| 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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| 11/12/1980 | EP0018673A1 Method of measuring shooting errors and shooting error measurement device for carrying out the method |
| 11/04/1980 | CA1089064A1 Sun-tracking solar energy conversion system |
| 11/04/1980 | CA1088827A1 Solar-radiation collection apparatus |
| 10/28/1980 | CA1088654A1 Automatic direction finding system |
| 10/21/1980 | US4229740 Radio frequency signal direction finding systems |
| 10/21/1980 | US4229076 Solar energy concentrator |
| 10/15/1980 | EP0017540A1 Opto-electric device for localising a luminous point-source |
| 10/15/1980 | EP0016767A1 Radiation seeker |
| 10/14/1980 | US4227513 Solar system having improved heliostat and sensor mountings |
| 10/07/1980 | US4227212 Adaptive updating processor for use in an area correlation video tracker |
| 10/07/1980 | US4227196 Direction finding apparatus |
| 10/07/1980 | US4227077 Optical tracking system utilizing spaced-apart detector elements |
| 10/07/1980 | US4227076 Optical position determining or tracking device |
| 10/07/1980 | CA1087291A1 Antisubmarine warfare system |
| 09/30/1980 | US4225954 Acoustical deverberator |
| 09/30/1980 | US4225867 Orientation system |
| 09/30/1980 | US4225781 Solar tracking apparatus |
| 09/18/1980 | WO1980001956A1 Radar system |
| 09/16/1980 | US4223311 Long range listening system |
| 09/16/1980 | US4223214 Solar tracking device |
| 09/16/1980 | US4223174 Sun-tracking solar energy conversion system |
| 09/09/1980 | US4221966 Infrared surveillance system |
| 09/03/1980 | EP0015199A1 Optoelectric device for localising a radiating source and direction locating system comprising such devices |
| 09/03/1980 | EP0015148A2 Servo-controlled solar tracking apparatus |
| 09/02/1980 | US4220967 Scene tracker using multiple independent correlators |
| 09/02/1980 | US4220954 Adaptive antenna system employing FM receiver |
| 09/02/1980 | CA1085017A1 Optical scanning apparatus |
| 08/26/1980 | US4219847 Method and apparatus of determining the center of area or centroid of a geometrical area of unspecified shape lying in a larger x-y scan field |
| 08/26/1980 | US4219821 Automatic direction finding system |
| 08/26/1980 | US4219729 Method of aligning and locating the mirrors of a collector field with respect to a receptor tower |
| 08/20/1980 | EP0014215A1 Direction finder combining directional antenna signals with a non-directional antenna signal |
| 08/12/1980 | CA1083338A1 Photo electronic astro compass |
| 08/05/1980 | US4216476 Digital electronic commutator for radio direction finding system |
| 07/29/1980 | US4215347 Target seeker simulator |
| 07/29/1980 | CA1082791A1 Harbor radio navigation system |
| 07/22/1980 | US4214316 Method and apparatus for synchronously tuning the multi-channel superheterodyne receiver of a DF system |
| 07/22/1980 | US4214244 Null pattern technique for reduction of an undesirable interfering signal |
| 07/22/1980 | CA1082352A1 Surveillance arrangements |
| 07/08/1980 | US4212085 Frequency activated direction indicator |
| 07/08/1980 | US4211922 Heliostat guidance |
| 07/01/1980 | US4210913 Passive detection and tracking apparatus |
| 07/01/1980 | US4210804 Free-gyro optical seeker |
| 06/24/1980 | US4209853 Holographic system for object location and identification |
| 06/24/1980 | US4209791 Antenna apparatus for bearing angle determination |
| 06/24/1980 | US4209699 Infra-red detection system for detecting low-flying objects |
| 06/24/1980 | CA1080339A1 Signal processing for detection |
| 06/17/1980 | US4208738 Deployable sonar array with interconnected transducers operated in the bending mode |
