| 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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| 01/17/1990 | EP0350751A2 Method and apparatus for monitoring the speed of vehicles using a Doppler radar speed measuring device, and application of the method |
| 01/17/1990 | CN2051358U Single-aerial multipolarization frequency modulated continous-wave radar |
| 01/16/1990 | US4894661 Fish school detecting method or apparatus |
| 01/16/1990 | US4894660 Range sidelobe reduction by aperiodic swept-frequency subpulses |
| 01/16/1990 | US4894659 Radar altimeter systems |
| 01/16/1990 | US4894658 Method of data reduction in non-coherent side-looking airborne radars |
| 01/11/1990 | WO1990000288A1 Method and device for mapping out a path of an underground conduct |
| 01/10/1990 | EP0350095A1 Radar radio altimeter system using frequency-modulated continuous waves |
| 01/09/1990 | US4893127 Radar navigation system |
| 01/09/1990 | US4893125 Vehicle diplex doppler near-obstacle detection system |
| 01/04/1990 | DE3822098A1 Electronic safety switch-off mechanism against unintentional or unmonitored discharge of media at tapping points, in particular automatically controlled or regulated sanitary fittings |
| 01/04/1990 | DE3821692A1 Method for monitoring an essentially closed room |
| 01/03/1990 | EP0349516A1 Method and apparatus for mapping out a path of an underground conduct |
| 01/03/1990 | EP0349110A2 Ground probing radar method and apparatus |
| 01/02/1990 | US4891648 Aircraft radar arrangement |
| 01/02/1990 | US4891599 Expander system for pulse signals |
| 12/28/1989 | WO1989012877A1 Continuously armed high reliability pulse train processor |
| 12/28/1989 | DE3821215A1 Speed/distance travel sensor for motor vehicle arrangements |
| 12/28/1989 | DE3541402A1 Method for target analysis by fine range discrimination |
| 12/28/1989 | DE3530036A1 Radar receiving device and a radar installation equipped with a device of this type |
| 12/28/1989 | DE3347455A1 Method and device for carrying out the same processing of a plurality of simultaneously occurring analog signals of short duration, and a tracking radar in which this device is used |
| 12/28/1989 | DE3343326A1 Method and device for improving the angular resolution of a monopulse radar |
| 12/27/1989 | EP0348036A2 Narrow bandwith frequency modulated radar apparatus for obstacle detection |
| 12/27/1989 | CN1038349A Moving-target microwave sensor |
| 12/26/1989 | US4890113 Second time around clutter cancellation system |
| 12/26/1989 | US4890111 Passive transponder |
| 12/26/1989 | US4890076 Reflection type SSB modulator |
| 12/21/1989 | DE3708137A1 Method and arrangement for an on-board radar for detecting moving ground-based targets |
| 12/20/1989 | EP0346922A2 Signal transmission system |
| 12/20/1989 | CN1038171A Distant tracking method for continuously finding moving object |
| 12/20/1989 | CN1038170A Single antenna, multipolarization, frequency modulated continuous-wave radar |
| 12/19/1989 | US4888591 Signal discrimination system |
| 12/19/1989 | US4888585 Information signal transmitting device |
| 12/12/1989 | US4887088 Signal processing and radio ranging system |
| 12/12/1989 | US4886069 Method of, and apparatus for, obtaining a plurality of different return energy imaging beams responsive to a single excitation event |
| 12/06/1989 | EP0344885A2 Beam powered antenna |
| 12/06/1989 | EP0344865A2 Signal processing system for collecting and outputting samples |
| 12/05/1989 | US4885591 Method and apparatus for monitoring ice masses |
| 12/05/1989 | US4885590 Blind speed elimination for dual displaced phase center antenna radar processor mounted on a moving platform |
| 12/05/1989 | US4885588 Radar transponder |
| 12/05/1989 | CA1263756A1 Device for calculating discrete fourier transforms and its application to pulse compressions in a radar system |
| 12/05/1989 | CA1263722A1 Passive marker structure |
| 11/30/1989 | WO1989011662A1 Method and apparatus for determining the position and velocity of a target in inertial space |
| 11/29/1989 | EP0343823A1 Method for stabilizing an electronically steered monopulse antenna |
| 11/23/1989 | EP0343034A1 Radio system for data transmission with a passive terminal station |
