| 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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| 07/13/1976 | US3969616 Digital range computer systems for air navigation systems such as tacan |
| 07/06/1976 | US3968492 Adaptive parameter processor for continuous wave radar ranging systems |
| 07/06/1976 | US3968490 Radar MTI processor with CFAR |
| 06/29/1976 | US3967284 Radar apparatus for detecting a coherent Doppler signal in cluttered environments |
| 06/29/1976 | US3967283 Large area motion sensor |
| 06/29/1976 | US3967282 Underground pipe detector |
| 06/29/1976 | US3967202 Data transmission system including an RF transponder for generating a broad spectrum of intelligence bearing sidebands |
| 06/22/1976 | US3965475 Switchable beamwidth monopulse method and system |
| 06/22/1976 | US3965470 Pulse analyzer for an RF moving target detector |
| 06/15/1976 | US3964064 Data display system having a multilevel video storage device |
| 06/15/1976 | US3964063 Traffic-surveillance system |
| 06/08/1976 | US3962705 Radar microwave lobing systems |
| 06/08/1976 | US3962704 Moving target indicator clutter tracker |
| 06/08/1976 | US3962703 Airborne telemetering radar having variable width range gates |
| 05/25/1976 | US3959793 Proximity indication with means for computing the distance from an own station to an interrogating secondary surveillance radar |
| 05/18/1976 | US3958246 Circular retrodirective array |
| 05/18/1976 | US3958243 Circuit for generating a digital or analog signal as a function of doppler frequency |
| 05/18/1976 | US3958242 System for measuring the velocity of a moving object |
| 05/11/1976 | US3956749 Bearing measurement device for a portable attack warning radar |
| 05/11/1976 | US3956748 Omnidirectional tracking weapon control system |
| 05/11/1976 | US3956747 Radar system comprising a primary radar device and a secondary radar device |
| 05/04/1976 | US3955198 Radar RF generator including a stable local oscillator and an exciter circuit |
| 05/04/1976 | US3955197 Impulse correlation function generator |
| 05/04/1976 | US3955196 Marine radar transmission and reception system |
| 05/04/1976 | US3955195 Fixed beam radar with dual range light display providing both range and azimuth information |
| 05/04/1976 | US3955143 Single sideband generator of bi-level signals |
| 04/27/1976 | US3953856 Method and apparatus for mapping and similar applications |
| 04/27/1976 | US3953822 Wave-energy imaging technique |
| 04/20/1976 | US3952305 Marine radar transmission and reception system |
| 04/20/1976 | US3952304 Tracking system utilizing Kalman filter concepts |
| 04/20/1976 | US3952303 Doppler radar for forecasting collision |
| 04/20/1976 | US3952302 Synchronous detector with pulse repetition frequency modulation |
| 04/20/1976 | US3952301 Digital adaptive speed control for vehicles |
| 04/20/1976 | US3952300 Sonar target converter |
| 04/20/1976 | US3952268 Temperature compensated acoustic surface wave device |
| 04/13/1976 | US3950751 Cw interference canceller (cwic) |
| 04/13/1976 | US3950750 Radar system having quadrature phase detector compensator |
| 04/13/1976 | US3950749 Doppler frequency impulse radar system with displaced pulse sequence |
| 04/13/1976 | US3950748 Method of and apparatus for stabilizing the display rate of permanent echoes in a radar system |
| 04/13/1976 | US3950747 Optical processing system for synthetic aperture radar |
| 04/13/1976 | US3950724 Horizontal fish detection sonar |
| 04/13/1976 | US3950704 Video retimer system |
| 04/13/1976 | US3949955 Monopulse receiver circuit for an anti-radar missile tracking system |
| 04/06/1976 | US3949397 Identification - friend or foe system and method |
| 04/06/1976 | US3949396 Fast scan multimode radar |
| 03/30/1976 | US3947847 Radar system |
| 03/30/1976 | US3947845 Altitude coding for collision avoidance system |
| 03/30/1976 | US3947834 Doppler perimeter intrusion alarm system using a leaky waveguide |
| 03/30/1976 | US3947810 Negative climb rate after take-off warning system with predetermined loss of altitude inhibit |
| 03/23/1976 | US3946394 Fixed beam radar with range light display |