| 06/17/1980 | US4208735 Moving sound source identifying system |
| 06/17/1980 | US4208733 Sound source detecting systems |
| 06/11/1980 | EP0012060A1 System for optoelectric detection and angular localisation of a luminous object |
| 06/10/1980 | US4207622 Direction-finding array of crossed dipoles |
| 06/10/1980 | US4207572 Sky wave DF antenna system |
| 06/10/1980 | CA1079394A1 Surveillance arrangements |
| 06/03/1980 | US4205659 Solar energy collector |
| 05/20/1980 | US4204281 Signal processing system for underwater transducer |
| 05/20/1980 | US4203667 Covert recovery or signalling system |
| 05/14/1980 | EP0010774A1 Method of and system for tracking an object radiating a circularly or linearly polarized electromagnetic signal |
| 05/13/1980 | US4203163 Target-detection and location system |
| 05/13/1980 | US4203114 Digital bearing indicator |
| 05/13/1980 | US4202515 Two tone tracker |
| 05/13/1980 | US4202322 Solar energy collector and heat exchanger |
| 05/06/1980 | US4202050 Multi-angular sector sound transmitting and receiving system |
| 04/29/1980 | CA1076702A1 Marine streamer position determination system |
| 04/22/1980 | US4199256 Optical system |
| 04/22/1980 | US4198826 Solar powered engine and tracking system |
| 04/15/1980 | US4198705 Directional energy receiving systems for use in the automatic indication of the direction of arrival of the received signal |
| 04/15/1980 | US4198704 Passive underwater target detection and locating system |
| 04/15/1980 | US4198635 Orientation system |
| 04/15/1980 | US4198634 Optical autocorrelator signal processor |
| 04/15/1980 | US4198633 Electronic signal processing system |
| 04/08/1980 | US4197543 Display processor for aircraft landing system |
| 04/08/1980 | US4197542 Radio navigation system |
| 04/08/1980 | CA1075341A1 Cw-laser illuminator detector |
| 04/02/1980 | EP0009071A1 Theodolite for tracking flying objects with a television camera built into the telescope |
| 04/01/1980 | US4195775 Solar energy system |
| 03/25/1980 | US4195360 Signal processing circuit |
| 03/19/1980 | EP0008714A1 Photoelectric docking device |
| 03/18/1980 | US4194244 Angle sensing system |
| 03/18/1980 | US4194207 Radiolocation system for determining the direction of incident electromagnetic waves |
| 03/18/1980 | US4193688 Optical scanning system |
| 03/11/1980 | US4192583 Solar receiver heliostat reflector having a linear drive and position information system |
| 03/11/1980 | US4192289 Solar heat collection system |
| 02/26/1980 | US4190766 Sun tracking system |
| 02/19/1980 | US4189747 Infrared tracking system |
| 02/19/1980 | US4189116 Navigation system |
| 02/12/1980 | US4188531 Apparatus for scanning an air space for detecting low-flying airplanes and flying bodies |
| 02/12/1980 | US4187834 Solar heating system |
| 02/06/1980 | EP0007864A1 Sonar beam formation by means of charge transfer devices |
| 02/05/1980 | US4187492 Device for determining the relative position of elongate members towed behind a ship |
| 02/05/1980 | US4187490 Range determining system |
| 02/05/1980 | US4187422 Internal reference for stellar tracker |
| 02/05/1980 | US4187123 Directionally controlled array of solar power units |
| 02/05/1980 | US4186899 Controlled beam projector |
| 01/29/1980 | US4186370 Stabilized sonobuoy suspension |
| 01/23/1980 | EP0006941A1 Correlation follower for tracking an object |
| 01/15/1980 | US4184159 Method and installation for temperature control in a silo |
| 01/01/1980 | US4181851 Automatic astroposition determination apparatus |
| 01/01/1980 | US4181435 Holographic field lens detector |
| 12/25/1979 | US4180814 Multiple beam receiving array signal processor |
| 12/18/1979 | US4179682 Tilt compensation for acoustic transducing system |