Patents
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)
06/1987
06/09/1987US4672381 Doppler tracking processor and time of closest approach detector
06/09/1987US4672380 Gain restoration after doppler filtering
06/09/1987US4672379 Doppler radar transceiver
06/09/1987CA1222809A1 Method of reconstructing synthetic aperture radar image
06/09/1987CA1222808A1 Continuous wave radar with ranging capability
06/09/1987CA1222806A1 Pulse radar apparatus
06/03/1987EP0224447A1 Angle measurement device for amplitude monopulse receivers
06/03/1987EP0224286A1 Device for measuring the own distance from a vehicle
06/03/1987EP0224226A2 Identification system
06/03/1987EP0223961A1 Interrogator and transponder test equipment
06/03/1987CN85103379A Measuring method for fluid substance level in container and its equipment
06/02/1987US4670845 System and method for automatically controlling vehicle speed
06/02/1987US4670758 Depression angle ranging system and methods
06/02/1987US4670757 Bistatic object location method
06/02/1987US4670755 Pulse radar apparatus
06/02/1987US4670753 Method and apparatus for minimum amplitude time history analysis
05/1987
05/27/1987EP0223657A1 Discrete Fourier transform calculating device and its application to pulse compression in a radar system
05/27/1987EP0223129A2 Method for distance measurement in a pulse radar with a high pulse repetition frequency
05/27/1987EP0100324B1 A system for localizing laid cables or pipes
05/26/1987US4668954 Aircraft position determining system
05/26/1987CA1222308A1 Doppler tracking processor and time of closest approach detector
05/21/1987WO1987003099A1 Radar apparatus
05/21/1987DE3540808A1 Device for detecting and combating ground targets pulled under cover
05/20/1987CN86104796A Digital mixing apparatus
05/19/1987US4667199 Simulator
05/19/1987US4667197 Transponder output amplitude modulation control
05/19/1987US4667196 Active visual display system for remote three-axis flight path guidance of landing aircraft
05/19/1987US4667195 Rear monitor system triggered by occupant leaving the vehicle
05/14/1987DE3540210A1 Method and circuit for measuring the speed of moving bodies
05/12/1987US4665403 Method and apparatus for level measurement with microwaves
05/12/1987US4665401 Millimeter wave length guidance system
05/12/1987US4665400 Method and apparatus for radar surveillance
05/07/1987WO1987002812A1 Warning system for rear end vehicle collisions
05/06/1987EP0220877A1 Fail-safe sensor system
05/06/1987EP0220752A2 Ground control method at an aerodrome for vehicles, and arrangement for carrying out this method
05/06/1987EP0220360A2 Expander system for pulse signals
05/05/1987CA1221442A1 Monopulse detection systems
04/1987
04/28/1987US4661819 Doppler tolerant binary phase coded pulse compression system
04/28/1987US4661818 Electronically adjustable delay-simulator for distance-measuring apparatus operating on the frequency-modulated continuous wave principle
04/28/1987US4661817 Method and apparatus for measuring the distance to an object
04/28/1987US4661816 Adaptive radar signal processor
04/23/1987WO1987002493A1 Alarm restraining system in an apparatus for preventing collision of aircraft
04/23/1987DE3536441A1 Acquisition system which can be built up on resting or moving carriers for generating pictorial and non-pictorial representations of electromagnetic and/or acoustic signals
04/22/1987EP0219392A1 Shifting, non-recursive, discrete Fourier transform computing device, and its use in a radar system
04/21/1987US4660050 Doppler radar velocity measurement horn
04/21/1987US4660046 Single power source data transmission system
04/21/1987US4660040 Target range sensing apparatus
04/21/1987US4660038 Doppler distrometer for the measurement of hydrometer size distribution
04/21/1987US4659982 Microwave apparatus and method of operation to determine position and/or speed of a movable body or discontinuity or change in a material
04/15/1987EP0217953A1 Doppler signal analyzer
04/15/1987EP0217797A1 Improvements in speed measurement
04/14/1987US4658257 Radar system
04/14/1987US4658255 Adaptive radar signal processing apparatus
04/09/1987WO1987002141A1 Compressive receiver having pulse width expansion
04/08/1987EP0216897A1 High speed synthetic aperture radar processing system.
04/07/1987US4656480 Monopulse FM-CW radar system with improved axis stability
04/07/1987US4656479 Radar system
04/07/1987US4656478 Passive transponder for locating avalanche victims
04/07/1987US4656477 Perfectioning in reply type radar systems, in particular the SSR type
04/07/1987US4656476 Warning device for golf carts
04/07/1987US4656463 Monitoring and control system
04/01/1987EP0216584A2 Frequency-dividing transponder and use thereof in a presence detection system
04/01/1987EP0216432A2 RF circuit arrangement
04/01/1987EP0215940A1 Imaging doppler interferometer.
04/01/1987CN85107029A Positioning and message-transfering system employing satellites and stored topographic map
03/1987
03/31/1987US4654810 Facility for determining delay variations
03/31/1987US4654665 Radar system
03/31/1987US4654641 Frequency divider with single resonant circuit and use thereof as a transponder in a presence detection system
03/31/1987US4654528 Radiation level reporting system
03/25/1987EP0215481A2 Pulse Doppler radar device using digital signal processing
03/25/1987EP0215176A1 Radio-electric distance-measuring method, gyroscopic navigation apparatus using this method, and its use in target designation
03/25/1987EP0215115A1 Aircraft terrain warning system with configuration modified warning and improved mode switching.
03/24/1987US4652882 Receiver with wide dynamic range
03/24/1987US4652881 Efficient adaptive filter bank
03/24/1987US4652879 Phased array antenna system to produce wide-open coverage of a wide angular sector with high directive gain and strong capability to resolve multiple signals
03/18/1987EP0138940B1 Method and apparatus for measuring the distance to an object
03/17/1987US4651158 DME morse code identity decoder
03/17/1987US4651153 Low complexity digital processor for MX security radar
03/17/1987US4651152 Large relative bandwidth radar
03/11/1987EP0213558A1 A method and an apparatus for detecting an intruder
03/10/1987USRE32368 Collision avoidance system for aircraft
03/10/1987US4649395 Pulse radar apparatus
03/10/1987US4649390 Two dimension radar system with selectable three dimension target data extraction
03/10/1987US4649389 Stacked beam radar and target height measurement extractor especially for use therein
03/10/1987US4649388 Radar detection of hazardous small scale weather disturbances
03/10/1987CA1219051A1 Position-fixing system
03/04/1987EP0211961A1 System for discriminating pulses such as response signals in a transponder
03/03/1987US4647933 Phased antenna array for wind profiling applications
03/03/1987US4647931 Dual frequency identification system
03/03/1987US4647930 Passive radar responder
03/03/1987US4647874 Doppler signal processing circuitry
02/1987
02/26/1987WO1987001210A1 Instrument landing system
02/25/1987EP0211623A2 Identification of ground targets in airborne surveillance radar returns
02/24/1987US4646244 Terrain advisory system
02/24/1987US4646097 Off-channel frequency discriminator circuit for use in a precision distance measuring equipment (DME/P) receiver
02/24/1987US4646095 Method of resolving closely spaced targets
02/24/1987US4646094 Method of discriminating between signals
02/24/1987US4646093 Digital monopulse for tracking radar
02/24/1987US4646092 Method of and apparatus for continuous wave electromagnetic distance measurement of positioning
02/24/1987US4646091 Airborne set for a two-way distance-ranging system