applications. The system is comprised of a self-contained mobile sensor and data storage device for recording the travel path, orientation, and forces acting upon an object as it moves through space, a desktop graphics software program for creating a playback of the recorded data on a three-dimensional representation of the environment through which the object moved, a means of linking the sensor and data storage device to the software program for the purpose of exchanging information, and a centralized data storage and retrieval system designed to accept, assimilate and redistribute the recorded data.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: September 11, 2012
    Assignee: Appareo Systems, LLC
    Inventors: Barry Douglas Batcheller, Tyler Chris Ohlsen
  • Patent number: 8242948
    Abstract: Methods and systems for generating a raster file in a raster file format for use in a Digital Radar Landmass Simulator (DRLMS). A file in the raster file format defines synthetic aperture radar (SAR) scenery for use in generating a runtime database. The raster file contains a plurality of texture elements (texels) that define the SAR scenery. Each texel may have a material identifier, which identifies a material composition of a respective surface region of the SAR scenery; a surface height identifier, which identifies a surface height with respect to a bare earth elevation (BEE) value of the respective surface region; and a BEE identifier, which identifies a BEE of the respective surface region. A method for determining surface height identifiers based on digital surface model (DSM) elevation data is also provided.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: August 14, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: John Burky, Sharon Shahan
  • Patent number: 8081921
    Abstract: A low-cost training and synthetic visualization system and method directed to improving an individual's airborne performance in general aviation, skydiving, and other aerial applications. The system is comprised of a self-contained mobile sensor and data storage device for recording the travel path, orientation, and forces acting upon an object as it moves through space, a desktop graphics software program for creating a playback of the recorded data on a three-dimensional representation of the environment through which the object moved, a means of linking the sensor and data storage device to the software program for the purpose of exchanging information, and a centralized data storage and retrieval system designed to accept, assimilate and redistribute the recorded data.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: December 20, 2011
    Assignee: Appareo Systems, LLC
    Inventors: Barry Douglas Batcheller, Tyler Chris Ohlsen
  • Patent number: 8033928
    Abstract: The present invention relates to method and apparatus adapted for use with an assistive energy type golf club which is safe to use, inconspicuous, and able to release sufficient assistive energy at the optimum time during a golf swing to add prescribed incremental velocity to a golf ball.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: October 11, 2011
    Inventor: Donald R. Cage
  • Patent number: 7963859
    Abstract: Apparatus and a method that enables an assistive energy type golf club to sense the approach of the club face toward a golf ball, and to trigger the release of the assistive energy at the optimum time to achieve the desired golf ball velocity and distance.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: June 21, 2011
    Inventor: Donald R. Cage
  • Patent number: 7905769
    Abstract: The present invention provides an integrated game with five subsystems: (i) electronic spell-casting system, (ii) card game system, (iii) user-created card system, (iv) system for replacing the use of dice and/or random number generation; and (v) board game system. Spell-casting system provides a physical input mechanism, e.g., sensor-equipped “magic wand”, and a verbal input mechanism which together trigger a spell. Cards form formations affecting their powers and are marked as “spent” by being placed under another card. Users create their own cards through a Web-accessible site. Random number (generated by computer or dice) usage is replaced by “challenges,” i.e., player-performed tasks. Chess pieces follow standard rules but are deployed one-by-one, as are squares of the chess board. Licensing information is available through www.inventerprise.com.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: March 15, 2011
    Inventor: Shelton E. Harrison, Jr.
  • Patent number: 7848698
    Abstract: A low-cost training and synthetic visualization system and method directed to improving an individual's airborne performance in general aviation, skydiving, and other aerial applications. The system is comprised of a self-contained mobile sensor and data storage device for recording the travel path, orientation, and forces acting upon an object as it moves through space, a desktop graphics software program for creating a playback of the recorded data on a three-dimensional representation of the environment through which the object moved, a means of linking the sensor and data storage device to the software program for the purpose of exchanging information, and a centralized data storage and retrieval system designed to accept, assimilate and redistribute the recorded data.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: December 7, 2010
    Assignee: Appareo Systems LLC
    Inventors: Barry Douglas Batcheller, Tyler Chris Ohlsen
  • Patent number: 7821442
    Abstract: The present invention provides a method and system of analyzing radar information of a radar system. According to certain embodiments of the invention, the method comprises: providing radar information including at least a portion modified in response to an EWE (electronic-warfare) action; obtaining position data corresponding to at least a position of a target associated with the EW action with respect to the radar system; and analyzing the radar information for comparing it with the position data, thereby allowing to determine at least one effect of the EW action on the radar information.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: October 26, 2010
    Assignee: Israel Aerospace Industries, Ltd.
