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)
09/1988
09/28/1988EP0284075A2 Radar system consisting of an array of interconnected elementary satellites
09/28/1988EP0283723A2 An N-dimensional information display method for air traffic control
09/28/1988EP0283599A1 Radar system for discriminating between first and multi-time around echos
09/27/1988US4774470 Shield tunneling system capable of electromagnetically detecting and displaying conditions of ground therearound
09/20/1988US4772889 Device for calculating a discrete fourier transform and its application to pulse compression in a radar system
09/15/1988DE3805343A1 Kommunikationsanlage Communication system
09/13/1988US4771288 Centroid detection apparatus and method therefor
09/13/1988US4771287 Method of correcting for errors in radar imaging
09/13/1988CA1242020A1 System for interrogating a passive transponder carrying phase-encoded information
09/13/1988CA1242014A1 Signal receptor-reradiator and surveillance tag using the same
09/07/1988WO1988006738A1 Relative position indicating means and method
09/07/1988EP0280800A1 Narrow range gate baseband receiver
09/07/1988EP0280799A1 Antenna system for wide bandwidth signals
09/06/1988US4769646 Antenna system and dual-fed lenses producing characteristically different beams
09/06/1988US4768877 Method and device for measuring the propagation time of a wave
09/06/1988CA1241725A1 Delay device and the use thereof in the decoding device of distance measuring equipment
08/1988
08/30/1988US4768207 Systems for receiving messages transmitted by pulse position modulation (PPM)
08/30/1988US4768156 Imaging system
08/30/1988US4768036 Collision avoidance system
08/30/1988US4768035 Coherent radar digital data collector and sampling technique for noncoherent transmitter radars
08/30/1988US4768034 Radar system for multiple object tracking and discrimination
08/30/1988CA1241416A1 Navigation system including integrated electronic chart display
08/30/1988CA1241385A1 Arrangement for determining the starting instant of the leading edge of a high-frequency pulse
08/25/1988WO1988006295A1 Holographic radar
08/23/1988US4766436 Radar device for measuring the distance of the device to a surface
08/23/1988US4765244 Apparatus for the detection and destruction of incoming objects
08/17/1988EP0131581B1 Remote passive identification system
08/16/1988US4763861 Microwave rendezvous system for aerial refueling
08/16/1988CA1240773A1 Wide angle multi-mode antenna
08/16/1988CA1240772A1 Electronic surveillance system employing the doppler effect
08/11/1988WO1988005921A1 Method and apparatus for detecting an out of beam condition in a monopulse radar receiver
08/10/1988EP0277772A2 Doppler radar method and apparatus for measuring a projectile muzzle velocity
08/10/1988CN87100292A Factor improving method to heigten moving target selecting radar
08/09/1988CA1240384A1 Ground proximity warning system having modified terrain closure rate warning on glide slope approach
08/03/1988EP0276885A1 A radar system
08/03/1988EP0276530A1 Millimeter wave length guidance system
08/03/1988EP0276454A1 Target-tracking system
08/02/1988US4761652 Arrangement for measuring the distance separating the arrangement from a moving body
08/02/1988US4761651 Pulse discriminating system for reply signals in a transponder
08/02/1988US4761650 System for measuring height distributions of atmospheric temperature, wind direction and wind speed
08/02/1988CA1240037A1 Microstrip space duplexed antenna
08/02/1988CA1240019A1 Range limited coherent frequency doppler surveillance system
07/1988
07/28/1988WO1988005547A1 Processing parameter generator for synthetic aperture radar
07/28/1988WO1988005546A1 Identification and/or localization system and beacon
07/26/1988US4760587 Device for transmitting high-frequency pulses in a certain pattern and a radio-navigation system including such a device
07/26/1988US4760398 Methods and apparatus for determining the differential sideband power of radar signals
07/26/1988US4760397 Target tracking system
07/26/1988US4760396 Apparatus and method for adjusting set clearance altitude in a terrain following radar system
07/26/1988CA1239685A1 Microwave detection system
07/20/1988EP0274526A1 Transponder device.
