| Patents for G01S 3 - Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received (11,105) |
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| 01/05/1983 | EP0067991A1 Aircraft collision avoidance system |
| 01/04/1983 | US4367403 Array positioning system with out-of-focus solar cells |
| 12/28/1982 | US4366483 Receiver and method for use with a four-arm spiral antenna |
| 12/28/1982 | US4365617 Solar energy heating system |
| 12/15/1982 | EP0067052A2 Audio sensing apparatus |
| 12/14/1982 | US4364089 Binary correlation video tracker |
| 12/07/1982 | US4362931 Sun following-up device for solar heat utilization apparatus |
| 12/07/1982 | CA1137212A1 Stabilized sonobuoy suspension |
| 11/30/1982 | US4361758 Sun position sensor for two axis tracking |
| 11/17/1982 | EP0064774A1 Security ignition circuit for an under water igniter |
| 11/17/1982 | EP0064746A2 Sunlight direction sensor |
| 11/16/1982 | CA1135826A1 Digital time-delay beamformer for sonar systems |
| 11/09/1982 | US4358768 Radio direction finder |
| 11/09/1982 | US4358767 Method of tracking for telecommunications antennae |
| 11/09/1982 | CA1135385A1 Digital bearing indicator |
| 10/27/1982 | EP0063517A1 Passive range-finding system |
| 10/26/1982 | US4356491 Marine direction finding system |
| 10/19/1982 | US4355313 Satellite antenna orientation control method and sensor configuration applying said method |
| 09/21/1982 | US4351026 Projectile locating apparatus for use in target shooting |
| 09/14/1982 | US4349840 Apparatus for automatically steering an electrically steerable television antenna |
| 09/14/1982 | US4349838 Laser target designator system |
| 09/14/1982 | US4349733 Sun tracker |
| 09/07/1982 | US4348676 Automatic phase alignment system for a tracking antenna |
| 09/07/1982 | CA1131339A1 Formation of sonar channels by charge-coupled devices |
| 08/31/1982 | US4347514 Troposcatter system antenna alignment |
| 08/24/1982 | US4346384 Remote object position and orientation locator |
| 08/10/1982 | US4343294 Solar collector assembly |
| 08/03/1982 | CA1129053A1 Radio direction finding |
| 07/27/1982 | US4342032 Device for the detection of and defense against masked helicopters |
| 07/22/1982 | WO1982002432A1 Aircraft collision avoidance system |
| 07/20/1982 | US4340812 Radiation energy collection and tracking apparatus |
| 07/06/1982 | CA1127260A1 Infrared surveillance system |
| 06/23/1982 | EP0054353A2 Apparatus for reception and radiation of electromagnetic energy in predetermined fields of view |
| 06/22/1982 | US4336542 Method of and system for tracking an object radiating a circularly or linearly polarized electromagnetic signal |
| 06/22/1982 | CA1126396A1 Threshold selection circuit |
| 06/15/1982 | US4335452 Electro-acoustic device for the underwater signalling and identification of a vessel |
| 06/15/1982 | US4335384 Logarithmic amplifier calibration means |
| 06/15/1982 | US4334521 Solar energy system |
| 06/08/1982 | USRE30960 Central receiver solar collector using mechanically linked mirrors |
| 06/08/1982 | US4334226 Antenna system for satellite communication |
| 06/08/1982 | US4334225 Antenna system for locating a microwave signal source |
| 06/08/1982 | US4333704 Solar alignment device |
| 06/08/1982 | US4333446 Solar concentrator |
| 06/01/1982 | US4333170 Acoustical detection and tracking system |
| 06/01/1982 | US4333106 Method of measuring firing misses and firing miss-measuring installation for the performance of the method |
| 06/01/1982 | US4332239 Sun powered automatic sun following reflector |
| 06/01/1982 | US4332238 Solar tracking system |
| 06/01/1982 | CA1124826A1 Beamformer |
| 05/25/1982 | US4331960 Automatic tracking methods and apparatus |
| 05/18/1982 | US4330705 Optical tracking device using interlaced images |