    Inventor: Jacob Ilan
  • Patent number: 7768446
    Abstract: The invention discloses a simulating measurement apparatus. The simulating measurement apparatus comprises a storing module, a controlling module, and a simulating module. The storing module is used for storing simulating parameter information. The simulating parameter information comprises at least one emitting simulating parameter, at least one receiving simulating parameter, and a radio beam channel transmitting simulating parameter. The controlling module generates a controlling signal according to the simulating parameter information. The simulating module generates a simulating measurement result of radio beams transmitted in the space between an emitting antenna and a receiving antenna by simulating the transmitting behavior of a plurality of RF signals according to the controlling signal.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: August 3, 2010
    Assignee: Chung-Shan Institute of Science and Technology, Armaments Bureau, Ministry of National Defense
    Inventors: Chunn-Yenn Lin, Li-Kuang Chen, Joseph D. S. Deng, Hsien-Kwei Ho
  • Patent number: 7731602
    Abstract: Apparatus and a method that enables an assistive energy type golf club to sense the approach of the club face toward a golf ball, and to trigger the release of the assistive energy at the optimum time to achieve the desired golf ball velocity and distance.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: June 8, 2010
    Inventor: Donald R. Cage
  • Patent number: 7018482
    Abstract: A method of manufacturing electronic devices, in particular, but not exclusively, semiconductor devices, and apparatus for carrying out such a method, in which method wafers 1, which are provided at a surface 2 with a material 3 to be removed, are subjected, while being divided into successive batches, to a wet treatment in a bath 4 containing a solution 5 of an active component in a solvent. The successive batches of wafers 1 are immersed in the solution 5 at first time intervals during the wet treatment of the successive batches, which first time intervals each consist of a processing period during which the material 3 is removed from the surface 2 of the wafers 1, thereby forming ionic components, and a waiting period following the removal of the wafers 1 from the bath 4 at the end of the processing period.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: March 28, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Marcellinus J. H. J. Geomini
  • Patent number: 7020434
    Abstract: An exemplary embodiment of the invention relates to a computer-based program and system for displaying visually realistic raw radar signals. The computer program includes a RADAR display fade algorithm. The algorithm includes alpha blending and texture mapping for producing a slow fade. Use of two buffers and transfer of data between the buffers to produce a smooth update of the visual display while the sweep of the RADAR ray advances and new or updated RADAR contacts are displayed.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: March 28, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Lance A. Legan
  • Patent number: 6950057
    Abstract: A complex radar target emitter having independent control of three radio frequency (RF) radiation field characteristics, the radiation field characteristics being the real and imaginary components of the complex amplitude of the radiation field, the spatial derivative of the real and imaginary components of the complex amplitude in one of two orthogonal planes, and the spatial derivative of the real and imaginary components of the complex amplitude in the other of the two orthogonal planes.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: September 27, 2005
    Assignee: MBDA UK Limited
    Inventors: Paul Mussell, Malcolm E Fletcher
  • Patent number: 6492939
    Abstract: A radar target with delayed reply means. The radar target contains devices for: (a) receiving a radar signal which has a frequency of from about 0.5 to about 94 gigahertz, (b) phase coherently amplitude modulating a continuous wave light emission with the radar signal with the frequency of from about 1 to about 94 gigahertz, (c) delaying an amplitude modulated light pulse for at least about one radar pulse width, (d) detecting the delayed modulated amplitude modulated light pulse, (e) converting a detected amplitude modulated light pulse into a converted radio frequency pulse, (f) modulating the converted radio frequency pulse, thereby producing a delayed modulated radio frequency pulse, and (g) transmitting the delayed modulated radio frequency pulse.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: December 10, 2002
    Inventors: Duane G. Fredericks, James N. Devlin
  • Patent number: 6346909
    Abstract: A system is disclosed for generating simulated radar targets that eliminates the necessity for large outdoor test ranges and is relatively low in cost. The simulated radar target generating system provides complex targets of given simulated dimensions at given simulated distances when stimulated by signals emitted by the radar sensor in the sensor's operational frequency. The dimensions are simulated by the use of multi-tap delay device while the distances (or, range) are simulated by routing the signal, in the form of light, through a fiber optic delay of a desired length. This system, which costs less than $50 thousand, can be located as close as eight feet to the sensor under test.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: February 12, 2002
