|
Match
|
Document |
Document Title |
|
|
8179300 |
Method for suppressing clutter in space-time adaptive processing systems
A method surpresses clutter in a space-time adaptive processing system. The method achieves low-complexity computation via two steps. First, the method utilizes an improved fast approximated power...
|
|
|
8179307 |
Method for the multipath passive radar processing of an FM opportunity signal
A signal processing method performs operations of coherent processing making it possible notably to purge the useful signal of the spurious signals (in particular the reference signal and its...
|
|
|
8180392 |
Wireless communication device and signal detection circuit
A wireless communication device that includes a wireless communication unit that performs a wireless communication in a first mode using a first frequency band serving as a first communication...
|
|
|
8174435 |
Methods and apparatus for non-isotropic sea clutter modeling
Methods and apparatus to provide computing, using a processor, sea clutter threshold bias values as a function of range and azimuth, receiving a first shape corresponding to a first region of sea...
|
|
|
8169361 |
Electronically scanned radar system
A sampled beat signal RD is split into a plurality of short-time data SD in the time direction, for each of antenna elements. Interference component frequency of an interference wave is detected...
|
|
|
8170135 |
Methods and apparatus for emitter detection
A method is provided for coordinating detection of emitted signals by a receiver with transmission of signals by a transmitter, wherein the receiver and the transmitter are located on the same...
|
|
|
8164512 |
Gaussian model adaptive processing in the time domain
Embodiments of the present invention provide a Gaussian adaptive filter for ground clutter filtering and signal parameter estimation for weather radars in the time domain. In some embodiments, the...
|
|
|
8159388 |
Method for filtering sea clutter in a radar echo using a hydrographic model
There is disclosed a method for filtering sea clutter in a radar echo using a hydrographic model. The method comprises the steps of determining parameter values of the hydrographic model using the...
|
|
|
8159384 |
Method for examining an ice region or dry region using radar echo sounding
To suppress cross-ambiguities in the examination of an ice region or dry region by means of aircraft- or aerospace-supported radar echo sounding, the region to be examined is overflown by a radar...
|
|
|
8154436 |
Object detection
An object is detected by generating a m-ary primary signal having an irregular sequence of states. Each transition results in the transmission of a pulse encoded according to the type of...
|
|
|
8144051 |
Adaptive sidelobe blanking for motion compensation
A motion compensation method and system is included in a radar antenna system mounted on a moving platform which is subject to pitch, yaw and roll. The radar antenna system includes a main array...
|
|
|
8144050 |
Removing clutter from radar cross section measurements using spectral tagging
A system for performing radar cross section measurements of a target may include a radar system and an antenna associated with the radar system to transmit signals and to receive reflected signals...
|
|
|
8138963 |
Method for detecting targets using space-time adaptive processing and shared knowledge of the environment
A method detects a target in a radar signal using space-time adaptive processing. A test statistic is...
|
|
|
8138962 |
Method for processing measured vertical profiles of the power of the echoes returned following a transmission of radar signals
The method processes measured vertical profiles of the power of the echoes returned following a transmission of radar signals, each measured vertical profile being a function of the sweep angle of...
|
|
|
8134495 |
Transmitter apparatus for transmitting RF pulse signal, transmitter/receiver apparatus incorporating the transmitter apparatus, and receiver apparatus for receiving RF pulse signal
A transmitter apparatus generates a RF pulse signal having alternating high-amplitude pulse-on intervals and low-amplitude pulse-off intervals, and supplies the RF pulse signal as respective...
|
|
|
8125375 |
Radar
A radar that detects the presence or absence of interference when detecting a target based on a frequency spectrum of a beat signal of a transmission signal and a reception signal. Whether or not...
|
|
|
8125374 |
Method of preventing false detections in sensors
Described herein is a method of preventing false detections in sensors pulse-Doppler radar mounted on a moving platform. The method comprises filtering each received burst using Doppler filtering...
|
|
|
8120523 |
Method of eliminating ground echoes for a meteorological radar
The present invention relates to a method of eliminating ground echoes for a meteorological radar. The ground echoes being received from a predetermined area by a radar, the radar illuminating, for...
|
|
|
8106813 |
Multichannel constant envelope orthogonal waveforms using receiver design
An radar apparatus including a first transmitter, a second transmitter, a first receiver, a second receiver, and a control device. The control device is programmed to use both the characteristics...
|
|
|
8102298 |
Ultra-wideband radar waveform calibration for measurements of a heterogeneous material
Embodiments of the disclosed technology comprise a ground penetrating radio device and methods of use for obtaining greater resolution. This is achieved by measuring the composition/reflection off...
|
|
|
8098196 |
Time-compressed clutter covariance signal processor
The time compression processor coding methodology gives rise to an exceedingly fast clutter covariance processor compressor (CCPC). The CCPC includes a look up memory containing a very small number...
|
|
|
8089392 |
Radar coordinate registration
Integration of ionospheric models in over the horizon radars (OTHR) is achieved with very little or substantially no change to existing coordinate registration systems or software by specifying a...
|
|
|
8085185 |
Method of down converting high-frequency signals
A method of down-converting couples a first high-frequency signal to a first detector and to a second detector. An antenna receives a signal and the received signal is provided to at least the...
|
|
|
8082014 |
Devices and methods for detecting proximal traffic
Devices and methods are disclosed which relate to the detection of automobiles within a proximity of a user's automobile. A wireless phone is disclosed which can detect surrounding vehicles and...
