|
Match
|
Document |
Document Title |
|
|
7620248 |
System and method for validating graphical components of images
A system and method for improved validation of images is provided. Validation of any target image may be performed by creating a model of graphical components of a source image or a reference model...
|
|
|
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...
|
|
|
7606193 |
Methods for implementing a dynamic frequency selection (DFS) feature for WLAN devices
Various regulatory domains promulgate standards to define how wireless devices should operate in certain frequency bands. The 5 GHz spectrum is of particular importance to certain regulatory...
|
|
|
7605745 |
On-vehicle radar device and on-vehicle radar device control system
Provide an on-vehicle radar device that performs transmission control of a monitoring signal, following fixed rules, so that interference with other radar devices can be avoided with certainty. An...
|
|
|
7605744 |
Method for extension of unambiguous range and velocity of a weather radar
A method for extension of unambiguous range and velocity of a weather radar. To avoid pulse overlaying, the pulse repetition time of a single pulse can be extended such that any return echo will...
|
|
|
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, a...
|
|
|
7598902 |
Adaptive weather radar detection system and method used in continental and maritime environments
A method of detecting weather using a weather radar onboard an aircraft. A range is selected at which weather is to be detected. A tilt angle of the weather radar is changed to detect weather below...
|
|
|
7598899 |
Method and apparatus for compression of SAR images
A computer system for compressing synthetic aperture radar (SAR) images includes a database for storing SAR images to be compressed, and a processor for compressing a SAR image from the database....
|
|
|
7592947 |
Generating radar signatures for multiple objects
In one aspect, a method to generate radar signatures for multiple objects includes performing in parallel a shooting and bouncing (SBR) technique to solve for physical optics and multi-bounce...
|
|
|
7589666 |
System and method for processing data in weather radar
Systems and methods that adapt to the weather and clutter in a weather radar signal and apply a frequency domain approach that uses a Gaussian clutter model to remove ground clutter over a variable...
|
|
|
7583222 |
Method for using pulse compression in weather radar
A system and method for processing data related to weather phenomena in a meteorological radar system. The method includes receiving an echo signal generated by transmitting a long pulse and...
|
|
|
7579976 |
Systems and methods for discriminating signals in a multi-band detector
A radar detector is operated to suppress nuisance radar alerts by identifying a first signal in radar band of interest, e.g., having a frequency that is a harmonic of a first nuisance local...
|
|
|
7576683 |
Methods and systems for reducing interference caused by antenna leakage signals
In one aspect, a method of radar altimeter operation including a time dependent gain control is described. The method comprises triggering a Sensitivity Time Control (STC) gain control signal at a...
|
|
|
7570202 |
Polarimetric selectivity method for suppressing cross-track clutter in sounding radars
Methods for suppressing cross-track clutter in a sounding radar utilize polarimetric selectivity in two ways: (1) transmitting full-beam circular polarization and separating the desired signal of...
|
|
|
7570196 |
Apparatus, method, computer program product and system providing asynchronous transmission of communications data using time-gated techniques
A method, computer program product, apparatus and system are provided. In one exemplary embodiment, a method includes: receiving at a second unit periodic energy bursts transmitted by a first unit;...
|
|
|
7551134 |
Methods and systems for tracking signals with diverse polarization properties
Methods and systems for tracking signals with diverse polarization properties address both sensitivity and antenna tracking performance issues. In one embodiment, complex weightings for matching a...
|
|
|
7551119 |
Flight path-driven mitigation of wavefront curvature effects in SAR images
A wavefront curvature effect associated with a complex image produced by a synthetic aperture radar (SAR) can be mitigated based on which of a plurality of possible flight paths is taken by the SAR...
|
|
|
7548750 |
System and method for detection of primary spectrum users
An external primary spectrum user detector (ESUD) is used to take over the role of integral radar detectors, and relieve user devices of the constraints associated with Primary Spectrum User...
|
|
|
7548187 |
Adaptive clutter filtering to improve high sub-clutter visibility radar detection performance
In an aircraft-mounted Doppler radar clutter rejection system, a flexible, sharp band pass filter uses Taylor weighting, an FFT and a module for selecting which of the Doppler cells are to be...
|
|
|
7548186 |
Method and apparatus for detection of an electromagnetic signal reflected from and object
For detection of an electromagnetic signal, which is transmitted from a transmitting antenna ( 1 ), by means of at least two at least essentially identical receiving antennas ( 3, 4 ), whose...
|
|
|
7548181 |
Earth-penetrating radar with inherent near-field rejection
A ground-penetrating radar comprises a transmitter for launching pairs of widely separated and coherent continuous waves. Each pair is separated by a different amount, such as 10 MHz, 20 MHz, and...
|
|
|
7545312 |
Target detection device and its detection method
This invention relates to a target detection device and its detection method, comprising: a transmitting unit for transmitting a detecting pulse to detect target which then reflects the detecting...
|
|
|
7538720 |
Simultaneous savings in bandwidth and energy using waveform design in presence of interference and noise
A transmit signal is output from a transmitter towards a target and towards interference. A combination signal is received at a receiver, wherein the combination signal includes the transmit signal...
|
|
|
7538717 |
Adaptive ground clutter cancellation
The present invention refers to an airborne radar device ( 1 ) comprising at least two antennas ( 2, 3 ) and clutter suppressing means ( 4 ). The radar device is arranged, via the antennas ( 2, 3 )...
|
|
|
7538712 |
Method and apparatus for decompression of SAR images
A computer system for decompressing synthetic aperture radar (SAR) images includes a database for storing SAR images to be decompressed, and a processor for decompressing a SAR image from the...