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: James B. Johnson, Jr., Michael P. Connolly
  • Patent number: 6298318
    Abstract: A real-time IMU emulation method for GNC method includes the step of receiving real-time flight data from a 6DOF flight simulator and generating simulated IMU electronic signals according to the IMU measurement modules and error modules defined by the user, and injecting said simulated IMU electronic signals into an on-board GNC system which causes the on-board GNC system into “thinking” that the vehicle is really moving. The on-board GNC system which is installed on the vehicle is motionless during the emulation test, so that the testing can be carried out in a laboratory or in an anechoic chamber facility and the IMU emulation can achieve the easy, effective, and least intrusive injection of emulated IMU signals into the INS computer. The present invention has features supporting the final integration of a developmental Guidance, Navigation, or Control (GNC) system installed into a vehicle. It assures testers that GNC avionics on-board vehicle work properly before and during a flight test.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: October 2, 2001
    Inventor: Ching-Fang Lin
  • Patent number: 6150976
    Abstract: A digital radar landmass simulator (DRLMS) used for stimulation testing pulse radars, wherein the DRLMS operates by synthesizing time-overlapping chirp waveforms using finite impulse response filters. The DRLMS, thus, effectively generates many overlapping complex pulse signals from many radar reflectors representing a semi-infinite continuum of closely spaced targets. The DRLMS also allows the insertion/injection of the effects of Doppler shift and jamming into the synthesized modulated signal.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: November 21, 2000
    Assignee: AAI Corporation
    Inventor: James R. Cooley
  • Patent number: 6067041
    Abstract: A moving target simulator for testing a radar system has a radio frequency receiver, a digital radio frequency memory in electrical communication with the radio frequency receiver for storing a signal received thereby, a digital delay circuit in electrical communication with the digital radio frequency memory for providing a time delay between reception and transmission of the radio frequency signal, an amplitude modulation circuit in electrical communication with the digital radio frequency memory for modulating an amplitude of the radio frequency signal, a Doppler modulation circuit in electrical communication with the digital radio frequency memory for providing a Doppler-modulated signal, and a radio frequency transmitter for transmitting the radio frequency signal after it has been delayed, amplitude-modulated, and/or Doppler-modulated.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: May 23, 2000
    Assignee: Northrop Grumman Corporation
    Inventors: Stephen G. Kaiser, Stuart J. Collar, Mark D. Hischke
  • Patent number: 6037897
    Abstract: A moving target simulator system for pulse Doppler radar includes a processor for processing received radar signal and transforming the signal into patterned pulses before subjecting the patterned pulses to an 180 degree phase-shift by a phase-shifter. The system also includes a reference signal provided by a corner reflector located in proximity of the simulator. The reference signal and a phase-shifted signal from the simulator are processed by the radar equipped with a phase corrector circuitry to correct a phase drift problem associated with the use of a small antenna with the simulator.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: March 14, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Otto E. Rittenbach
  • Patent number: 5885086
    Abstract: An interactive video delivery system (IVDS) is used in conjunction with sware for training purposes. The IVDS emulates a tactical display system sonar console by using software to provide its input information. The tactical display system sonar console uses actual sonar signals detected by sonar array systems. The IVDS training aid comprises an emulated AN/UYQ-21 console having a computer and an interactive videodisc system. The computer provides the necessary graphics processing for emulation of the tactical displays.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: March 23, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Merrill Gerber, Cameron Johnson
  • Patent number: 5807109
    Abstract: An airborne avionics simulator system integrated into a low-cost host aircraft to simulate the avionics of a high performance aircraft. The simulated avionics system includes for example radar, radar warning, chaff, radar locks, weapons systems, electronic defensive systems, and navigation systems. The airborne avionics simulator system can be programmed with various scenarios, such as air-to-air or air-to-ground combat, navigational situations, aircraft malfunctions, and general training routines. A multi-function display provides for simulating the avionics of various high performance aircraft. Additionally, the cockpit of the host aircraft may be modified to simulate the control stick, throttle assemblies and other aspects of a particular high performance aircraft.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: September 15, 1998
    Assignee: B.V.R. Technologies Ltd.
