| Patents for G01S 13 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified (37,701) |
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| 01/22/1991 | US4987413 Aircraft terrain warning system with configuration modified warning and improved mode switching |
| 01/22/1991 | CA2021867A1 Recursive system for image forming by means of a spotlight synthetic aperture radar |
| 01/16/1991 | EP0408263A2 Monopulse tracking apparatus and method of operating same |
| 01/16/1991 | EP0408237A2 Doppler control channel for a radar |
| 01/16/1991 | EP0408112A1 Pulse radar apparatus and pulse discrimination circuit suitable for incorporation in a pulse radar apparatus |
| 01/15/1991 | US4985705 Method and apparatus for compiling and evaluating local traffic data |
| 01/15/1991 | US4985704 Processing parameter generator for synthetic aperture radar |
| 01/10/1991 | DE3920642A1 Two=phase control system for independently operating vehicle - uses transponder echo beacon to calculate aircraft, missiles or vehicle position reactive to target or destination |
| 01/09/1991 | EP0407146A2 Improved hybrid directional coupler for a radar system |
| 01/09/1991 | EP0406879A2 Method for extracting movement errors of a carrier transporting a coherent imaging radar system from radar raw data and device for carrying out this method |
| 01/09/1991 | EP0406878A2 Near-end echo attenuation device |
| 01/09/1991 | EP0406877A2 Method for extracting movement errors of a carrier transporting a coherent imaging radar system from radar raw data and device for carrying out this method |
| 01/09/1991 | EP0406522A2 Synthetic aperture radar based on rotating antennas |
| 01/09/1991 | EP0406365A1 Digital range correlator. |
| 01/08/1991 | US4983979 Radar detection of targets at short and long range |
| 01/08/1991 | US4983978 Multi-frequency comb generator for radar and the like |
| 01/08/1991 | US4983977 Architecture for monopulse active aperture arrays |
| 01/08/1991 | US4983976 Signal transmission system and method |
| 01/08/1991 | US4983970 Method and apparatus for digital phased array imaging |
| 01/08/1991 | CA2020469A1 Doppler control channel for a radar |
| 01/07/1991 | CA2020573A1 Hybrid directional coupler for a radar system |
| 01/02/1991 | EP0405764A1 Conversion of bias strip in a frequency-dividing transponder tag into a tripole bar magnet to deactivate the tag |
| 01/02/1991 | EP0405430A2 Air traffic display apparatus |
| 01/01/1991 | US4982195 Servo control with self calibrating preset |
| 01/01/1991 | US4982150 Spectral estimation utilizing an autocorrelation-based minimum free energy method |
| 01/01/1991 | US4981158 Non-contact control |
| 12/31/1990 | CA2018267A1 Conversion of bias strip in a frequency-dividing-transponder tag into a tripole bar magnet to deactivate the tag |
| 12/31/1990 | CA2018006A1 Inside/out perspective format for situation awareness displays |
| 12/31/1990 | CA2017331A1 Three-dimensional perspective plan-view format for situation awareness displays |
| 12/27/1990 | WO1990016000A1 Trajectory measurement of projectiles |
| 12/27/1990 | EP0404148A1 Method of transmitting messages with predetermined message duration from batteryless transponders to interrogation devices |
| 12/27/1990 | EP0403954A2 Clear track signalling device for railways |
| 12/27/1990 | EP0334897A4 Rotor recognition system |
| 12/25/1990 | US4980925 Monopulse first detector array |
| 12/25/1990 | US4980690 Bistatic radar seeker with range gating |
| 12/25/1990 | US4980689 Radar transponder |
| 12/25/1990 | US4980683 Aircraft instrument systems |
| 12/25/1990 | US4980633 Method and apparatus for measuring a vehicle's own speed by the Doppler radar principle |
| 12/19/1990 | EP0403085A2 Responsive simultaneous frequency agile radar |
| 12/18/1990 | US4979137 Air traffic control training system |
| 12/18/1990 | US4978961 Synthetic aperture radar with dead-ahead beam sharpening capability |
| 12/18/1990 | US4978960 Method and system for real aperture radar ground mapping |
| 12/18/1990 | US4978945 Alarm suppressing system in aircraft collision avoidance system |
| 12/18/1990 | CA1278077C Signal processor for synthetic aperture radars, particularly suitable for parallel computation |
| 12/13/1990 | WO1990015343A1 A system for detection, localization and classification of target objects |
| 12/13/1990 | WO1990015334A1 Winds aloft estimation through radar observation of aircraft |
| 12/13/1990 | DE3919091A1 Alarm arrangement with signal device generating signal when required - i.e. when distance between warning and monitoring device exceeds threshold value |
| 12/12/1990 | EP0402345A2 Speed and direction monitor for motor vehicles |
| 12/12/1990 | EP0401327A1 Fiber optic radar guided missile system. |
| 12/12/1990 | CN1010805B Single antenna, multipolarization, frequency modulated continuous-wave radar |
