Patents
Sitemap › G01 - Measuring; Testing › G01S - Radio direction-finding; Radio navigation; Determining distance or velocity by use of radio waves; Locating or presence-detecting by use of the reflection or reradiation of radio waves; Analogous arrangements using other waves › 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
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)
05/1989
05/24/1989EP0316524A1 Pulse radar system
05/24/1989EP0316471A1 Method for increasing error detection at the speed measurement of aircraft by means of a Doppler radar
05/24/1989EP0316402A1 A fast median filter
05/24/1989DE3739094A1 Remote measurement method for determining the wind vector in a measurement volume in the atmosphere
05/23/1989US4833480 Short range ranging system
05/23/1989US4833479 Digital poly-phase pulse compressor
05/23/1989US4833469 Obstacle proximity detector for moving vehicles and method for use thereof
05/18/1989WO1989004498A1 Process and device for determining the condition of a road
05/18/1989WO1989004496A1 Millimeter wave imaging device
05/17/1989EP0316148A2 Processor for radar system
05/16/1989US4831383 System for detecting underground objects
05/11/1989DE3836480A1 Anhaenger bzw. etikett und verfahren zu seiner herstellung Trailers or label and process for its manufacture
05/11/1989DE3835510A1 Device, operating according to the Doppler principle, for measuring the distance travelled by a vehicle
05/10/1989EP0314783A1 Airborne surveillance method and system
05/10/1989EP0314715A1 Multi-mode microwave landing system
05/09/1989US4829307 Recursive radar clutter filter
05/09/1989US4829306 System for detection of objects with given, known characteristics against a background
05/09/1989US4829305 Medium distance measurement system and method
05/09/1989US4829303 Data volume reduction for imaging radar polarimetry
05/09/1989US4828382 Passive radio altimeter
05/05/1989WO1989004093A1 Passive universal communicator
05/05/1989WO1989004003A1 Traffic advisory-vertical speed and radar display
05/03/1989DE3833659A1 Method and device for non-contact speed measurement
05/02/1989US4827418 Expert system for air traffic control and controller training
05/02/1989US4827395 Manufacturing monitoring and control systems
05/02/1989US4827264 Apparatus for controlling the opening and closing of doors
05/02/1989US4827263 Pulse doppler radar system
05/02/1989CA1253612A1 Processing of reflected signals
05/02/1989CA1253567A1 Time-domain induced polarization logging method and apparatus
04/1989
04/25/1989US4825214 Frequency-modulated continuous wave radar for range measuring
04/25/1989US4825213 Simultaneous triple aperture radar
04/25/1989US4825055 Error-free integration pointing and tracking
04/19/1989EP0312180A1 Apparatus for measuring the distance to an object
04/19/1989EP0236331B1 Methods of detection and identification of one or more remote objects
04/18/1989US4823272 N-Dimensional information display method for air traffic control
04/18/1989US4823137 For calculating distance of local station
04/18/1989US4823133 Radar system
04/18/1989US4823127 Automatic, real-time fault monitor verifying network in a microwave landing system
04/18/1989CA1252856A1 Navigation, communication, and surveillance system based on dme
04/13/1989DE3521431A1 Circuit arrangement to cause a goal decision for very short signal pulses
04/12/1989EP0311312A2 Radar altimeter systems
04/12/1989EP0310869A2 Method for automatic target classification by land and water combat vehicles, and apparatus therefor
04/11/1989US4821039 Detecting objects with radar signals
04/11/1989US4821037 Wideband adaptive array using the chirp transform
04/06/1989WO1989003053A1 Downhole pulse radar
04/06/1989WO1989003050A1 Transmission system for radar derived positional data
04/05/1989EP0310172A1 FM-CW radar apparatus
04/04/1989USH628 Universal automatic landing system for remote piloted vehicles
04/04/1989US4818999 Method and apparatus for measuring frequency and phase difference
04/04/1989US4818998 Method of and system and apparatus for locating and/or tracking stolen or missing vehicles and the like
04/04/1989US4818973 System for detecting a transfer of an article
04/04/1989CA1252184A1 Simple passive/active proximity warning system
04/04/1989CA1252183A1 Adaptive spread spectrum radar
03/1989
03/29/1989EP0308964A2 Radio-frequency identification system
03/29/1989EP0308877A2 Radar transponder
03/29/1989EP0308830A2 Antenna system
03/29/1989EP0308585A2 Method and apparatus for radar target detection and classification
03/29/1989EP0308477A1 An arrangement for measuring speeds
03/28/1989US4817001 Method of correcting navigation system errors caused by drift
03/28/1989US4816839 Transponder antenna
03/28/1989US4816834 Pulse synchronizing apparatus
03/28/1989US4816833 Pulse doppler surveillance post signal processing and scan to scan correlation
03/23/1989WO1989002605A1 Closed loop velocity/altitude sensor for fm-cw doppler radars
03/22/1989EP0308324A1 Doppler speed measurement apparatus for security
03/21/1989US4814769 Friend-foe interrogation method and a system using this method
03/21/1989US4814768 For detecting/locating fractures in a geological formation
03/21/1989CA1251563A1 Doppler-inertial data loop for navigation system
03/15/1989EP0307338A1 Microwave plate antenna, especially for a Doppler radar
03/15/1989EP0306942A2 Propagation time detecting system with use of detected phase difference of transmitted and received subcarrier
03/15/1989EP0306760A1 Coherent digital signal blanking, biphase modulation and frequency doubling circuit and methodology
03/15/1989CN1003613B Object-detecting method and system
03/14/1989US4813006 Radar system
03/14/1989US4812850 Method and apparatus for combining waveforms
03/14/1989US4812849 Nonquadrature correction circuit
03/14/1989US4812771 Expander system for pulse signals
03/14/1989CA1251273A1 Rapid inventory data acquisition system
03/09/1989WO1989002085A1 Dual mode video tracker
03/09/1989WO1989002012A1 Non-contact control
03/08/1989EP0305907A1 Parking aid device
03/08/1989CN1031618A Recording and replaying system for motion status
03/07/1989CA1250933A1 Passive transponder for locating avalanche victims
03/01/1989EP0305308A1 System for remote detection, recognition and identification
03/01/1989EP0304982A1 Chirp pulse echo ranging apparatus
03/01/1989EP0304626A2 Traffic-monitoring device
03/01/1989EP0304448A1 Relative position indicating means and method
02/1989
02/28/1989US4809004 Radar system
02/28/1989US4809002 Moving target indicator
02/28/1989US4809000 Transom member for sliding doors
02/21/1989US4807171 Digital phase rotation of signals
02/21/1989US4806936 Method of determining the position of multiple targets using bearing-only sensors
02/21/1989US4806935 Closed loop velocity/altitude sensor for FM-CW doppler radars
02/21/1989US4806934 Tracking circuit for following objects through antenna nulls
02/21/1989US4806932 Instrument landing and takeoff system
02/14/1989US4805015 Airborne stereoscopic imaging system
02/14/1989US4804963 Wide dynamic range digital receiver
02/14/1989US4804962 Clutter elimination radar
02/14/1989US4804961 Method and apparatus for measuring distances
02/09/1989WO1989000279A3 Analog-digital correlator
02/07/1989US4803488 Driver alerting device
02/01/1989EP0301127A1 Transponder arrangement
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