    Inventors: Aviv Tzidon, Menachem Polak
  • Patent number: 5680138
    Abstract: In a simulated synthetic aperture radar SAR, a terrain elevation model is provided. A phase component of the simulated SAR data is computed by determining a distance between incremental terrain points and a simulated SAR platform modulo the wavelength. The amplitude component is computed in the following manner. The terrain elevation model is rotated about a vertical axis to present terrain strips extending perpendicular to the assumed direction of travel of the SAR platform. Points distributed along the terrain strips are projected into an illumination plane perpendicular to the assumed SAR signal and into an image plane perpendicular to the illumination plane.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: October 21, 1997
    Assignee: Lockheed Martin Corporation
    Inventor: Mark D. Pritt
  • Patent number: 5630718
    Abstract: A weather simulation system that generates and distributes weather data to simulation subsystems for the real time simulation of weather conditions, from three-dimensional real world data. A real world database is accessed to obtain a dataspace of weather data elements, each having a set of various weather-related parameters. For "out-the-window" weather displays, these data elements are preprocessed to obtain color and transparency values for each data element. The preprocessed data elements are further processed to obtain a prioritized display list of those data elements that are in a field of view. Each data element in this list is assigned a graphics primitive, whose alignment is determined by a wind vector of that data element. Pixel values are assigned to the graphics primitives, using color and transparency values of the associated data elements.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: May 20, 1997
    Assignee: Southwest Research Institute
    Inventors: Bruce C. Montag, Dennis J. Wenzel, Richard P. Weyrauch
  • Patent number: 5606500
    Abstract: An integrated aircraft survivability equipment state machine. Aircraft survivability sensors provide aircraft survivability states that are routed to a finite state machine. Data processing, data generation, data representation, queueing tactical information and initiation of aircraft survivability counter measures are controlled by the state oriented approach. Systems state can be altered based on mission defined variables. Counter measures can be initiated based on correlated threat data and other functions such as failure recording and threat database generation functions. All individual aircraft survivability subsystems are integrated and controlled by the state machine. The state machine manages the ASE subsystem power as far as built-in testing and controls for the integrated ASE system. Overall threat data presentation is controlled and driven by the system state.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: February 25, 1997
    Assignee: Honeywell Inc.
    Inventor: My Tran
  • Patent number: 5598359
    Abstract: A weather effects generator that generates weather data based on real-world weather data, and provides this data to a host simulator. The type of data provided and the spatial distribution of the data depend on the type of simulation. A real world database is accessed to obtain a dataspace of weather data elements, each having a location parameter and various weather-related parameters. For visual display simulators, the data elements are preprocessed to obtain color, transparency, and texture values for each data element. The preprocessed data elements are further processed to obtain a prioritized display list of those data elements that correspond to field-of-view data provided by the simulator. Each data element in this list is assigned a graphics primitive that can be rasterized in accordance with the color and transparency values. Simulators other than visual display simulators provide location data and receive data representing the weather effects at that location.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: January 28, 1997
    Assignee: Southwest Research Institute
    Inventors: Bruce C. Montag, Dennis J. Wenzel, Richard P. Weyrauch
  • Patent number: 5583509
    Abstract: A communications electronic warfare trainer that includes apparatus and a thod by which a training umpire can control the localized jamming of a victim communications system. A control signal containing an address and duration of jamming is generated and transmitted using the same frequency as the victim communications system. The control signal is processed by a Receiver Unit collocated with the victim communications system to determine if the control signal address matches the address of the victim communications system. If an address match is found, a jamming signal is produced for the specified duration causing disruption of the normal operation of the victim communications system.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: December 10, 1996
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Mark W. Hynes, James L. Cole, Garrett W. Conover, Michael J. O'Connor
  • Patent number: 5549477
    Abstract: An in-flight simulator for an integrated aircraft survivability equipment system controlling radar warning receiver and a radar jammer with countermeasures control provides a training module which emulates the existence of airborne threats. The airborne threats are provided in real time as if they were detected by a threat detection system such as a radar warning receiver or a radar jammer. A list of threats is provided for either a radar warning receiver or pulse radar jammer, a continuous radar jammer, an RF/IR missile approach detector or a laser that threat on a display, includes that threat in a candidate list and executes various threat proximity algorithms with the candidate list. The invention determines whether the threat is within the range hidden by terrain or beyond the horizon. The threat simulator performs aircraft survivability equipment sensor model simulation. Threats are also prioritized.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: August 27, 1996
    Assignee: Honeywell Inc.
