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9024809 Object detection system and method  
The present invention relates to an object detection system and method for determining range and velocity of a target object by transmitting a frequency modulated continuous wave transmission...
9013346 Radar system comprising a switching mode power converter  
A radar system including a switching mode power converter. A pulse radar unit is configured to transmit RF pulses with a pulse repetition frequency. The power converter includes a switching...
9000974 Systems and methods for frequency-modulation continuous-wave and pulse-compression transmission operation  
Systems and methods for allowing dual-mode radar operation. An exemplary transmission system includes a hybrid coupler that receives a signal produced by a synthesizer and couples the received...
8994586 Apparatus and method for detecting target in near field  
An apparatus for detecting a target in near field in accordance with an exemplary embodiment of the present invention includes: an RF transceiver configured to generate a transmitting signal of a...
8686898 System employing a direct digital synthesiser  
A DDS based system, such as a radar, includes means for generating a plurality of transmission signals using a DDS, and means for integrating signals derived therefrom, such as received signals....
8514982 Systems and methods for digitizing multiple channels in a receiver  
Systems and methods for mitigating multipath signals in a receiver are provided. In this regard, a representative system, among others, includes a radio frequency (RF) front-end and at least one...
8391336 Variable length ranging and direction-finding signals constructed from bandlimited kernels and sparse spreading sequences  
To generate a pulse for ranging, a kernel is convolved with a spreading sequence. The spreading sequence is parametrized by one or more ordered (length, sparsity) pairs, such that the first...
8390506 Motor vehicle FMCW radar having linear frequency ramps of different slopes that are set apart, which are associated with different angular ranges  
An FMCW radar locating device includes a transmitting device having a controllable transmitting-signal-generating device generating a transmitting signal having a frequency corresponding to an...
8284099 FMCW signal generation circuit and radar apparatus  
According to one embodiment, an FMCW signal generation circuit includes a voltage-controlled oscillator, a digital phase detector, a differentiator, a comparator, a low-pass filter, an amplifier,...
8237604 Virtual beam forming in ultra wideband systems  
Systems and methods include up-converting a UWB frequency pulse from a UWB radar unit to a V band frequency pulse; transmitting the V band frequency pulse via an active array antenna; receiving a...
8232914 Radar apparatus  
A distance measuring apparatus comprising a transmission antenna to radiate a transmission radio wave; a reception antenna to receive a reflected signal from a target; an analog-to-digital...
8212710 Radar image generation system  
According to one embodiment, a synthetic aperture radar includes a back projection processor that is configured to receive multiple return signals from the radar as the radar is moved with respect...
8188911 Low noise generator for frequency swept signals  
A signal generation system suitable for use in a radar system comprises a local oscillator (LO) and an intermediate frequency (IF) oscillator, wherein the IF oscillator is a Direct Digital...
8164511 Signal processing device, radar device, vehicle control device, and signal processing method  
In order to prevent delays in output of detection results, even when a plurality of frequency modulation methods with different frequency change rates are used, an FM-CW radar device employing...
7994969 OFDM frequency scanning radar  
A radar system is disclosed, which comprises an orthogonal frequency division multiplexing (OFDM) modem and a frequency scanning antenna. In transmit, the OFDM modem modulates radar waveforms and...
7994966 Device for generation of microwaves  
The invention relates to a device for generation of microwaves comprising a virtual cathode oscillator (1) in a coaxial embodiment with an outer cylindrical tube forming a cathode (2) and...
7990313 Radar arrangement  
An FMCW radar has a variable frequency microwave signal source for outputting a microwave signal, a frequency divider, a phase-locked loop, a loop filter and a reference signal source. The...
7952516 System and method for coherent frequency switching in DDS architectures  
The present invention is directed to an integrated circuit device that includes a primary signal synthesizer configured to generate a free-running first digital frequency signal and at least one...
7907084 Radar device and control method of radar device  
This radar device includes: a transmitter to transmit a transmitting signal whose frequency is periodically increased/decreased at a predetermined rate of change; a mixer to generate a beat signal...
7834804 Radar apparatus  
A beat signal normalizing section in a correction control section normalizes a group of sampling data of an input beat signal in one processing group. A phase amount measuring section calculates...
7786927 Radar, radio frequency sensor, and radar detection method  
In a sensor and a radar for measuring the distance and the moving speed of a target by radiating a radio frequency, particularly a millimeter wave, compatibility between cost reduction and high...
7737885 Ramp linearization for FMCW radar using digital down-conversion of a sampled VCO signal  
The invention relates to an FMCW radar system and a method of operating an FMCW radar system to produce a linear frequency ramp. The FMCW radar system includes a VCO, a frequency divider coupled...
7701386 Universal frequency generation and scaling  
Generation of electromagnetic or other waves of any frequency, coherence, modulation, power, etc. and for scaling such waves in frequency by any factor. Generation is achieved by incorporating an...
7679549 Waveform generation method, radar device, and oscillator for radar device  
It is possible to generate D/A conversion voltage in which an error generated by numeric irregularities of a D/A conversion element such as resistor constituting a D/A converter 11 is corrected. A...
7609199 Radar apparatus  
A radar apparatus includes a PN code generator for generating a PN code, a variable delay device for delaying the PN code, an oscillator for generating a high-frequency signal, a transmission...
