| 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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| 03/29/1989 | EP0309168A1 Automatic solar lighting apparatus using a solar following sensor |
| 03/29/1989 | EP0309002A1 Dual mode video tracker |
| 03/29/1989 | EP0308504A1 Response-rationing angle of arrival sensor. |
| 03/29/1989 | EP0308503A1 Target tracking systems. |
| 03/28/1989 | US4815840 Position locating system for a vehicle |
| 03/22/1989 | EP0307677A1 Method for target field clarification |
| 03/15/1989 | EP0307381A2 Optical navigation system for an automatic guided vehicle, and method |
| 03/15/1989 | EP0306654A2 Angular error detecting device |
| 03/15/1989 | EP0152482B1 Direction finding interferometer internal calibration system |
| 03/09/1989 | WO1989002085A1 Dual mode video tracker |
| 03/07/1989 | US4811308 Seismo-acoustic detection, identification, and tracking of stealth aircraft |
| 03/07/1989 | US4810978 Imaging system which responds to incoming light |
| 03/07/1989 | US4810870 For measuring the incident angle of received sunlight |
| 02/28/1989 | US4809012 Direction finding equipment |
| 02/28/1989 | US4807592 Reflective parabolic trough |
| 02/28/1989 | CA1250645A1 Apparatus for measuring the position of a luminous object |
| 02/22/1989 | EP0304360A1 Arrangement for the detection of light pulses with a very low false alarm rate for use in laser detection |
| 02/21/1989 | US4806747 Optical direction of arrival sensor with cylindrical lens |
| 02/14/1989 | US4805018 Video signal processing apparatus for separating an image of a moving object from video signals |
| 02/14/1989 | US4804832 Two directional angle of arrival system |
| 02/07/1989 | CA1249875A1 Directional acoustic logger apparatus and method |
| 02/01/1989 | EP0301947A1 Optoelectric device for the detection and localisation of the source of a beam |
| 01/31/1989 | US4802149 Acousto-optic two-dimensional coherent optical modulator |
| 01/31/1989 | US4801941 Angle of arrival processor using bulk acoustic waves |
| 01/31/1989 | US4801202 Method and apparatus for radiometer star sensing |
| 01/24/1989 | US4800541 Method for underwater acoustic direction sensing |
| 01/17/1989 | US4798949 Linear actuated optical concentrator |
| 01/12/1989 | WO1989000323A1 Optical data link |
| 01/12/1989 | DE3721414A1 Detector for heat sources having acoustic evaluation |
| 01/11/1989 | EP0298845A1 Method and apparatus for the protection against a jammer in a radio receiver comprising several switchable antennas, and their use in radio direction finders |
| 01/10/1989 | US4797679 Radio direction-finding using time of arrival measurements |
| 01/10/1989 | US4797562 Image recording sensor |
| 01/10/1989 | US4797557 Position sensing system for a moving object wherein a lens focuses light onto a radiation sensitive matrix |
| 01/10/1989 | US4796873 Active vibration isolation system |
| 01/04/1989 | EP0298059A1 Device for the selective detection of objects |
| 01/04/1989 | EP0297665A2 Radiation source detection |
| 01/03/1989 | US4796187 Method for processing image data to select a target aimpoint |
| 01/03/1989 | CA1248216A1 Active vibration isolation system |
| 12/27/1988 | US4794245 Radiant energy angle |
| 12/20/1988 | US4792684 Dual field horizon scanner |
| 12/20/1988 | US4792675 Diffused surface radiant energy receiver |
| 12/15/1988 | WO1988009938A1 Method and apparatus for processing synthetic aperture aerial signals |
| 12/14/1988 | EP0295152A2 Apparatus for following sun light |
| 12/13/1988 | US4791297 Yaw sensing conical scanner horizon sensor |
| 12/08/1988 | DE3718098A1 Method for extracting a point target from a video signal and circuit arrangement for carrying out the method |
| 12/06/1988 | CA1246204A1 Method for detecting a movement of a television signal |
| 12/01/1988 | WO1988009513A1 Device for the selective detection of objects |
| 12/01/1988 | WO1988009512A1 Airborne surveillance method and system |
| 12/01/1988 | WO1988009480A1 Process and device for compensating for the influence of turbulences in measurements |