    Inventors: My Tran, John E. Rasinski
  • Patent number: 5508928
    Abstract: Aircraft survivability system state management is based on system mode, time, altitude, aircraft position, reference radius, and manual aircraft survivability equipment configuration select. The system mode is used with a segment number to begin system configuration sequencing of a segment pointer. A mission aircraft survivability system configuration plan comprises a number of segments of a mission plan. Each segment contains information such as the time, altitude and position for each segment. The segment is displayed in an active configuration and a next configuration on an aircraft survivability equipment display. When the aircraft enters a detection window the segment pointer is updated by an aircraft survivability system mode control processor. The system may be placed in either automatic mode or manual mode.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: April 16, 1996
    Assignee: Honeywell, Inc.
    Inventor: My Tran
  • Patent number: 5480305
    Abstract: A weather simulation system that generates and distributes weather data to simulation subsystems for the real time simulation of weather conditions, from three-dimensional real world data. A real world database is accessed to obtain a dataspace of weather data elements, each having a set of various weather-related parameters. For "out-the-window" weather displays, these data elements are preprocessed to obtain color and transparency values for each data element. The preprocessed data elements are further processed to obtain a prioritized display list of those data elements that are in a field of view. Each data element in this list is assigned a graphics primitive, whose alignment is determined by a wind vector of that data element. Pixel values are assigned to the graphics primitives, using color and transparency values of the associated data elements.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: January 2, 1996
    Assignee: Southwest Research Institute
    Inventors: Bruce C. Montag, Dennis J. Wenzel, Richard P. Weyrauch
  • Patent number: 5461571
    Abstract: A complementary threat display where threat data provided by a pulsed radar jammer and a continuous wave radar jammer are correlated with the threat data provided by a radar warning receiver. The correlation identifies common threats seen by both sensors and the current jamming status of some threats. Threats that are unique to the pulsed radar jammer are displayed as complementary threats.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: October 24, 1995
    Assignee: Honeywell Inc.
    Inventor: My Tran
  • Patent number: 5431568
    Abstract: A radar target generator is disclosed which is not merely a simulator, generating video information for viewing by an operator, but is designed to be used in conjunction with an operating radar system, actually producing high fidelity radar targets, rather than targets that merely look like radar targets. Thus, it may be used for training of radar operators, as well as for calibrating, maintaining, and evaluating multiple types of radar systems. The system includes a first tap for sampling a portion of the radar signal traveling through a transmission line and redirecting that sample into the radar target generator. There, a central processor applies a target signature component to the sampled radar signal portion, following which a second tap returns the modified radar signal portion to a return radar signal traveling thorough a second transmission line.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: July 11, 1995
    Assignee: McDonnell Douglas Corporation
    Inventors: Warren T. Fey, Philip A. Hicks
  • Patent number: 5409379
    Abstract: A weather simulation system that generates and distributes weather data to simulation subsystems for the real time simulation of weather conditions, from three-dimensional real world data. A real world database is accessed to obtain a dataspace of weather data elements, each having a set of various weather-related parameters. For "out-the-window" weather displays, these data elements are preprocessed to obtain color and transparency values for each data element. The preprocessed data elements are further processed to obtain a prioritized display list of those data elements that are in a field of view. Each data element in this list is assigned a graphics primitive, whose alignment is determined by a wind vector of that data element. Pixel values are assigned to the graphics primitives, using color and transparency values of the associated data elements.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: April 25, 1995
    Assignee: Southwest Research Institute
    Inventors: Bruce C. Montag, Dennis J. Wenzel, Richard P. Weyrauch
  • Patent number: 5353030
    Abstract: A simple and inexpensive method for using aerial or satellite photographs of an area of terrain to form images to be used in the simulation of a series of synthetic aperture radar (SAR) images of the terrain as would be observed by a down-looking SAR mounted on an aircraft over the terrain. Scanned and digitized photographic pixels are formed and converted into radar image pixels and combined into composite images as required for SAR simulation. Terrain elevation data are assembled, correlated with the radar image pixels and converted to elevation images. These images are stored on media accessible by aircraft simulators and correlated with simulated aircraft position and altitude data to form composite images with obscured terrain features for display as darkened areas closely duplicating actual SAR images when displayed in an aircraft simulator.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: October 4, 1994