7602331 Computationally efficient adaptive radar pulse compression system  
One aspect of this disclosure relates to a method for processing a received, modulated radar pulse to resolve a radar target from noise or other targets. According to an embodiment of the method,...
7561098 System and method for estimating airborne radar antenna pointing errors  
Methods and systems for estimating and correcting airborne radar antenna pointing errors. The methods and systems include predicting expected received power from at least one scattering source...
7551988 Method of software defined radio (SDR) waveform/function management  
A designated function or “golden” slot for implementing and managing re-configurable SDR modules is provided. In an embodiment, the slot includes at least one radio frequency (RF) front end for...
7535408 Apparatus and methods for detection of multiple targets within radar resolution cell  
A method and apparatus is operative for multiple target detection in a radar system which employs a radar waveform of two or more frequency diverse subpulses. The apparatus adds coherent...
7482971 Time-of-flight-ranging system and method for calibrating such a system  
An embedded calibration mechanism and method for a time-of-flight ranging system. The calibration mechanism (200) comprises a channel (202) having known characteristics. Periodically or as part of...
7355484 Oscillator and radar apparatus using the same  
An oscillator and a radar apparatus that includes a resonator electro-magnetically connected to a micro strip line and a rotor connected to the resonator by capacitance. The bottom surface of the...
7345803 Optical modulator and optical modulating method  
In an optical modulation device (10) having an electrical/optical interaction region (11), an electrical signal line (3) is connected to an electrical signal input terminal (2a), another...
7345619 Generating event signals in a radar system  
A radar system having a transmit signal path and a receive signal path and an event generator which is responsive to command signals provided by a digital signal processor (DSP) is described. The...
7283087 Radar having a transmission oscillator which can be excited quasi-phase coherently by an evaluation oscillator  
A radar is provided with transmitting means for transmitting a signal and with receiving means for receiving a reflection of the transmitted signal. The inventive radar is characterized in that...
7265712 Method and apparatus for processing high time-bandwidth signals using a material with inhomogeneously broadened absorption spectrum  
Techniques for analog processing of high time-bandwidth-product (TBP) signals use a material with an inhomogeneously broadened absorption spectrum including multiple homogeneously broadened...
7239266 Radar altimeter  
The present invention provides a radar altimeter system with a closed loop modulation for generating more accurate radar altimeter values. The system includes an antenna, a circulator, a receiver,...
7221309 FM-CW radar system  
In an FM-CW radar system, a frequency modulating said modulating wave output from said modulating signal generator has a frequency variation skew with respect to a time axis (modulation skew), and...
7049999 Modulation circuit for a vehicular traffic surveillance Doppler radar system  
A modulation circuit for a traffic surveillance Doppler radar system is disclosed. In one embodiment, the modulation circuit is utilized in a vehicular traffic surveillance Doppler radar system...
7002512 FM-CW radar system which discriminates between signals related to a target object and signals not related to a target object  
In an FM-CW radar system, a frequency modulating wave output from said modulating signal generator has a frequency variation skew with respect to a time axis (modulation skew), and the radar...
6989782 Ultra-wideband radar system using sub-band coded pulses  
Methods and apparatus are provided for radar systems using multiple pulses that are shorter than the expected range delay extent of the target to be imaged. In one implementation, a method for...
6965341 High resolution SAR processing using stepped-frequency chirp waveform  
A stepped-frequency chirped waveform improves SAR groundmapping for the following reasons. Range resolution in SAR image is inversely proportional to the transmitted signal bandwidth in nominal...
6933880 Programmable source of pulse trains on intermediate frequency and IFF emitting assembly using it  
The invention relates to a pulse-modulated source with adjustable parameters and to its use in an IFF or secondary radar emitting assembly. The architecture of currently used IFF emitting...
6859167 Method for increasing the unambiguous distance in FSK radars  
A method used to increase the ambiguity distance of FSK radars implements a waveform made up of patterns consisting of frequency plateaux whose frequencies are alternately shifted by plus or minus...
6744402 High-frequency diode oscillator and millimeter-wave transmitting/receiving apparatus  
An object of the present invention is to facilitate positioning of a metal member for mounting a high-frequency diode and of a dielectric strip, thereby remarkably improving control of oscillation...
6707419 Radar transmitter circuitry and techniques  
A radar transmitter includes a digital ramp generator circuit for generating a VCO control signal. The ramp generator includes a digital signal processor and a digital-to-analog converter. In one...
6697011 Doppler radar device  
A doppler radar device having comparing means 142 for comparing the level of pulse signal to be transmitted, sampled through a burst gate, with a predetermined threshold value and search means 143...
6577270 Radar transceiver  
A compact millimeter wave radar transceiver at low cost is provided wherein a direct current voltage applying circuit is coupled to a high frequency line to apply a fast pulse wave without losing...
6366236 Neural network radar processor  
A neural network radar processor (10) comprises a multilayer perceptron neural network (100.1) comprising an input layer (102), a second layer (122), and at least a third layer (124), wherein each...
6317075 FMCW sensor  
An FMCW sensor in which a transmission signal is generated from a high frequency of a fixed frequency oscillator and a modulated, low frequency of a second oscillator. The modulated frequency is...
6317074 High range resolution radar through non-uniform sampling  
A frequency modulated continuous wave (FMCW) radar system having a voltage controlled oscillator (VCO) for transmitting a RF signal and a linearizer for linearizing the VCO. The FMCW receives the...

Matches 1 - 50 out of 150 1 2 3 >