| 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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| 09/12/1989 | US4866438 Traffic monitoring device |
| 09/07/1989 | DE3905709A1 Rangefinder |
| 09/05/1989 | US4864298 Driver alerting device |
| 09/05/1989 | US4864158 Rapid signal validity checking apparatus |
| 09/05/1989 | US4863123 Process and system for localizing a mobile unit which travels on a system of railroads |
| 08/30/1989 | EP0330388A2 High resolution short range radar |
| 08/30/1989 | EP0330273A1 A method and a device in connection with radar |
| 08/29/1989 | US4862180 Discrete source location by adaptive antenna techniques |
| 08/29/1989 | US4862177 Processor for discriminating between ground and moving targets |
| 08/29/1989 | US4862176 Identification of friend or foe (IFF) systems |
| 08/29/1989 | US4862160 Item identification tag for rapid inventory data acquisition system |
| 08/29/1989 | US4862061 Microwave proximity sensor |
| 08/24/1989 | WO1989007773A1 Method and apparatus for processing sampled data signals |
| 08/24/1989 | WO1989007744A1 System for correcting the trajectory of a missile |
| 08/23/1989 | EP0328836A2 Pseudo-passive universal communicator system |
| 08/23/1989 | EP0328621A1 Dual mode video tracker |
| 08/22/1989 | US4860216 Communication adaptive multi-sensor system |
| 08/22/1989 | US4860014 Doppler radar with multiphase modulation of transmitted and reflected signal |
| 08/17/1989 | DE3803893A1 Method for displaying radar images |
| 08/15/1989 | US4857935 RF circuit arrangement |
| 08/15/1989 | US4857893 Single chip transponder device |
| 08/15/1989 | CA1258536A1 Method and apparatus for combining waveforms |
| 08/09/1989 | EP0327447A1 Radio navigation system |
| 08/09/1989 | EP0326574A1 Head-mounted data display. |
| 08/09/1989 | EP0122609B1 Method and embodiment for controlling the transmitted energy of a cloud height measurement apparatus |
| 08/08/1989 | US4856100 Reply rate limiting |
| 08/08/1989 | US4855962 Method and system for locating and correcting the orientation of an autonomous mobile object and a non-autonomous mobile object |
| 08/08/1989 | US4855932 Three-dimensional electro-optical tracker |
| 08/08/1989 | US4855748 TCAS bearing estimation receiver using a 4 element antenna |
| 08/08/1989 | US4855747 Method of target imaging and identification |
| 08/02/1989 | EP0325837A2 Rapid signal validity checking apparatus |
| 08/01/1989 | US4853863 Device to measure the relative position and attitude of two bodies |
| 08/01/1989 | US4853839 Antenna position tracking apparatus and methods |
| 08/01/1989 | US4853705 Beam powered antenna |
| 08/01/1989 | US4853701 Pulse compression method employing space-coding, and its application to a radar |
| 08/01/1989 | US4853700 Indicating system for warning airspace or threatening aircraft in aircraft collision avoidance system |
| 08/01/1989 | US4853699 Method for cancelling azimuth ambiguity in a SAR receiver |
| 07/27/1989 | WO1989006808A1 Vehicular anticollision radar system |
| 07/26/1989 | EP0325539A1 Positioning system for a moving object |
| 07/26/1989 | EP0324897A1 Radar system with a digital expander |
| 07/25/1989 | US4851852 Decorrelation tolerant coherent radar altimeter |
| 07/25/1989 | US4851851 Method for measuring the distance and/or the relative velocity between two objects |
| 07/25/1989 | US4851850 Priority mapper for initiation of radar tracking of projectiles |
| 07/25/1989 | US4851849 Interrogation-answering system with a primary radar |
| 07/25/1989 | US4851848 Frequency agile synthetic aperture radar |
| 07/19/1989 | EP0324564A2 System for communicating identification information and the like |
| 07/18/1989 | US4849906 Dual mode video tracker |
| 07/18/1989 | US4849761 Multi-mode feed system for a monopulse antenna |
| 07/18/1989 | US4849760 Surface acoustic wave doppler detector |
| 07/13/1989 | WO1989006367A1 File location system |
| 07/12/1989 | EP0323688A1 Tracking systems |
| 07/12/1989 | EP0323662A1 Moving target indication unit |
