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)
11/1979
11/13/1979US4174519 Method for the improved utilization of response signals in a _secondary radar system and a secondary radar system for implementing the method
11/06/1979US4173762 Reference signal generating apparatus
10/1979
10/30/1979US4173017 Programmable signal processor for Doppler filtering
10/30/1979US4173016 Interpersonal-introduction signalling system
10/23/1979US4172256 Circuit for speed measurement of vehicles according to the Doppler-radar principle
10/23/1979US4172255 HF coastal current mapping radar system
10/09/1979US4170774 Amplitude selected phase interferometer angle measuring radar
10/09/1979US4170773 Precision approach sensor system for aircraft
10/04/1979WO1979000721A1 Method and system for detection of thin metal layers in packaged articles
10/02/1979US4170008 Clutter discriminating fuze apparatus
10/02/1979US4170007 Adding frequency agility to fire-control radars
10/02/1979US4170006 Radar speed measurement from range determined by focus
10/02/1979CA1063676A1 Transponder system
09/1979
09/25/1979US4169264 Synchronous digital delay line pulse spacing decoder
09/18/1979US4168501 Method and system for moving target elimination and indication
09/18/1979US4168500 Method and system for moving target elimination and indication using smoothing filters
09/18/1979US4168499 Anti-collision radar system provided with circuitry for monitoring driver's
09/18/1979US4168496 Quasi-stationary noise cancellation system
09/11/1979US4167737 Hybrid pulse compression system
09/11/1979US4167736 Fluid flow measurement
09/11/1979US4167735 Aircraft orientation determining means
09/04/1979US4167007 Method and apparatus for identifying radar targets
09/04/1979US4167006 Collision avoidance system of aircraft
09/04/1979US4166973 Method and system for detection of thin metal layers in packaged articles
08/1979
08/21/1979US4165511 Reduction of echoes of irrelevant targets in a vehicle anti-collision radar system
08/21/1979US4165492 Recirculation circuit for repetition of an analog pulse signal
08/21/1979US4165033 Identification system
08/21/1979CA1060954A1 Transponder system for the transfer of signalling information for rail-bounded vehicles
08/14/1979US4164740 Synthetic aperture using image scanner
08/14/1979US4164738 Focused synthetic array
08/07/1979USRE30069 Multiple ranging DME
08/07/1979US4163975 Method of measuring the altitude of a target maneuvering at a very low elevation, and a tracking radar using same
08/07/1979US4163974 Antenna feed system
08/07/1979US4163973 Means for developing a radar tracking error signal
08/07/1979US4163972 Automatic shipboard collision avoidance system
07/1979
07/31/1979US4163235 Satellite system
07/31/1979US4163233 Continuous-wave range measurement apparatus
07/31/1979US4163232 Dual mode microwave mixer
07/31/1979US4163231 Radar mapping technique
07/24/1979US4162495 Updating an en-route Tacan navigation system to a precision landing aid
07/17/1979US4161732 Gated pulse compression radar
07/17/1979US4161731 Thickness measurement system
07/17/1979US4161730 Radio determination using satellites transmitting timing signals with correction by active range measurement
07/17/1979US4161729 Beacon add-on subsystem for collision avoidance system
07/17/1979US4161715 Method and apparatus for measuring the interior dimensions of a hollow body
07/10/1979US4160975 Correction circuit for wide bandwidth antenna
07/10/1979US4160974 Target sensing and homing system
07/10/1979US4160960 Power-dividing and modulating arrangement
07/10/1979CA1058305A1 Negative climb rate after take-off warning system with predetermined loss of altitude inhibit
07/03/1979US4160251 Hybrid dual mode radiometric system
07/03/1979US4160250 Active radar missile launch envelope computation system
07/03/1979US4160249 Analogue storage and processing system
07/03/1979US4160248 Solid state pulsed coherent doppler radar
07/03/1979US4160214 Modular modulator for radar transmitters
07/03/1979US4159873 Rangefinder and digital single shot circuit
06/1979
06/27/1979EP0002595A1 Transponders
06/19/1979US4158888 Fast Fourier Transform processor using serial processing and decoder arithmetic and control section
06/19/1979US4158841 Method and apparatus for the control of the safety distance of a vehicle relative to preceding vehicles
06/19/1979US4158840 3-D Radar comprising 2-D radar with height finding attachment
06/19/1979US4158785 Pulse regulation delay line modulator
06/12/1979US4158202 Receiver bandwidth conservation in a Doppler radar
06/12/1979CA1056497A1 Digital antenna control apparatus for a communications terminal
06/05/1979US4157549 Doppler radar module
06/05/1979US4157546 Variable frequency radar systems
06/05/1979US4157545 Correlation radar system
06/05/1979US4157544 Hybrid terminal assist landing
06/05/1979CA1056038A1 Range readout method and appartus
05/1979
05/29/1979US4156876 Autocorrelation sidelobe suppression device for a continuous periodic phase-coded signal
05/29/1979US4156875 Range gate generator with velocity aiding
05/29/1979US4156874 Anti-collision vehicle radar system
05/29/1979US4156873 Transponder for a moving vehicle tracking system
05/17/1979WO1979000260A1 Correlation follower for tracking an object
05/16/1979EP0001848A1 Monopulse radar apparatus
05/15/1979US4155088 Dual frequency transmission apparatus for frequency-agile radar systems utilizing MTI techniques
05/15/1979US4155087 Radar receiver for detecting coded information buried in radar echoes
05/15/1979US4155086 Clutterlock with displaced phase antenna
05/08/1979US4153935 Navigational aid
05/08/1979US4153900 Phase-coded pulse compression type pulsed energy system
05/08/1979US4153899 MTI radar system and method
05/01/1979US4152701 Base band speed sensor
05/01/1979US4152700 Radar extractor having means for estimating target location with a range cell
05/01/1979CA1053781A1 Marine traffic conflict assessment system
04/1979
04/24/1979US4151527 Process and apparatus for the detection of objects, especially of objects having a very small equivalent surface area
04/24/1979US4151526 Obstacle detecting radar apparatus for a motor vehicle or the like
04/24/1979US4151525 Radio-electric system for locating a given object
04/24/1979US4151524 Multipath communications system
04/17/1979US4150378 Height finding radar
04/17/1979US4150377 Ranging system for guiding moving objects over equidistant tracks
04/17/1979US4150376 Side-looking radar systems
04/17/1979US4150375 Interferometric protective system for vehicles
04/17/1979US4150307 Line modulator nondissipative series regulator
04/10/1979US4149157 Receiver for a HF-intrusion detection system
04/10/1979CA1052462A1 Train position indication
04/03/1979US4148029 System for estimating acceleration of maneuvering targets
04/03/1979US4148028 Radar system for an anti-collision system for a vehicle
04/03/1979US4148027 Surface roughness measuring apparatus
03/1979
03/27/1979US4146891 Vehicle collision preventing apparatus
03/27/1979US4146890 Range rate measurement
03/20/1979US4145690 Ciphering device improving the secrecy of the encoded replies of a secondary radar
03/13/1979US4144571 Vehicle guidance system