|
Match
|
Document |
Document Title |
|
|
7567202 |
Radar system
Embodiments of the invention are concerned with a radar system, and relates specifically to scanning radar systems that are suitable for detecting and monitoring ground-based targets. In one...
|
|
|
7504990 |
Radar apparatus
Disclosed is a DBF radar apparatus comprising: an antenna for radiating a transmit signal; a plurality of antennas for receiving the transmit signal reflected from an object; a first selector...
|
|
|
7489266 |
Radar system and computer program
A radar system comprises: a plurality of reception antennas; a transmission wave generating device; a transmission antenna; a mixer; an A/D converter; a storage device which stores the digitized...
|
|
|
7336218 |
Radar system with peak frequency analysis and window functions
A radar system in which a beat signal is generated by transmitting a transmission signal that is subjected to frequency modulation into a triangular wave and receiving a reflection signal from a...
|
|
|
7333048 |
Periphery monitoring system
In a periphery monitoring system for monitoring movements of a mobile object around an installation location of a Doppler sensor, a signal output from the Doppler sensor is subjected to an FFT...
|
|
|
7184493 |
Pulse sorting apparatus for frequency histogramming in a radar receiver system
Disclosed is a real-time pulse sorting apparatus of a preprocessor in a pulsed radiation detection system. The apparatus, responsive to digital signals generated by a system receiver, uses the...
|
|
|
7136013 |
Radio-wave radar system and adaptive cruise control system
In a radio wave radar system using a two-frequency CW modulation method, it is possible to detect a distance between a host vehicle and a forward vehicle and to realize a stable ACC following...
|
|
|
7053815 |
Radar tracking system
A radar tracking system for an anti-aircraft, missile, including angle tracking, doppler tracking and range tracking feedback loops operating on sum and difference channels. Fast fourier transform...
|
|
|
6972710 |
Automotive radio wave radar and signal processing
In an automotive radio wave radar, a center frequency of a transmitted wave is shifted at a certain cycle, and position information of an obstacle detected at three or more center frequencies is...
|
|
|
6933878 |
Wide bandwidth radar
A wave-form generator drives a number of microwave generating devices each operating at different frequency bands. The output of each microwave generator is connected to its own transmission...
|
|
|
6924762 |
Radar designed to acquire radar data with high accuracy
A radar is provided which transmits a radar wave whose frequency is so modulated as to rise, fall, and be kept constant cyclically. The radar uses beat signals produced by the radar wave and radar...
|
|
|
6703967 |
Distance measuring device
From a transmitter ( 18 ) and a transmission antenna ( 10 ), a first frequency signal having a fixed frequency is transmitted for a predetermined time or more, a second frequency signal having a...
|
|
|
6703966 |
Method and device for measuring the speed of a moving object
To measure the absolute speed of a body 100 moving relative to the ground 33 using an onboard speed sensor 1 , a radar wave is transmitted towards the ground by an antenna with a wide aperture...
|
|
|
6674393 |
FM-CW radar processing device
An FM-CW radar processing system pairs up peaks obtained by fast-Fourier transforming a beat signal occurring on an up portion and a down portion of a triangular-shaped FM-CW wave, calculates a...
|
|
|
6501417 |
Transceiver assembly used in a Doppler-based traffic radar system
A transceiver assembly is provided for use in a Doppler-based traffic radar system for determining the speed of at least one target. The transceiver assembly includes a cover for receiving therein...
|
|
|
6462702 |
Doppler-based traffic radar system
A Doppler-based radar system and related method are provided for determining the direction and speed of at least one selected target traveling in the same lane as a moving patrol vehicle supporting...
|
|
|
6445337 |
Method for measuring the speed of a vehicle
The invention concerns a method and a device to measure the speed (v) of a vehicle relative to a road surface. To increase the accuracy of the speed measurement and in order to be able to determine...
|
|
|
6335701 |
Radar system and coherent integrating method thereof
Disclosed is a radar system capable of obviating a problem that a sufficient improvement of an S/N ratio could not be obtained in the prior art, and comprising a transmitter/receiver for detecting...
|
|
|
6310573 |
Velocity calculation
Method and device for calculating a velocity of a moving transmitter using Rayleigh-fading of a received radio signal are presented. The method includes the step of making at least two parallel...
|
|
|
6292129 |
Structure of radar system with multi-receiver channel
A radar apparatus is provided which includes a transmitter, a receiver, and a signal processor. The transmitter produces a transmit signal which is so modulated in frequency as to change with time...
|
|
|
6040796 |
Radar system installable in an automotive vehicle for detecting a target object
A modulation signal generating section produces a modulation signal for controlling an oscillation frequency of a voltage-controlled oscillator. The modulation signal generating section comprises a...
|
|
|
6023236 |
Speedometer assisted patrol speed search for DSP traffic radar
A digital signal processor (DSP) traffic radar utilizing pulses from the patrol vehicle's electronic speedometer to steer the DSP's search of Doppler return information for the patrol vehicle's...
|
|
|
6008752 |
Doppler-based traffic radar system
A Doppler-based radar system used to determine the speed of a selected moving target includes an array of selectable filters and related method for determining the speed of the selected moving...
|
|
|
5963163 |
Method and device for frequency-modulated continuous-wave radar detection with removal of ambiguity between distance and speed
In a method and device for frequency-modulated continuous-wave radar detection with removal of ambiguity between the distance and the speed, the radar sends out at least alternately two parallel...
