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)
12/1992
12/15/1992US5172125 Method of operating radar in an aircraft
12/15/1992US5172123 Frequency feedback linearizer
12/15/1992US5172122 All weather tactical strike system (AWISS) and method of operation
12/15/1992US5172121 System for automatic identification of rail cars
12/15/1992US5172120 All weather tactical strike system (AWISS) and method of operation
12/15/1992US5172119 All weather tactical strike system (AWTSS) and method of operation
12/15/1992US5172118 In a synthetic aperture radar system
12/10/1992WO1992021993A1 Quasi-optical transmission/reflection switch and millimeter-wave imaging system using the same
12/10/1992WO1992021992A1 Apparatus for detecting and tracking an object
12/08/1992US5170218 Apparatus and method for detecting wind direction
12/08/1992US5170171 Three dimensional interferometric synthetic aperture radar terrain mapping employing altitude measurement
12/08/1992US5170169 Quasi-optical transmission/reflection switch and millimeter-wave imaging system using the same
12/08/1992US5170168 Identification of friend from foe device
12/03/1992DE4117849A1 Generating reference signal for pulse compression of FM, PM or AM signals in radar system - performing FFT of signals containing errors and reference signals, multiplying in several stages and using inverse Fourier transform to produce time domain reference signal
12/02/1992EP0516301A2 Apparatus for measuring speed
12/02/1992EP0515675A1 Synchronous spread-spectrum communications system and method
12/01/1992USH1123 Off-route non-contact system for detecting vehicles
12/01/1992USH1122 Frequency decomposition into range and range-rate
12/01/1992US5168277 Radar tracking system having target position dead reckoning
12/01/1992US5168214 Multi-rate superresolution time series spectrum analyzer
11/1992
11/26/1992WO1992021181A1 Dual satellite navigation system and method
11/26/1992WO1992021041A1 Oceanographic and meteorological data
11/26/1992DE4117158A1 Microwave contactless distance measurer with circulator and second mixer - interprets phase difference between transmission and received echo using cosine-shaped distance relationship of output voltage
11/25/1992EP0515187A2 Method and apparatus for sensing proximity of an object using near-field effects
11/25/1992EP0514853A2 Stretch and chirp waveform format for reduced generating and receiving hardware complexity
11/25/1992EP0514539A1 Spread spectrum cdma communications system
11/24/1992US5166689 Azimuth correction for radar antenna roll and pitch
11/24/1992US5166688 Method for extracting motion errors of a platform carrying a coherent imaging radar system from the raw radar data and device for executing the method
11/24/1992US5166676 A transponder
11/24/1992US5165497 Automatic safety driving distance control device for a vehicle
11/24/1992CA1310725C Propagation time detecting system with use of detected phase difference of transmitted and received subcarrier
11/23/1992CA2068098A1 Method and apparatus for sensing proximity of an object using near-fieldeffects
11/19/1992EP0513287A1 Motion detector unit.