| 11/23/1989 | EP0342529A2 Method for locating a radio frequency emitter |
| 11/21/1989 | US4882590 Method for locating a radio frequency emitter |
| 11/21/1989 | US4882569 Deactivatable fequency-dividing-transponder tag |
| 11/16/1989 | DE3815709A1 Im zeitbereich arbeitendes radarsystem In the time-domain working radar system |
| 11/15/1989 | EP0341665A2 Recognition system |
| 11/15/1989 | EP0341401A2 Radar transponder |
| 11/14/1989 | US4881079 Aperture radar |
| 11/14/1989 | US4881077 Radar arrangement |
| 11/14/1989 | CA1262953A1 Missile automatic guiding system and missile equipped with such a system |
| 11/14/1989 | CA1262941A1 Tag device and method for electronic article surveillance |
| 11/09/1989 | DE3814153A1 Radargeraet Radargeraet |
| 11/07/1989 | US4879559 Azimuth processor for SAR system having plurality of interconnected processing modules |
| 11/07/1989 | US4879461 Energy field sensor using summing means |
| 11/02/1989 | WO1989010571A1 Radar system using electronically steerable active transmit-receive modules |
| 10/25/1989 | EP0338696A2 Frequency-dividing amorphous wire transponder for use in a presence detection system |
| 10/24/1989 | US4876550 Ridge regression signal processing for position-fix navigation systems |
| 10/24/1989 | US4876547 M.T.I. radar system |
| 10/19/1989 | DE3127060A1 Radar device |
| 10/18/1989 | EP0337912A1 Detection and identification card using radar and allowing interactive dialogue |
| 10/17/1989 | US4875050 Generalized doppler matched binary pulse compressor |
| 10/11/1989 | EP0336273A2 Pulse Doppler radar |
| 10/11/1989 | EP0336272A2 Pulse compression filter |
| 10/10/1989 | US4873533 Marker for locating a buried object |
| 10/04/1989 | EP0335753A1 Radar for correcting artillery fire |
| 10/04/1989 | EP0335558A2 Radio communication system |
| 10/04/1989 | EP0335030A2 Air traffic control training system |
| 10/04/1989 | EP0335009A2 Procedure for acquiring and processing local traffic data and device for carrying out the procedure |
| 10/04/1989 | EP0334897A1 Rotor recognition system. |
| 10/03/1989 | US4872014 Object identification system and method utilizing radiometry |
| 10/03/1989 | US4872013 Method and device for the slant range correction of a short-range radar |
| 10/03/1989 | US4872012 Data compression method and apparatus for radar image formation and like data processing operations |
| 09/27/1989 | EP0334711A1 Apparatus for elimination of moving clutter in a radar |
| 09/27/1989 | EP0334560A2 Radar video detector and target tracker |
| 09/27/1989 | EP0148245B1 Method and system to measure geometric and electromagnetic characteristics of objects |
| 09/27/1989 | CN1005288B Radar system operating in two frequence bands |
| 09/26/1989 | US4870663 Method for selecting the mode of operation of an object counting means |
| 09/26/1989 | US4870425 Communications system |
| 09/26/1989 | CA1261924A1 Digital zero if circuit |
| 09/26/1989 | CA1260602A1 Method to improve the reproduction of images generated by a lateral sonar and device implementing said method |
| 09/26/1989 | CA1260557A1 Pulse synchronizing apparatus |
| 09/26/1989 | CA1260540A1 Apparatus for measuring the length of an electrical line |
| 09/21/1989 | WO1989008853A1 Tcas bearing estimation receiver using a four element antenna |
| 09/20/1989 | EP0333566A1 Method and devices for the translation along the frequency axis of the modulus of the transfer function of a filter |
| 09/20/1989 | EP0333495A2 Position determining equipment |
| 09/19/1989 | US4868917 Radar arrangements |
| 09/19/1989 | US4868916 Excessive ground-closure rate alarm system for aircraft |
| 09/19/1989 | US4868574 Electronically scanned radar system |
| 09/19/1989 | US4866881 Automatic door safety system |
| 09/19/1989 | EP0316402A4 A fast median filter. |
| 09/13/1989 | EP0331728A1 Apparatus for detecting materials buried under the ground |
| 09/12/1989 | USRE33055 Doppler tracking processor and time of closest approach detector |
| 09/12/1989 | US4866449 Multichannel alignment system |
| 09/12/1989 | US4866448 Signal processor for synthetic aperture radar, particularly for parallel computation |
| 09/12/1989 | US4866447 Combined radar and data link |
| 09/12/1989 | US4866446 Method for radar mapping an area and a radar equipment to carry out the method |