| 07/11/1989 | US4847624 Coordinate system transformation apparatus for a high resolution radar |
| 07/11/1989 | US4847623 Radar tank gauge |
| 07/11/1989 | US4847622 Coherent pulse radars |
| 07/11/1989 | US4846922 Method of making deactivatable tags |
| 07/11/1989 | CA1257370A1 Method of reconstructing images from synthetic aperture radar's data |
| 07/11/1989 | CA1257369A1 Traffic limiting method and device for an interrogation-response system such as a secondary radar or an iff system |
| 07/05/1989 | EP0323011A2 Transponder antenna |
| 07/05/1989 | EP0322701A2 Data carrier identification system |
| 07/05/1989 | EP0322454A1 Analog-digital correlator |
| 07/04/1989 | US4845685 Digital phase-locked loop |
| 07/04/1989 | US4845506 Antenna system |
| 07/04/1989 | US4845500 Radar video detector and target tracker |
| 07/04/1989 | CA1256969A1 Median filter for reducing data error in distance measuring equipment |
| 06/29/1989 | WO1989005984A1 Process for adapting the frequency band of an oscillating circuit made from a metal-plastic-metal sandwich foil useful as an identification label, and sandwich foil for implementing the process |
| 06/29/1989 | WO1989005983A1 Chirped backscatter filter |
| 06/28/1989 | EP0322062A1 Pulse compression radar and its use in cartography or in meteorology |
| 06/28/1989 | EP0322021A1 Search radar system |
| 06/28/1989 | EP0322017A1 Radar apparatus employing different kind of pulses |
| 06/28/1989 | EP0322005A1 Radioelectrical sensor for creating a radioelectrical map of a site |
| 06/28/1989 | EP0321877A2 Weather radar with turbulence detection |
| 06/27/1989 | US4843398 Tracking radar system |
| 06/27/1989 | US4843397 Distributed-array radar system comprising an array of interconnected elementary satellites |
| 06/27/1989 | US4843396 Trihedral radar reflector |
| 06/27/1989 | US4843331 Coherent digital signal blanking, biphase modulation and frequency doubling circuit and methodology |
| 06/27/1989 | CA1256578A1 Device for calculating a discrete sliding non-recursive fourier transform and its application in a radar system |
| 06/21/1989 | EP0320913A2 A method for locating a mobile station, as well as a mobile station and a base station for carrying out the method |
| 06/20/1989 | US4841489 Method of imaging an object by ultrasonic or electromagnetic waves |
| 06/15/1989 | WO1989005460A1 Buoy and watercraft drift warning system |
| 06/14/1989 | EP0320306A2 Phased-array radar |
| 06/13/1989 | US4839656 Position determination and message transfer system employing satellites and stored terrain map |
| 06/13/1989 | US4839655 Moving target detector signal processor enabling selected video output with smooth amplitude |
| 06/13/1989 | US4839654 System for detecting underground objects |
| 06/08/1989 | DE3740142A1 Surveillance radar method with height finding |
| 06/08/1989 | DE3740141A1 Radar method for the classification of helicopters |
| 06/07/1989 | EP0319395A1 System for controlling or assisting in maritime navigation or in traffic |
| 06/06/1989 | US4837718 Doppler radar method and apparatus for measuring a projectile's muzzle velocity |
| 06/06/1989 | US4837577 Method for stabilizing an electronically steered monopulse antenna |
| 06/06/1989 | US4837576 Antenna tracking system |
| 06/06/1989 | US4837575 Identification system |
| 06/06/1989 | US4837574 Near-field monostatic intrusion detection system |
| 06/06/1989 | US4837503 Remote measurement of high voltage AC with radar |
| 06/01/1989 | WO1989004976A1 Sar signal azimuth ambiguity cancellation |
| 06/01/1989 | WO1989004974A1 Crystal controlled magnetron |
| 05/31/1989 | EP0318382A1 Radioaltimeter detector and proximity fuse therefor |
| 05/31/1989 | EP0151640B1 Two dimension radar system with selectable three dimension target data extraction |
| 05/30/1989 | US4835689 Adaptive coherent energy beam formation using phase conjugation |
| 05/30/1989 | US4835536 Weather radar with turbulence detection |
| 05/30/1989 | US4833918 Sensor and method for ullage level and flow detection |