| 05/04/1982 | US4328548 Locator for source of electromagnetic radiation having unknown structure or orientation |
| 05/04/1982 | US4328499 Radio direction finding systems |
| 05/04/1982 | US4328421 Horizon sensor |
| 05/04/1982 | US4328417 Solar tracking mechanism |
| 04/28/1982 | EP0050539A1 Video imaging system for a homing-head |
| 04/28/1982 | EP0050189A2 Apparatus for collecting and concentrating solar light energy |
| 04/27/1982 | US4326685 Sun-sensing guidance system for high-altitude aircraft |
| 04/27/1982 | CA1122697A1 Image discriminators |
| 04/20/1982 | US4325633 Apparatus for determining of angle of incidence of electromagnetic energy |
| 04/13/1982 | US4325124 System for controlling the direction of the momentum vector of a geosynchronous satellite |
| 04/13/1982 | US4324225 Solar tracking device |
| 03/30/1982 | US4321909 Servo-controlled solar tracking apparatus |
| 03/30/1982 | CA1120788A1 Underwater craft for acoustic inspection of pipelines for leaks |
| 03/18/1982 | WO1982000884A1 Sun position sensor for two axis tracking |
| 03/16/1982 | US4320400 Method and apparatus that nearly instantaneously samples, processes and sorts received signals from very large numbers of radar and radio emitters for frequency and angle of arrival analysis |
| 03/16/1982 | US4320288 Solar tracking system |
| 03/16/1982 | US4319541 Navigational aid |
| 03/10/1982 | EP0047084A1 Solar collection system |
| 03/09/1982 | CA1119705A1 Method and arrangement for lateral determination with two-channel direction finders |
| 03/09/1982 | CA1119704A1 Radio navigation system |
| 03/02/1982 | US4318106 Direction finding system |
| 02/23/1982 | US4317120 Sector scan ADF system |
| 02/23/1982 | US4317031 Central focus solar energy system |
| 02/23/1982 | CA1118868A1 Theodolite for tracking and measuring a flying object with a tv camera arranged at a telescope |
| 02/23/1982 | CA1118741A1 System for controlling the direction of the momentum vector of a geosynchronous satellite |
| 02/18/1982 | WO1982000515A1 Optical target tracking and designating system |
| 02/16/1982 | US4316270 Digital time-delay beamformer for sonar systems |
| 02/16/1982 | US4316269 Own doppler nullifier for sonar system |
| 02/16/1982 | US4316218 Video tracker |
| 02/16/1982 | US4316193 Servo loop processor |
| 02/16/1982 | US4316191 Low angle radar processing means |
| 02/16/1982 | US4316084 Light tracking detectors and housing therefor |
| 02/16/1982 | US4315690 Arrangement for locating radiating sources |
| 02/09/1982 | US4315263 Navigational systems using phase encoded angular coordinates |
| 02/09/1982 | US4314761 Arrangement for locating radiating sources |
| 02/09/1982 | US4314546 Array positioning system |
| 02/09/1982 | CA1118092A1 Correlator follower for tracking an object |
| 02/02/1982 | US4314276 Autoboresighting electro-optical system |
| 02/02/1982 | US4314252 Preamplifier for ADF loop antenna |
| 02/02/1982 | US4314251 Remote object position and orientation locater |
| 01/27/1982 | EP0044391A1 Tracking method for an antenna |
| 01/26/1982 | US4313117 Method and apparatus for electrically scanning an antenna array in a monopulse DF radar system |
| 01/26/1982 | US4312326 Electro-magnetic radiation reflective concentrator |
| 01/13/1982 | EP0043407A2 Arrangement for the digital measuring of phase difference |
| 01/05/1982 | CA1115825A1 Ultrasonic anemometer |
| 12/22/1981 | US4307402 Direction finder |
| 12/15/1981 | US4306240 Bearing measuring system for frequency modulation |
| 12/15/1981 | CA1114481A1 System for providing angular deviation data for locating a transmitter |
| 12/09/1981 | EP0041146A1 Method and apparatus for determination of angle incidence of electromagnetic energy |
| 12/09/1981 | EP0041115A1 Electro-magnetic radiation reflective concentrator |