| 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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| 09/09/1987 | EP0236035A2 A laser threat warning system |
| 09/09/1987 | EP0235286A1 Infrared sensor provided with feedback limited amplifier. |
| 09/08/1987 | US4692806 Image-data reduction technique |
| 09/03/1987 | DE3606547A1 Mirror tracking system for coelostats |
| 09/01/1987 | US4690351 For use in a spinning projectile |
| 08/27/1987 | WO1987005177A2 Extremely high speed, real-time background filter for radiation detectors |
| 08/25/1987 | US4689773 For immersion in an external acoustic transmission medium |
| 08/25/1987 | US4688933 Electro-optical position determining system |
| 08/20/1987 | DE3703781A1 Direction-finding device |
| 08/19/1987 | EP0233080A2 Infrared seeker |
| 08/18/1987 | US4688092 Satellite camera image navigation |
| 08/18/1987 | US4688046 ADF bearing and location for use with ASR and ASDE displays |
| 08/18/1987 | US4687923 Method for determining the direction of a radiation source |
| 08/12/1987 | EP0232071A2 Sonar apparatus |
| 08/04/1987 | US4684804 Method and apparatus for processing the output signals of an optical earth-horizon sensor operating in the infrared range of an orbiting earth satellite |
| 08/04/1987 | CA1225159A1 Signal discriminator |
| 07/28/1987 | US4682888 Spectral analyzer and direction indicator |
| 07/21/1987 | US4682024 Laser radiation warning sensor utilizing polarization |
| 07/21/1987 | US4681282 Device for the detection and elimination of unwanted images created by the pyramidal IR dome |
| 07/14/1987 | US4680718 Method and apparatus of determining an attitude of a satellite |
| 07/14/1987 | US4679753 Surveying satellite incorporating star-sensing attitude determination subsystem |
| 07/07/1987 | US4678328 Non-optimum waveguide optical sensor |
| 07/01/1987 | EP0226841A1 One-dimensional panoramic display |
| 06/30/1987 | US4677476 Method for detecting a movement of a television signal |
| 06/25/1987 | DE3544289A1 Method for tracking the linear path of a vehicle |
| 06/23/1987 | US4675680 Antenna tracking device |
| 06/23/1987 | US4674874 Laser detection device |
| 06/23/1987 | US4674871 Spectral analyzer and direction indicator |
| 06/23/1987 | US4674715 Measuring arrangement for determining the attitude of an earth satellite |
| 06/18/1987 | WO1987003696A1 Optical angle of arrival measuring system |
| 06/16/1987 | US4673944 Autocalibrating interferometer |
| 06/16/1987 | US4673921 Apparatus for finding the location of a car within a vast area |
| 06/16/1987 | EP0225625A2 Device for determining positions of light-spots on a plane light sensor |
| 06/16/1987 | CA1223070A1 Star sensor using ccd |
| 06/11/1987 | DE3543787A1 Measuring arrangement for determining the angle of incidence of light |
| 06/11/1987 | DE3543786A1 Device for determining the location of a light spot on a surface of a light sensor |
| 06/09/1987 | US4672220 Method and apparatus for reading out an opto-electric detector |
| 06/09/1987 | US4672205 Method of processing the output signals of an optical earth-horizon sensor |
| 06/09/1987 | US4672191 Shadow solar tracking device and system |
| 06/02/1987 | USH292 Apparatus for the detection of angles-of-arrival of radio frequency signals |
| 05/21/1987 | WO1987001532A3 Infrared sensor provided with feedback limited amplifier |
| 05/20/1987 | EP0222354A1 Direction-finding device |
| 05/19/1987 | US4667104 Method and apparatus for deriving an off-course signal for an orbiting earth seatellite by means of an earth-horizon sensor |
| 05/19/1987 | US4667090 Synthetic aperture multi-telescope tracker apparatus |
| 05/12/1987 | US4665314 Method and circuit for processing the signals of an earth-horizon sensor in an earth satellite |
| 05/07/1987 | DE3538649A1 Direction finder |
| 05/05/1987 | US4663746 Self-scanned time multiplexer with delay line |
| 05/05/1987 | US4663631 Apparatus for maintaining the orientation of an antenna system with respect to a beacon |
| 04/30/1987 | DE3537759A1 Method for eliminating the directional ambiguity of linear antennas |
| 04/30/1987 | DE3537730A1 Device for automatically steering towards a target point |
