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8738263 Method of detecting a vehicle speed and related electronic device  
A method of detecting a vehicle speed is disclosed in the present invention. The method includes outputting a detecting wave, receiving a reflecting wave from an external object when the external...
8731123 Demultiplexing device, multiplexing device, and relay device  
A demultiplexing device that includes frequency-conversion and reception low-pass-filter units that perform a frequency converting process and a low-pass filtering process for causing a signal to...
8384587 Radar for aerial target detection fitted to an aircraft notably for the avoidance of obstacles in flight  
A radar being carried by an aircraft includes means for transmitting an RF wave towards a target, said wave having a double form, a first waveform being composed of at least two sinusoids of...
8305256 Radar with PRF alteration on receive  
A radar system achieves unambiguous target range at a given PRI, in conjunction with unambiguous Doppler, by transmitting CW-LFM pulses and then separating the return signal into subpulses,...
8184040 Radar device and a method of detecting a target object using radar  
This disclosure provides a radar device including a transmission module for sequentially transmitting two or more kinds of pulse signals having different pulse widths by a predetermined...
8179303 Signal processing apparatus, radar apparatus, and signal processing method  
A signal processing apparatus for a radar transceiver, which receives a reflected signal generated by a target object in response to a frequency modulated transmission signal, and generates a beat...
8155216 Receiving circuit and receiving method  
A receiving circuit which receives information using a multi-carrier signal comprises a phase rotation amount calculator which calculates a first and a second phase rotation amount of a...
7916068 Generalized inner product method and apparatus for improved detection and discrimination  
Method and apparatus for improving the detection and discrimination of slow moving or stationary range-Doppler spread objects on or in close proximity to the ground (or sea surface). Invention...
7860148 Receiving circuit and receiving method  
A receiving circuit which receives information using a multi-carrier signal comprises a phase rotation amount calculator which calculates a phase rotation amount of a multi-carrier signal included...
RE41630 Master frequency generator  
A system is provided for generating multiple frequencies in a specified frequency band, with a specified step size between frequencies, in which the spectral purity of the frequencies is assured....
7782245 Radar system  
A scanning radar system suitable for detecting and monitoring ground-based targets includes a frequency generator, a frequency scanning antenna, and a receiver arranged to process signals received...
7705772 Traffic radar with target duration tracking  
A traffic radar utilizes digital signal processing (DSP) to determine targets based on signal strength histories. From these histories, a target vehicle having the strongest Doppler return signal...
7652618 Method and system for determining velocity by using variable or distinct sampling rates  
A data processor applies transform processing to a first group of samples at a primary sampling rate, where the first group of samples is within a data window associated with at least one of the...
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...
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...
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...
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...
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...
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...
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...

Matches 1 - 50 out of 69 1 2 >