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)
08/1978
08/29/1978US4110754 Detection of angular displacement to an object from the moving vehicle
08/29/1978US4110752 Systems for reducing the elevation error for tracking radars of low height targets
08/29/1978CA1037306A1 Frequency plane filters for an optical processor for synthetic aperture radar
08/22/1978US4109250 Circuit for the comparative vector measurement of radio signal pulses which arrive approximately simultaneously in a plurality of receivers
08/22/1978US4109248 Radar systems
08/22/1978US4109247 Clutter free communications radar
08/22/1978US4109216 Microwave generator
08/22/1978US4108538 Frequency plane filters for an optical processor for synthetic aperture radar
08/22/1978CA1037145A1 Pulse radar utilizing time shifted sampling of returns to reduce noise interference
08/22/1978CA1037124A1 Information transmission system using a high frequency signal and its d.c. component and a harmonic
08/15/1978US4107684 Phase locked detector
08/15/1978US4107683 Device for controlling the conical scanning frequency for conical scanning radar systems
08/15/1978US4107682 System for overcoming the effect of electronic countermeasures
08/15/1978US4107681 Method and apparatus for automatically adjusting the resolution of a radio altimeter over its operating altitude range
08/15/1978US4107680 Digitally processed radar speed sensor
08/15/1978US4107679 Frequency modulator for high-precision range measurements
08/15/1978US4107677 Gate tracking technique utilizing dimension memory
08/15/1978US4107676 Trans-horizon navigation system
08/15/1978US4107675 Transponder-responder system
08/15/1978US4107674 Collision avoidance system for aircrafts
08/08/1978US4106023 Navigation aid system
08/08/1978US4106020 FM-CW Radar ranging system
08/08/1978US4106019 Range resolving doppler radar system
08/08/1978US4106018 Method and apparatus for reducing interference between plural radio altimeters
08/08/1978US4106017 System for sensing velocity through the use of altimetry signals
08/01/1978US4104634 Ground plane corner reflectors for navigation and remote indication
08/01/1978US4104632 System for preventing collision of vehicles
08/01/1978US4104631 Method and system for clutter blanking in a radar target processor
08/01/1978US4104630 Vehicle identification system, using microwaves
08/01/1978US4104629 Marine radar interrogator-transponder target detection, identification, and range measurement system
08/01/1978US4103847 Line scan area signature detection method
07/1978
07/25/1978US4103302 Velocity and drift angle tracking system using altimetry signals
07/25/1978US4103301 Constant false alarm rate moving target indication radar system (cfar-mti)
07/25/1978US4103300 Air navigation and landing aid system
07/18/1978US4101891 Surface roughness measuring system
07/18/1978US4101890 Radar reconnaissance system for track vehicle recognition
07/18/1978US4101888 Anticollision car radar
07/18/1978US4101852 Microacoustic shear bulk wave device
07/11/1978US4100544 Beacon system employing ramped gain receiver
07/04/1978US4099182 Signal receiver
07/04/1978US4099180 Geographic gain time control
07/04/1978US4099124 Combined keyed AGC and pulse amplitude comparator circuit
06/1978
06/27/1978US4097864 Radar-operated vehicle safety apparatus
06/20/1978US4096478 Intra-pulse MTI system with range ambiguity suppression
06/20/1978US4096477 Identification system using coded passive transponders
06/20/1978US4096440 Control system for mobile radio communication
06/20/1978US4095666 Apparatus for preventing collision of vehicles
06/13/1978US4095225 Range side lobe suppression method for a phase modulated radar pulse
06/13/1978US4095223 Four-dimensional isometric radar target image display
06/13/1978US4095222 Post-detection stc in a medium prf pulse doppler radar
06/06/1978US4093951 Compensation for simultaneous platform motion and antenna scanning in MTI radars
06/06/1978US4093950 Motion-compensation arrangements for MTI radars
06/06/1978US4093949 Clutter tracker using a smoothed doppler frequency measurement
06/06/1978US4093948 Target detection in a medium pulse repetition frequency pulse doppler radar
05/1978
05/30/1978US4092644 Digital weather radar including target severity analysis capability
05/30/1978US4092603 System for obtaining pulse compression in the frequency domain
05/23/1978US4091385 Doppler radar flowmeter
05/16/1978US4090198 Passive reflectance modulator
05/16/1978US4090197 Monopulse, fan-beam, search-radar system with improved height and azimuth determination
05/16/1978US4090196 Inverse gain modulator
05/16/1978US4090195 Anti-burglar mini-radar
05/16/1978US4089734 Integrated circuit fusing technique
05/09/1978US4088997 Single channel monopulse radar system
05/09/1978US4088955 Interference rejection technique
05/02/1978US4087815 Hybrid digital-optical radar signal processor
05/02/1978US4087814 Intruder alarm systems
05/02/1978US4087791 Electromagnetically responsive device and system for detecting the same
05/02/1978US4087755 Solid state pulse generator for an air navigational system
05/02/1978US4087753 Communication apparatus for communicating between a first and a second object
04/1978
04/25/1978US4086592 Digital sidelobe canceller
04/25/1978US4086590 Method and apparatus for improving the slowly moving target detection capability of an AMTI synthetic aperture radar
04/25/1978US4085740 Method for measuring physiological parameter
04/11/1978US4084160 Arrangement for correcting deviations from the true bearing caused by reflecting surfaces in target tracking radar installations
04/11/1978US4084159 Secant correction circuit
04/11/1978US4084158 Method of operating synthetic aperture radar
04/04/1978US4083049 Moving target radar
04/04/1978US4083048 Time alignment error sensor system for range tracking
04/04/1978US4083015 Fast switching phase lock loop system
04/04/1978US4083007 Radar transmitter temporal noise reduction system
03/1978
03/21/1978US4080594 Doppler shift actuator and intrusion systems
03/14/1978US4079377 FM-CW radar for range and relative speed determination
03/14/1978US4079376 Target detection system in a medium PRF pulse doppler search/track radar receiver
03/14/1978US4079375 Radar, in particular for watching over premises
03/07/1978US4078235 Obstacle detecting system
03/07/1978US4078234 Continuous wave correlation radar system
02/1978
02/28/1978US4077038 Digital radar control system and method
02/21/1978US4075632 Interrogation, and detection system
02/21/1978US4075631 System for identifying objects equipped with an automatic transponder
02/21/1978US4075630 Signal processor
02/14/1978US4074263 Code signal processing circuitry for iff transponder beacon
02/14/1978US4074249 Magnetic detection means
02/14/1978US4073359 Braking system for avoiding a collision of a vehicle with an obstacle thereof
02/07/1978US4072949 Range gate walk-off of compressive radar
02/07/1978US4072947 Monotonically ranging FM-CW radar signal processor
02/07/1978US4072946 Method and apparatus for measuring the distance between two stations
02/07/1978US4072945 Radar-operated collision avoidance system for roadway vehicles using stored information for determination of valid objects
02/07/1978US4072944 Imminent collision detection apparatus
02/07/1978US4072943 Multi-target tracker
02/07/1978US4072942 Apparatus for the detection of buried objects
02/07/1978US4072941 Underwater monitoring