    Assignee: Science Applications International Corporation
    Inventors: Robert D. Koch, Harold W. Dean, Roger L. Overdorf
  • Patent number: 5341146
    Abstract: A covert remote electronic warfare simulator is disclosed which includes eiving and signal processing apparatus for incorporating various electronic signal parameters and variables representing propagation effects from the environment borne by a low power control signal for redirection from a "victim" antenna into a "victim" receiving apparatus. The invention includes methods and apparatus for the subsequent replay of stored data representing the resulting signal(s) for data collection and detailed analysis in a laboratory setting. The simulator apparatus is interconnected between a "victim" receiving antenna and a "victim" transceiver to provide a simulated jamming signal.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: August 23, 1994
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Michael D. Vennum, Mark Hynes, Gary Conover
  • Patent number: 5294934
    Abstract: A phase measurement circuit of a phased array antenna having both transmitting and receiving functions includes a plurality of antenna elements arranged in a line or on a plain; phase shifters disposed corresponding to the antenna elements, respectively, for shifting phases of signals to form a beam in a desired direction by changing the phase value; a control circuit for controlling the phase shift quantity of the phase shifter; a test antenna for receiving electric wave of a transmission frequency band from the phased array antenna and transmitting a test signal for measuring an excitation phase to each element of the phased array antenna; and a test translator for converting a frequency of the signal of the transmission frequency band received by the test antenna to that of the signal of a reception frequency band and outputting it as a test signal to the test antenna.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: March 15, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Soichi Matsumoto
  • Patent number: 5234506
    Abstract: The present invention relates to environmentally safe aqueous cleaning compositions for cleaning electronic circuit assemblies, such as printed circuit or printed wiring boards, during their fabrication. Alkali metal carbonate and bicarbonate salts are utilized with an alkali metal silicate to achieve a variety of objectives, among which are the removal of solder flux, oils, waxes, and greasy substances, adhesives and other residues as well as provide anti-corrosion protection and metal brightening.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: August 10, 1993
    Assignee: Church & Dwight Co., Inc.
    Inventors: Anthony E. Winston, Francis R. Cala, Alfredo Vinci, M. Stephen LaJoie
  • Patent number: 5192208
    Abstract: A visual simulation system in combination with a radar simulation system may be used for generating full radar or synthetic aperture radar (SAR) radar images from a common data base that are correlated to video images of the visual system while facilitating radar image processing. The combination of visual and radar simulation systems in accordance with the present invention obviates the need for a separate stand-alone radar processor and dedicated radar data base. Simulated electronic tactical map data may also be provided.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: March 9, 1993
    Assignee: General Electric Company
    Inventors: Robert L. Ferguson, John R. Ellis, Kenneth B. Donovan
  • Patent number: 5160264
    Abstract: A programmable radar target simulator provides microwave signals for testing a missile that is otherwise controlled by such signals when it is deployed. The simulator has the capability for initiating suitable microwave signals at the proper power levels in the fully automatic, semi-automatic, or fully manual modes. A control section and an IF section accept digital commands from an external computer or manual control from switches and thumbwheels on the front panel of the simulator to provide for the automatic and manual control signals respectively. A frequency synthesizer section provides three frequency modulated IF signals and one amplitude modulated coding signal which respectively are fed to the IF section and to the control section. Doppler frequency shifts are extracted and representative signals are provided in both AC and DC forms to a microwave section.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: November 3, 1992
    Inventors: George A. Banura, Richard L. Noland
  • Patent number: 5138325