|
|
|
8059026 |
Interference avoiding transform domain radar
An ultra-wideband pulse Doppler radar employing a transform domain communication system class of output waveform, a waveform additionally modified for enhanced radar usage. The achieved waveform...
|
|
|
8049663 |
Hardware compensating pulse compression filter system and method
A method to improve a system's signal performance may comprise: generating a first signal, transmitting the first signal, receiving the first signal, and generating a second signal. The method may...
|
|
|
8049661 |
Antenna array with robust failed-element processor
An array antenna has elements spaced less than one-half wavelength in order to produce a spatial pattern which has both visible and invisible regions. The elements in their nominal state are...
|
|
|
8040272 |
Leading and lagging aperture for linear ground penetrating radar array
A radar array linearly traverses an area of ground. Additional radar elements fore and aft of the array detect changes in elevation and orientation of the array. These elements act as a preview for...
|
|
|
8035551 |
Noise correlation radar devices and methods for detecting targets with noise correlation radar
A pulsed compression noise correlation radar uses noise modulation and pulse compression technology to scramble recognizable transmit signal characteristics and reduce transmit energy. The pulsed...
|
|
|
8026839 |
Selective-sampling receiver
A receiver that selectively samples a received signal in order to suppress an interference component of the signal while recovering a desired component. The selective sampling may be accomplished...
|
|
|
8022863 |
Spatially variant apodization (SVA) filter
A method includes correlating a plurality of samples of a waveform into a correlation domain to provide a mainlobe defined by a first subset of a plurality of pulse-compressed samples and a...
|
|
|
8022864 |
Detection of transient signals in doppler spectra
Signal processing is used to detect transient signals in the presence of noise. Two embodiments are disclosed. In both embodiments, the time series from a remote sensor is broken into a number of...
|
|
|
8018372 |
Spread spectrum radar apparatus, method for determining virtual image, and method for suppressing virtual image
The spread spectrum radar apparatus in the present invention (i) includes: a transmission code generator (110); a reception code generator (121) generating a reception code obtained by delaying a...
|
|
|
8014787 |
System and method for discriminating radar transmissions from wireless network transmissions and wireless network having radar-avoidance capability
For use in a wireless network, systems and methods for identifying radar signals and for giving the wireless network a radar-avoidance capability. The system for identifying radar signals includes:...
|
|
|
8013781 |
Method and apparatus for radar surveillance and detection of sea targets
In a radar system using a radar clutter map comprising a plurality of range-azimuth cells containing parameter data values indicative of time averaged echo returns for affecting alarm threshold...
|
|
|
8013782 |
Method, use of said method and arrangements in an electronic support measures system
A method and arrangement for processing signals emitted by a plurality of apparent emitters that is detected by an Electronic Measures System/Direction Finder unit (ESM1). The ESM1 unit is adapted...
|
|
|
7990311 |
Adaptive clutter filter for maritime surface search radar
A time sequence of raw radar data for a region of space is subdivided into a plurality of processing frames. The processing frames are subdivided into a plurality of processing cells 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...
|
|
|
7986966 |
Wireless communication device and signal detection circuit
A wireless communication device includes: a wireless communication unit that is configured to: perform a wireless communication in a first mode using a first frequency band serving as a first...
|
|
|
7982657 |
Ultra-wideband radar waveform calibration for measurements of a heterogeneous material
Embodiments of the disclosed technology comprise a ground penetrating radio device and methods of use for obtaining greater resolution. This is achieved by measuring the composition/reflection off...
|
|
|
7982661 |
Coherent frequency modulated continuous wave radar
A frequency modulated continuous wave (FMCW) radar is described. The radar includes a first discriminator for receiving a portion of the swept frequency signal generated by a frequency sweep...
|
|
|
7978125 |
Method for processing a radar echo signal
A method to process a radar echo signal is described. The method determines the value of at least one target motion parameter by selecting from a plurality of possible test values (VR1, . . . ,...
|
|
|
7973703 |
Method and apparatus for creating and processing universal radar waveforms
A new approach to radar imaging is described herein, in which radar pulses are transmitted with an uneven sampling scheme and subsequently processed with novel algorithms to produce images of...
|
|
|
7969344 |
Methods and systems for improved extraction of a signal from a noisy environment
Methods and systems consistent with the present invention allow identification of a true signal contained in a signal containing the true signal and noise. In general, digital signal information...
|
|
|
7940206 |
Low-cost, high-performance radar networks
A real-time radar surveillance system comprises at least one land-based non-coherent radar sensor apparatus adapted for detecting maneuvering targets and targets of small or low radar...
|
|
|
7924218 |
System for enhanced detection of a target
A method for discrimination of a target from clutter, comprising: providing phase-range data associated with a return pulse of a radar device and second phase-range data associated with a...
|
|
|
7920088 |
Apparatus and method to identify targets through opaque barriers
The present invention is a method and apparatus that provides detection, characterization, and intuitive dissemination of targets. This disclosure combines improvements to ultra-wideband (UWB)...
|
|
|
7916067 |
Removing clutter from radar cross section measurements using spectral tagging
A system for performing radar cross section measurements of a target may include a radar system and an antenna associated with the radar system to transmit signals and to receive reflected signals...
|
|
|
7893868 |
Radar device
A radar device is mounted on a vehicle, for detecting an object, and includes: a transmitting unit for transmitting an electromagnetic wave as a transmitter signal; a receiving unit for receiving a...
|
|
|
7880664 |
Method for correcting weather data
The invention relates to a method, an apparatus and a computer program product for correcting the weather data of radial speed, spectral width and/or differential reflectivity which have been...
|