11/17/1992US5164985 Passive universal communicator system
11/17/1992US5164910 Moving target discrimination from passive measurements
11/17/1992US5164734 Radar target with delayed reply means
11/17/1992US5164731 Turbulence radar system
11/17/1992US5164730 Method and apparatus for determining a cross-range scale factor in inverse synthetic aperture radar systems
11/17/1992US5164719 Radio system for data transmission with passive terminal station
11/17/1992US5163319 Method and a device for recognizing the condition of a road
11/17/1992CA1310396C Rotor recognition system
11/17/1992CA1310389C System for detecting underground objects
11/12/1992WO1992019982A1 Operational channel selection
11/12/1992WO1992019928A1 Trajectory analysis radar system for artillery piece
11/11/1992CN2121697U Radar range/ speed optics treating apparatus
11/10/1992US5163176 All weather tactical strike system (AWTSS) and method of operation
11/10/1992US5162828 Display system for a head mounted viewing transparency
11/10/1992US5162805 Frequency diversity sidelobe canceller
11/10/1992US5162802 Method and apparatus for tracking using an efficient gating scheme
11/10/1992US5162794 Safe trailing distance warning for vehicles
11/07/1992WO1992019980A2 Multi-frequency automotive radar system
11/05/1992DE4212685A1 Doppler radar sensor for position, velocity or movement detection - uses switch between base of microwave transistor and DC source allowing continuous wave or pulsed operating mode
11/05/1992DE4114974A1 Increasing measuring precision for FMCW radar - uses auxiliary signal to mix again with differential mixing signal from transmit and reception signals
11/03/1992WO1992019981A1 Hf background noise measurement in hf environments
11/03/1992US5160933 Radar altimeter with self-calibration feature
11/03/1992US5160932 Over-the-horizon synthetic aperture radar
11/03/1992US5160931 Interferometric synthetic aperture detection of sparse non-surface objects
11/03/1992US5160190 Movable storage system with aisle monitoring apparatus
11/03/1992CA2102200A1 Hf background noise measurement in hf environments
10/1992
10/29/1992WO1992018917A1 Modular frequency management system
10/29/1992WO1992018876A1 Process and arrangement for retroreflective measurement of distance
10/29/1992DE3216487C1 Object e.g. aircraft identifying equipment - recognises friend by additional code e.g. speech pattern of pilot inserted in answer code from transponder
10/28/1992EP0510131A1 Electronic equipement for prevention of collisions between vehicles
10/27/1992US5159345 Traffic speed radar unit
10/27/1992US5159344 Aircraft theft detection and location system
10/27/1992US5159343 Range information from signal distortions
10/27/1992US5159332 Proximity identification system with flux concentration in operating region
10/27/1992US5159295 Microwave vector modulator and device for matching a microwave load
10/27/1992CA1309491C Microwave plate antenna in particular for doppler radar
10/21/1992EP0509843A2 Radar system with active array antenna, elevation-responsive PRF control, and beam multiplex control
10/21/1992EP0509842A2 Radar processor with range sidelobe reduction following doppler filtering
10/20/1992US5157615 Aircraft traffic alert and collision avoidance device
10/20/1992US5157403 Noise correction in radars for diffuse targets
10/20/1992US5157402 Method and apparatus for calculating motional characteristics
10/15/1992WO1992017796A1 Radar control task scheduling
10/14/1992EP0508968A1 A method of detecting the division of a radar target
10/14/1992EP0508866A1 Navigation apparatus for the detection of radar
10/14/1992EP0508765A2 Improvements in vehicle detection systems
10/13/1992US5155706 Automatic feature detection and side scan sonar overlap navigation via sonar image matching
10/13/1992US5155050 Method of fabrication of a monolithic microwave transmitter/receiver
10/10/1992WO1992018877A1 Microburst precursor detector utilizing microwave radar
10/08/1992DE4110683A1 Small HF transmitter unit serving as antitheft device for articles - has integrated circuit chip with programmed memory contg. data which can be sent as serial answer signals when min. voltage level is reached
10/06/1992US5153596 Cw radar system
10/06/1992US5153595 Range information from signal distortions
10/06/1992US5153588 Warning system having low intensity wind shear enhancements
10/01/1992WO1992016855A1 Data transmission installation
09/1992
09/30/1992EP0505827A1 Secondary radar system
09/30/1992CN1018505B Interactive television and data transmission system
09/29/1992WO1992017947A1 Identification apparatus and method
09/29/1992US5151702 Complementary-sequence pulse radar with matched filtering following doppler filtering
09/29/1992US5151661 Direct digital FM waveform generator for radar systems
09/29/1992CA2103910A1 Identification apparatus and method
09/26/1992WO1992016856A1 A synthetic aperture radar
09/26/1992CA2106969A1 A synthetic aperture radar
09/23/1992EP0504993A1 Doppler radar speed sensor
09/23/1992EP0504702A2 Echo ranging system
09/23/1992EP0504281A1 Dual satellite navigation method and system
09/23/1992EP0298112B1 Processing parameter generator for synthetic aperture radar
09/22/1992US5150426 Moving target detection method using two-frame subtraction and a two quadrant multiplier
09/22/1992US5150336 Frequency dispersive transmitting array