| 04/28/1987 | US4661938 Sonar apparatus |
| 04/28/1987 | US4661937 Sonar beam steering circuit |
| 04/28/1987 | US4660969 Device for searching objects within wide visual field |
| 04/22/1987 | EP0219340A2 Acoustic direction finder for use as an active responder |
| 04/22/1987 | EP0219339A2 Acoustic direction finder for use as an active range finder |
| 04/21/1987 | US4658805 Thermo-hydraulic power supply |
| 04/15/1987 | EP0218055A1 Infrared movement detector |
| 04/15/1987 | EP0217871A1 Dual mode video tracker. |
| 04/14/1987 | US4658431 Star sensor using CCD |
| 04/14/1987 | US4658361 Method and apparatus for determining satellite attitude by using star sensor |
| 04/14/1987 | US4658256 Combined monopulse comparator and adaptive noise canceller for antennas |
| 04/09/1987 | DE3534826A1 Automatic maritime search and rescue radio direction finder |
| 04/01/1987 | EP0216571A2 Star scanner |
| 04/01/1987 | EP0111503B1 Installation for automatically directing a solar energy concentration reflector |
| 03/31/1987 | US4654832 Sonobuoy retaining and release apparatus |
| 03/31/1987 | US4654667 Signal-acquisition system for a circular array |
| 03/31/1987 | US4654664 Automatic direction finder |
| 03/31/1987 | US4654518 Scanning horizon sensor |
| 03/17/1987 | US4649900 Solar tracking system |
| 03/17/1987 | US4649899 Solar tracker |
| 03/17/1987 | CA1219363A1 Flotation bag assembly |
| 03/12/1987 | WO1987001532A2 Infrared sensor provided with feedback limited amplifier |
| 03/11/1987 | EP0213418A1 Method of and apparatus for the direction finding of targets |
| 03/10/1987 | US4649392 Two dimensional transform utilizing ultrasonic dispersive delay line |
| 03/03/1987 | US4647935 Apparatus for determining the magnitude of phase discontinuities introduced into a received signal at known instants |
| 03/03/1987 | US4647761 Airborne system for the electrooptical detection, location and omnidirectional tracking of a target |
| 02/24/1987 | US4646099 Three-dimensional fourier-transform device |
| 02/19/1987 | DE1935651C1 Guidance system for rocket-propelled missile - provides guiding signals along wires using missile-borne radiation source and auxiliary radiation source to avoid interference |
| 02/17/1987 | US4644397 Method of processing a video image to track a bright spot and to protect said tracking from interference from other bright spots |
| 02/17/1987 | US4644267 Signal analysis receiver with acousto-optic delay lines |
| 02/12/1987 | DE3528127A1 Method for determining direction-finding components in an interferometer arrangement and receiver for carrying out the method |
| 02/10/1987 | US4642649 Passive ranging method and apparatus using interferometric scanning |
| 02/10/1987 | US4642642 Adaptive monopulse phase/amplitude calibration correction system |
| 02/04/1987 | EP0210241A1 Direction finder operating according to the watson-watt principle |
| 02/03/1987 | US4641143 Two-dimensional acquisition system using circular array |
| 01/27/1987 | US4639733 Direction finding |
| 01/20/1987 | US4638321 Unambiguous wide baseline interferometer |
| 01/20/1987 | US4638320 Direction finding interferometer |
| 01/20/1987 | US4638319 R.F. system |
| 01/15/1987 | DE3616269A1 Panoramic light receiver with vertical focusing effect |
| 01/15/1987 | DE3523537A1 Receiver, particularly direction-finding receiver, having a number of channels |
| 01/13/1987 | US4636796 Radio direction finding system |
| 01/13/1987 | CA1216452A1 Device for sensing moving light source |
| 01/08/1987 | DE3523186A1 Method for distinguishing between point and area targets |
| 01/08/1987 | DE3522838A1 Digital search and reconnaissance receiver (electronic warfare) |
| 01/07/1987 | EP0207213A1 Method for generating antenna tracking signals |
| 01/06/1987 | US4635065 Antenna device for direction finders |
| 01/06/1987 | US4634230 Multi dimensional instantaneous optical signal processor |
| 01/06/1987 | CA1216348A1 Radio direction finder with enhanced null seeking |
| 01/06/1987 | CA1216347A1 Interference cancelling receiver having high angular resolution intercept of transmitted radiators |