| 12/01/1988 | DE3730093A1 Verfahren und vorrichtung zur kompensation von turbulenzeinfluessen im vermessungswesen Method and device for compensation of turbulenzeinfluessen in surveying |
| 12/01/1988 | DE3716182A1 Method and device for computer-adapted processing of the signals of a laser warning sensor |
| 11/30/1988 | EP0293049A1 A light detecting and light direction determining device |
| 11/30/1988 | EP0292546A1 Circuit for determining the extreme value of a voltage. |
| 11/24/1988 | DE3714776A1 Optoelectronic measuring arrangement |
| 11/22/1988 | US4786909 Receiving circuit |
| 11/22/1988 | US4786795 Sun tracking device floating upon liquid surface |
| 11/17/1988 | EP0290585A1 Shadow casting radiation detector |
| 11/15/1988 | US4785169 Method of correcting errors in horizon sensors caused by radiance variations |
| 11/10/1988 | DE3446658A1 Filter for determining target data |
| 11/03/1988 | WO1988008544A1 Multi-mode microwave landing system |
| 11/03/1988 | DE3712866A1 Method for signal detection for a direction-finding receiver |
| 11/03/1988 | DE3712865A1 Method for detecting moving targets by means of an optronic (electrooptic) image recording device (camera) |
| 10/26/1988 | EP0288374A1 Passive telemetry method using sound |
| 10/25/1988 | US4780722 Radio direction-finding |
| 10/20/1988 | WO1988008142A1 Response-rationing angle of arrival sensor |
| 10/20/1988 | WO1988008141A1 Target tracking systems |
| 10/19/1988 | EP0287032A2 Optical alignment system |
| 10/18/1988 | US4778990 Radiant energy receiving and directing apparatus and method |
| 10/18/1988 | CA1243360A1 Receiving circuit |
| 10/11/1988 | US4777360 Umbra/penumbra detector |
| 09/28/1988 | EP0283538A1 Detector apparatus |
| 09/27/1988 | US4773754 End-point optical tracker |
| 09/21/1988 | EP0283302A2 Techniques for determining orbital data |
| 09/15/1988 | DE3706865A1 Method for digitally determining a direction-finding angle |
| 09/08/1988 | DE3705981A1 Device for target identification and fuze triggering of horizontal mines which are to be fired for anti-tank purposes |
| 09/06/1988 | US4769533 Circuit arrangement for a position-sensitive radiation detector |
| 09/06/1988 | US4769531 Direction finder system with inclined detectors |
| 08/31/1988 | EP0280605A1 Bidirectional acoustic detector element |
| 08/30/1988 | US4767937 Scanning system with low scan rate and high effective frame rate |
| 08/30/1988 | CA1241436A1 Antenna orienting device |
| 08/30/1988 | CA1241427A1 Sonobuoy retaining and release apparatus |
| 08/30/1988 | CA1241415A1 Laser direction of arrival detector |
| 08/23/1988 | US4766439 Direction finding system |
| 08/17/1988 | EP0278182A2 Radiant energy receiving and directing apparatus and method |
| 08/17/1988 | EP0278181A2 Diffused surface radiant energy receiver |
| 08/16/1988 | US4764009 Means for extending spectral response of spectral analyzing direction indicating apparatus |
| 08/02/1988 | CA1240049A1 Surveying satellite incorporating star-sensing attitude determination subsystem |
| 07/27/1988 | EP0275430A2 Apparatus for simulating radar targets during the laboratory testing of radar seekers |
| 07/27/1988 | EP0275302A1 Correlated sampling amplifier. |
| 07/27/1988 | EP0275266A1 Rosette scanning surveillance sensor. |
| 07/26/1988 | US4760399 Method for generating antenna follow-up signals |
| 06/28/1988 | US4754282 Improved data analysis system |
| 06/28/1988 | US4754281 Direction finder operating according to the Watson-Watt principle |
| 06/21/1988 | US4752769 Infrared motion alarm |
| 06/16/1988 | WO1988004478A1 System for determining the maximum value of a physical dimension |
| 06/16/1988 | DE3641626A1 Method for determining the location of a transmitter and a direction-finding receiver for such a method |
| 06/15/1988 | EP0270958A1 Circuit for determining the extreme value of a voltage |
| 06/09/1988 | DE3641027A1 Method for locating sound emission sources and device for carrying out the method |
| 06/08/1988 | EP0269790A2 Warning device for laser irradiation |
| 06/07/1988 | US4750147 Method for estimating signal source locations and signal parameters using an array of signal sensor pairs |