|
|
|
5757308 |
Radar process for the measurement of distances and relative speeds between a vehicle and one or more obstructions
In the particular embodiment disclosed in the specification, a CW radar process for measurement of distances and relative speeds between a vehicle and one or more obstructions including...
|
|
|
5757307 |
Radar system for detecting distance, mutual speed and azimuth of a target obstacle
Receivers 14 and 16 comprise mixers 14b and 16b for mixing reception signals of receiver antennas 14a and 16a with a transmission signal to generate beat signals B1 and B2, respectively. Signal...
|
|
|
5751241 |
Method and apparatus for measuring the speed of a moving body
To measure the speed of a body (1) moving relative to the ground (2) by means of a broad-band Doppler radar (3) fixed to the moving body, two incident radar waves are transmitted successively...
|
|
|
5677695 |
Radar apparatus for detecting a distance/velocity
A radar apparatus for detecting a distance/velocity has a transmitting system for transmitting a signal which is frequency-modulated with a modulating signal having a predetermined recurrence...
|
|
|
5570093 |
Police traffic radar using absolute signal strength information to improve target signal processing accuracy
A police radar utilizing digital data transmission from the antenna unit to a separately housed counting and display unit. The antenna has a double balanced mixer to suppress even order harmonics....
|
|
|
5483242 |
Method for measuring the distance and velocity of objects
In a method for measuring the distance and the velocity of objects employing electromagnetic waves, the frequency of an emitted signal is modulated. The signals received during one rise and one...
|
|
|
5347281 |
Frequency-coded monopulse MTI
A pulse-compression, MTI, doppler-radar system for determining target velty information from a single, frequency-coded uncompressed target-return pulse includes a coded modulator, two pulse...
|
|
|
5276453 |
Method for ambiguity resolution in range-Doppler measurements
A method for resolving range and doppler target ambiguities when the target has substantial range or has a high relative velocity in which a first signal is generated and a second signal is also...
|
|
|
5231403 |
Moving target indicator using higher order statistics
While the computation of high resolution radar images based on higher order tatistics is position insensitive, velocity estimation may be based on the ratios of values of a trispectral slice and a...
|
|
|
5151702 |
Complementary-sequence pulse radar with matched filtering following doppler filtering
A radar generates first and second mutually complementary binary code sequences. The autocorrelation functions of the first and second pulse sequences are selected so that, in the sum of their...
|
|
|
5107270 |
Method and apparatus for increasing a radar's range with improved scan-to-scan integration of doppler filtered signals
Method and apparatus for improving detection ranges of a pulsed radar sys wherein electromagnetic return signal data in range cell order is doppler filtered, digitized and stored in doppler memory...
|
|
|
5014061 |
Adaptive multifrequency signal combining system
Apparatus and methods for combining incoherent signals having different carrier frequencies but a common modulation to obtain a coherent summation of the modulations of such signals are described....
|
|
|
4893287 |
Velocity reference system
A velocity reference system uses a Doppler shift between transmitted and received wave energy to determine the relative speed between the system and a surface or element. Other systems employing...
|
|
|
4231039 |
Radar speedometer
Method and apparatus for measuring the speed of a land vehicle over a surface. A narrow beam of RF energy is directed toward the surface at a substantial angle. Reflected RF energy is mixed with...
|
|
|
4057800 |
Multi-PRF signal processor system
A multi PRF doppler radar processor system for airborne target search radar preferably using five PRF's. The received signal is processed through a bank of doppler filters, and the filter number...
|
|
|
3900871 |
Contiguous filter tracking window for radar
A contiguous filter for use with a HF, phase-coherent, storage-type, pulsoppler radar which employs a spectral compression technique for processing velocity and acceleration signals. A number of...
|
|
|
3898658 |
Acceleration and velocity matching lo generator
An oscillator system particularly suited for use in radar signal processi A fixed frequency spectrum, related to the radar transmitted pulse, is combined with incremental variations of frequency,...
|
|
|
3701989 |
CENTROID SEEKING METHOD FOR DETERMINING AZIMUTH AND ELEVATION ANGLE SIMULTANEOUSLY
The invention relates to a radar system for determining azimuth and elevation simultaneously. The invention utilizes two radar channels and an antenna having a single reflector and offset feeds...
|
|
|
3697988 |
MUNITION BURST DETECTION SYSTEM AND METHOD
A munition burst detection system comprising: a Doppler or frequency shift etector; N frequency filters, said detector means comprising the input to said filters; N signal level detectors, said...
|
|
|
3631486 |
PROCESSING METHOD AND COMMUTATION SYSTEM FOR PULSE DOPPLER RADAR
In a pulse Doppler radar system, a threshold level for target detection is automatically adjusted as a function of clutter and noise. A commutation network for interrogating each of a plurality of...
|
|
|
3474342 |
SIGNAL TRANSLATION SYSTEM
|
|
|
3444557 |
PULSE DOPPLER FILTER BANK INTERROGATION SCHEME
|
|
|
3417397 |
Signal detection integration and level sensing system using thermal effect devices
|
|
|
3309700 |
Radar search system
|
|
|
3192524 |
Speed measuring apparatus
|
|
|
3181149 |
Signal data extraction circuit and method employing magnetic and other solid state devices
|