| 03/23/1976 | US3946393 Transponder for use in a radio frequency communication system |
| 03/23/1976 | US3946388 System for and method of analyzing electromagnetic waves |
| 03/23/1976 | US3946384 Missile guidance by radar signals using surface acoustic wave correlator |
| 03/23/1976 | US3946383 Monopulse pulse width discriminator |
| 03/23/1976 | US3946358 Aircraft ground proximity warning instrument |
| 03/16/1976 | US3945012 Wide band pulsed energy system |
| 03/16/1976 | US3945011 Radar system employing consecutive pulses only one of which is frequency swept |
| 03/16/1976 | US3945010 Pulse compression radar |
| 03/16/1976 | US3945008 Electronic proximity fuse having multiple Doppler frequency channels |
| 03/16/1976 | US3945007 Radar systems |
| 03/16/1976 | US3945006 Radio frequency coding system |
| 03/16/1976 | US3944858 Arrangement for generating pulse sequences |
| 03/09/1976 | US3943514 Dual base line interferometer antenna |
| 03/09/1976 | US3943513 System and method for selecting Doppler altered reflected signals |
| 03/09/1976 | US3943512 Sidelobe lock-on discriminating method for search-track monopulse radar |
| 03/09/1976 | US3943510 Pulse-repetition frequency discriminator (PRFD) for tracking radar signals |
| 03/09/1976 | US3943508 Electronic roll compensation system for a radar antenna |
| 03/02/1976 | US3942178 Intrusion detection system |
| 03/02/1976 | US3942177 Interferometer radar elevation angle measurement apparatus |
| 03/02/1976 | US3942152 Verification arrangement |
| 03/02/1976 | US3942035 Charge coupled device signal processing apparatus using chirp-Z-transform techniques |
| 03/02/1976 | US3942034 Charge transfer device for frequency filtering respective time segments of an input signal |
| 02/24/1976 | US3940769 Binaural auditory presentation apparatus |
| 02/24/1976 | US3940767 Electronic radome-error compensation system |
| 02/24/1976 | US3940766 Range and angle discriminator for leading edge radar tracking |
| 02/24/1976 | US3940764 Pulse pair recognition and relative time of arrival circuit |
| 02/24/1976 | US3940763 Digital tacan system |
| 02/24/1976 | US3940762 Digital detection criteria control device for video mapping, detection parameter control, optimum radar receiver selection and rejection of non-moving targets |
| 02/24/1976 | US3940696 High frequency, short pulse, band limited radar pulse generator for ultrashort range radar systems |
| 02/17/1976 | US3939475 Method of measuring range with large bistatic angle radar |
| 02/17/1976 | US3939474 Fully-coherent multiple frequency radar system |
| 02/10/1976 | US3938149 Frequency scan radar system with provision for interference elimination |
| 02/10/1976 | US3938148 Automatic frequency control system |
| 02/10/1976 | US3938147 Frequency modulated doppler distance measuring system |
| 02/10/1976 | US3938146 Secure encoder for trilateralization locator utilizing very narrow acceptance periods |
| 02/10/1976 | US3938145 Fast-scanning broad band radar system |
| 02/10/1976 | US3937880 Magnetic disc coder-decoder |
| 02/03/1976 | US3936838 Multimode coupling system including a funnel-shaped multimode coupler |
| 02/03/1976 | US3936825 Combined contiguous filter and acceleration and velocity analyzer for radar |
| 02/03/1976 | US3936824 Method and apparatus for digitally measuring speed |
| 02/03/1976 | US3936823 Fast search and lock-on means for distance measuring equipment |
| 02/03/1976 | US3936797 Radar-barometric altitude indicator |
| 02/03/1976 | US3936761 Plural channel filter |
| 01/27/1976 | US3935572 System for resolving velocity ambiguity in pulse-doppler radar |
| 01/20/1976 | US3934253 Doppler frequency radar system with very short pulse modulated high frequency carrier waves |
| 01/20/1976 | US3934252 Closed loop tunnel diode receiver for operation with a base band semiconductor transmitter |
| 01/20/1976 | US3934251 Automatic t0 control for use in airborne DME system |
| 01/20/1976 | US3934250 Helicopter blind landing and hover system |
| 01/13/1976 | US3932871 FM/CW surveillance radar system with range gating |
| 01/06/1976 | US3931622 Voice-modulated transponder system |