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