07/19/1988US4758850 Identification of ground targets in airborne surveillance radar returns
07/19/1988US4758839 Terrain profile radar system
07/19/1988US4758838 Method of reconstructing images from synthetic aperture radar's data
07/19/1988US4757714 For a self-propelled sportsman
07/12/1988US4757450 Method and system for automatically detecting a preceding vehicle
07/12/1988US4757316 Method and device for monitoring a station of a landing aid system of the MLS type
07/12/1988US4757315 Method and apparatus for measuring distance
07/12/1988US4757253 Circuit arrangement for frequency analysis of received signals which lie in a wide overall frequency band
07/06/1988EP0273326A2 Landing-aid system for aircraft having its own on-board radar
07/06/1988CN87108166A 目标跟踪系统 Target Tracking System
06/1988
06/30/1988WO1988004783A1 Frequency domain, pulse compression radar apparatus for eliminating clutter
06/30/1988DE3644002A1 Target tracking system
06/30/1988DE3643169A1 Device for motor vehicles for preventing rear-end collisions
06/28/1988US4754278 Method for the in-line measurement of background noise for MTI radar with suppression of samples not originating from noise, and digital device embodying said method
06/28/1988US4754277 Apparatus and method for producing linear frequency sweep
06/23/1988DE3727620A1 Digital signal-matched filter
06/22/1988CN87106615A Signal source distortion compensator
06/21/1988US4752779 Missile guidance system
06/21/1988CA1238400A1 Trihedral radar reflector
06/21/1988CA1238398A1 Terrain advisory system
06/21/1988CA1238376A1 Apparatus for compensating non-linearities in frequency-modulated signal
06/21/1988CA1238365A1 Device for generating a frequency modulated signal
06/16/1988WO1988004201A1 Rotor recognition system
06/16/1988DE3642698A1 Automatic shower control system
06/16/1988DE3641696A1 Tail warning radar
06/14/1988US4751511 For detecting a projectile using a radar system
06/14/1988US4750689 System for determining the angular spin position of an object spinning about an axis
06/14/1988US4750584 Distance measuring device
06/09/1988DE3640401A1 Air space surveillance centre
06/08/1988EP0270274A2 Transponder and interrogator
06/08/1988EP0270148A1 Radar apparatus for measuring its distance to an object
06/08/1988EP0269710A1 High resolution imaging doppler interferometer
06/07/1988USH484 Polarization isolation and zero time-sidelobe pulse compression through group-complementary coding
06/07/1988US4750036 Interactive television and data transmission system
06/07/1988US4749994 Signal processing for radars having clutter maps
06/07/1988US4749950 Binary power multiplier for electromagnetic energy
06/07/1988CA1237798A1 Driver alerting device
06/06/1988EP0177611A4 Electronic surveillance system employing the doppler effect.
06/02/1988WO1988004109A1 Monopulse antenna with improved sidelobe suppression
06/02/1988WO1988004063A1 Apparatus for detecting materials buried under the ground
06/02/1988WO1988004062A1 Method and apparatus for radar surveillance
06/02/1988WO1988004061A1 Method and system for radar compatible data communication
06/01/1988EP0269276A2 Hand-held measuring device
06/01/1988DE3639500A1 Radar receiver for mobile radar apparatuses having an antenna array with clutter suppression which acts in a two-dimensional manner
05/1988
05/31/1988US4748448 Remote sensing apparatus for satellites
05/25/1988EP0268420A2 Marker for detecting buried object
05/25/1988EP0268089A2 Passive transponder
05/24/1988US4746924 Apparatus and methods for locating a target utilizing signals generated from a non-cooperative source
05/24/1988US4746922 Method of and device for removing range ambiguity in a pulse-doppler radar and radar including such a device
05/24/1988US4746867 For detection of objects buried in the ground