|
|
|
7535410 |
Weight calculation method, weight calculation device, adaptive array antenna, and radar device
A weight calculation method begins by storing a target reflection signal of a radar pulse received via an antenna in cells corresponding to positions along with a reception timing for a plurality...
|
|
|
7535409 |
Imaging radar method and system
A time-reversal imaging radar system for acquiring an image of a remote target includes an antenna array having a plurality of spaced-apart antennas, and a transceiver coupled to the antenna array...
|
|
|
7528762 |
Signal processing methods for ground penetrating radar from elevated platforms
Methods and systems for using ground penetrating radar (GPR) to obtain subsurface images. The depression angle, frequency, and polarization can all be adjusted for the soil conditions at hand. In...
|
|
|
7522092 |
Radar apparatus and radar system for a vehicle
A radar apparatus including units for transmitting and receiving an electric wave to detect a target, a unit for detecting wave interference caused by surroundings, a unit for controlling the...
|
|
|
7522089 |
Airborne look-down doppler radar tracking of hovering helicopters using rotor features
A system and method is presented for detecting and classifying slow-moving and hovering helicopters from a missile's look-down Doppler radar that is compatible with the existing base of Doppler...
|
|
|
7518547 |
Method and system of interference detection for radar altimeters
A method of detecting interference noise at a radar altimeter. The method comprises periodically emitting a pulse from the pulsed radar altimeter, periodically detecting a noise level in a noise...
|
|
|
7515098 |
Method for developing and using an image reconstruction algorithm for multipath scattering
Described herein is an implementation of the IRAMS processing based upon a multi-delay-resolution framework applied to SAR image data measured at different aspect angles. The power of this new...
|
|
|
7495598 |
Methods and systems for avoidance of partial pulse interference in radar
Systems and methods for avoidance of partial pulse interference in radar. The systems and methods include a radar processor for generating control signals that direct the generation and...
|
|
|
7492312 |
Multiplicative mismatched filters for optimum range sidelobe suppression in barker code reception
Very efficient sidelobe suppression of Barker codes is achieved through the use of a mismatched filter, which is comprised of a conventional matched filter cascaded with a computationally efficient...
|
|
|
7486226 |
Device and a method for accurate radar level gauging
The invention relates to a system, device, and method for using radar signals to measure the distance (h) to a surface from said device, the device comprising a transmitter and a transmitting...
|
|
|
7486225 |
Radar device
A data code generator produces a data code, while a reference code generator produces a reference code. The data code is phase-shifted by the data code generator in a predetermined sweep range,...
|
|
|
7486219 |
Adaptive weather radar detection system and method
A method of detecting weather on an aircraft uses a weather radar system. The method adapts the weather radar system in accordance with a seasonal parameter, a time-of-day parameter, or a location...
|
|
|
7474258 |
System and method for detection and discrimination of targets in the presence of interference
Systems and method of detection and discrimination of targets in the presence of interference are disclosed. A system transmits a signal and then receives signals including interference and...
|
|
|
7474257 |
Multistatic adaptive pulse compression method and system
A radar receiver system includes a receiver, a processor, and a detector. The processor is programmed with a Multistatic Adaptive Pulse Compression (MAPC) algorithm for estimating adaptively a...
|
|
|
7468689 |
System and method for determining position of radar apparatus based on reflected signals
A system and method for determining position of, for example, a robot based on reflected signals comprises a transmitter for transmitting signals in a number of directions within a range of...
|
|
|
7463181 |
Method of suppressing interferences in systems for detecting objects
In a method for suppressing interferences while detecting objects in a target area, a transmitter transmits a sequence of pulses into the target area, and a receiver detects the resulting...
|
|
|
7460056 |
Multi purpose radar surveillance system
The invention discloses a radar system ( 100 ) for the detection of low RCS-objects ( 110, 140, 150, 160, 190 ) such as forest fires, said system comprising a first plurality of stations ( 120 )...
|
|
|
7450056 |
Search/detection apparatus
The search/detection apparatus modulates a carrier signal by a modulation signal, generates a probe signal for detecting the location of a target, and receives the probe signal reflected by the...
|
|
|
7439906 |
Doppler-compensated radar pulse compression processing system and method
A radar receiver system includes a receiver, a processor including a Doppler Compensated Adaptive Pulse Compressor (DCAPC) algorithm, possible other intermediate processing and a target detector....
|
|
|
7439903 |
Method of preventing interference between radars and radar system having interference preventing function
A radar system mounted on a vehicle includes a first radar and a second radar, each having a transmitter-receiver and a signal processor. The transmitter-receiver transmits radar waves to detect...
|
|
|
7436352 |
Radar protection device for wireless networks
A method for radar protection. The method includes recording energy events and calculating differences in recorded energy events to determine pulses. The method further includes sorting intervals...
|
|
|
7427948 |
Combining signals exhibiting multiple types of diversity
Combining signals includes receiving first signals having a first frequency and second signals having a second frequency. A first weight reflecting a signal-to-noise ratio associated with a first...
|
|
|
7424405 |
Method and arrangement for signal processing comprising first and second pulse compression filters
The invention refers to a method and an arrangement for signal processing for a target detecting device ( 1 ) where a return signal ( 8 ) is divided into two parallel branches where a first...
|
|
|
7424269 |
System, method and device of radar detection
Embodiments of the present invention provide a method, apparatus and system of radar detection. The method, according to some demonstrative embodiments of the invention, may include comparing an...
|
|
|
7423581 |
Radar and similar apparatus
A radar device is provided that can reliably display sensed image data of an object, regardless of the state of the object (echo) within a sensed range and of the surrounding environment. A...
|