    Abstract: A simulated burst echo signal (artificial target), corresponding to a deld and conditioned version of an RF burst signal from an associated radar under test, is presented to the associated radar under test by coupling a portion of the RF burst signal into a shipboard sensor exerciser apparatus in which the present invention is employed to feed an attenuated facsimile of the RF burst signal into a phase-locked loop portion thereof. The phase-locked loop locks on to the attenuated facsimile of the RF burst signal and generates an error signal in response thereto. The error signal is then digitized and stored in an error storage unit portion where it is delayed for a predetermined time associated with the desired selected range of the artificial target.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: August 11, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: William J. Koury
  • Patent number: 5135397
    Abstract: Weather simulation is a modular addition to a digital radar landmass simulator (DRLMS). The DRLMS is a four channel system, i.e., culture, elevation, aspect and weather. All four channels are integrated to provide a simulated radar landmass simulation with weather. Implementation entails the full or partial occultation of terrain and targets by weather and vice versa. Weather mass is simulated in three dimensions; that is, it has a bottom and height. The weather mass is not made of simple geometric objects. Weather maps can be loaded into the system as weather patterns, and the weather patterns can be expanded, rotated and translated. In addition, the weather channel can be used to simulate chaff and jamming patterns.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: August 4, 1992
    Assignee: Hughes Aircraft Company
    Inventor: Craig S. Yen
  • Patent number: 5133663
    Abstract: A portable radar simulator which when connected to a transmitting means s as a magnetron generated microwave threat transmitter simulates up to 2048 pre-programmed radar signatures. The portable radar simulator comprises a replaceable Erasable Programmable Read Only Memory (EPROM) which will hold up to 2048 pre-programmed radar signatures. Selection of a particular radar threat to be simulated is entered by an operator via thumbwheel switches located on the front panel of the simulator. The portable radar simulator simulates such radar parameters as jitter, stagger, frequency hop, simple and complex scans, pulse repetition intervals and frequency pulse widths.
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: July 28, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Joseph A. Willingham, Robert A. Hedin
  • Patent number: 5134412
    Abstract: A low cost simulator for training electronic warfare operators to recognize signatures of various emitters. The simulator consists of a card which can be plugged into an IBM PC or compatible computer. Through the computer, various characteristics of one, or a plurality of emitters are entered. The simulator, using an existing digital signal processing (DSP) chip generates a replica of a signal received by a radar system receiver from one, or a plurality of emitters.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: July 28, 1992
    Assignee: Raytheon Company
    Inventors: Behshad Baseghi, Mohammad Mazooji, Matt S. Skefich, Graham T. Hall
  • Patent number: 5117231
    Abstract: A synthesizer combines frequencies for multiple targets, accumulating the phase components separately and allowing the targets to change velocity separately. The amplitude of the simulated signal at the phase secified is generated using a method that combines coarse and fine angle components of the desired angle signal allowing small high speed memories to be used. A first ROM is addressed by high order bits of the phase component and a second ROM by the lower order bits. The outputs of the first and second ROM's are multiplied and then added to the output of the first ROM producing the amplitude of the desired phase. The system also allows the amplitude of the signal being synthesized to be modulated by multiplying the synthesized digital value by an amplitude modulator. The synthesized amplitudes for each frequency are combined. Digital zero order hold correction removes amplitude distortion from the output spectrum.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: May 26, 1992
    Assignee: Westinghouse Electric Corp.
    Inventor: John D. Yaron
  • Patent number: 5064376
    Abstract: A portable compact target motion simulation system, adapted to generate simulated target motion for displaying, tracking, and controlling a plurality of simulated targets on a display device for training purposes. The system is operable to generate pre-programmed and dynamic exercises, for training trainees in operating tracking devices, to develop trainee skill in analyzing and responding properly to target motion.The apparatus is totally programmable, and capable of providing targets in any matrix. It includes a target display generator, adapted to store, merge, and transmit timed data signals for driving a target-display device. It further includes a dynamic target motion generator, microprocessor-based, adapted to receive input data identifying the characteristics of particular operator-controlled targets and convert such data into dynamic target motion input data for driving the target display generator.
    Type: Grant
    Filed: April 1, 1983
    Date of Patent: November 12, 1991
    Assignee: Unisys Corporation
    Inventor: Ronald DeCrescent