| 12/11/1990 | US4977604 Method and apparatus for processing sampled data signals by utilizing preconvolved quantized vectors |
| 12/11/1990 | US4977405 Programmable if clutter canceller |
| 12/11/1990 | CA1277749C High resolution imaging doppler interferometer |
| 12/11/1990 | CA1277748C2 Identification tag for rapid inventory data acquisition system |
| 12/06/1990 | DE4016959A1 Personnel location system for underground mine |
| 12/06/1990 | DE3918058A1 Missile bearing and altitude determination appts. for guidance system - uses on board radar equipment for measurements coupled with vector analysis for calculations |
| 12/06/1990 | DE3917670A1 Defence appts. from missile duplex radio transmitters and receivers - uses Doppler detection techniques to switch off radio transmitter for short periods |
| 12/05/1990 | EP0400489A2 Locating system, in particular for underground working |
| 12/04/1990 | US4975968 Timed dielectrometry surveillance method and apparatus |
| 12/04/1990 | US4975912 Brackish-water wire detector |
| 12/04/1990 | US4975708 Time domain electronic antenna beam shaping |
| 12/04/1990 | US4975706 Radar system |
| 12/04/1990 | US4975705 Target detector |
| 12/04/1990 | US4975704 Method for detecting surface motions and mapping small terrestrial or planetary surface deformations with synthetic aperture radar |
| 12/04/1990 | US4975703 High resolution short range radar |
| 12/04/1990 | CA1277417C Transponder antenna |
| 12/02/1990 | CA2018109A1 Locator system, in particular for underground mining |
| 11/29/1990 | WO1990014603A1 Process and device for determining the dynamic profile of an object |
| 11/29/1990 | WO1990013076A3 A detection system for locating aircraft |
| 11/29/1990 | WO1990010200A3 Identification system using hertzian waves, consisting of an interrogation station and a responder unit |
| 11/27/1990 | US4973968 Radar system for determining first time around targets from multiple time around targets |
| 11/27/1990 | US4973967 Radioaltimeter type of detector and a proximity fuse equipped with such a detector |
| 11/27/1990 | US4973966 Apparatus for determining the speed of motion of slowly moving objects |
| 11/27/1990 | US4973964 Method for orienting a radar installation against a target |
| 11/22/1990 | DE3916500A1 Verfahren zur ermittlung des bewegungsablaufes eines gegenstandes, insbesondere eines gegenstandes in einem raum Method for determining the sequence of motion of an object, in particular of an object in a space |
| 11/20/1990 | US4972441 Enhanced pulse time-of-arrival detector |
| 11/20/1990 | US4972194 Method and device for compensating for the speed of clutter in a coherent doppler radar with variable blind speed |
| 11/20/1990 | US4972192 Constant amplitude doppler producing radar reflector |
| 11/20/1990 | US4971266 Guiding method and on-board guidance system for a flying body |
| 11/15/1990 | WO1990013828A1 Introduction system for locating compatible persons |
| 11/15/1990 | DE3915178A1 Radar signal processing with improved centre position location - using cellular detection region and summation of vector-pulse height products |
| 11/14/1990 | EP0397527A2 Stagger compensated moving target detector |
| 11/14/1990 | EP0397221A2 The processing of reflected signals |
| 11/14/1990 | EP0396668A1 Radar system for determining angular position utilizing a linear phased array antenna |
| 11/14/1990 | EP0396662A1 Adaptive waveform radar. |
| 11/14/1990 | EP0396611A1 Vehicular anticollision radar system. |
| 11/13/1990 | US4970519 Continuously transmitting and receiving radar |
| 11/13/1990 | US4970518 Air traffic control radar beacon system multipath reduction apparatus and method |
| 11/13/1990 | US4970517 Microwave sensing |
| 11/13/1990 | CA1276273C Method of motion compensation in synthetic aperture radar target imaging and a system for performing the method |
| 11/12/1990 | CA2016634A1 Stagger compensated moving target detector |
| 11/07/1990 | EP0396071A2 Apparatus and method for an aircraft display exhibiting vertical speed, traffic awareness, and collision resolution advisories |
| 11/07/1990 | EP0396070A2 Curved path waypoint transition for aircraft |
| 11/07/1990 | EP0395863A2 Aperture synthesized radiometer using digital beamforming techniques |
| 11/07/1990 | EP0395682A1 Closed loop velocity/altitude sensor for fm-cw doppler radars. |
| 11/06/1990 | US4968980 Electronic proximity fuse responsive to two signals |
| 11/06/1990 | US4968972 Conversion of bias strip in a frequency-dividing-transponder tag into a tripole bar magnet to deactivate the tag |
| 11/06/1990 | US4968968 Transmitter phase and amplitude correction for linear FM systems |
| 11/06/1990 | US4968967 Continuously transmitting and receiving radar |
| 11/06/1990 | US4967751 Apparatus and method for monitoring the waveform of cyclic movement within the thorax of an individual |