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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...
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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...
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7417579 |
Weather radar with significance determination
A weather radar system includes processing electronics. The processing electronics sense weather and determine significant weather based upon the altitude of the weather. The altitude of the...
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7414572 |
Method and apparatus for signal detection
A method and apparatus for signal detection is provided herein. During operation logic circuitry will determine if a de-sensing signal exists within any received signal and, if a de-sensing signal...
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H002222 |
Normalized matched filter—a low rank approach
This invention addresses the problem of radar target detection in severely heterogeneous clutter environments. Specifically, we present the performance of the normalized matched filter test in a...
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7403153 |
System and method for reducing a radar interference signal
A system and method are provided to reduce an interfering signal in a radar return signal for a frequency modulated continuous wave (FMCW) radar. Once the interfering signal is detected, an extent...
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7397415 |
System and method for detecting and de-interleaving radar emitters
A method of classifying radar emitters includes the steps of: (a) receiving pulses from multiple radar emitters; (b) categorizing received pulses based on pulse data descriptors (PDWs); (c) forming...
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7385553 |
Process for mapping multiple-bounce ghosting artifacts from radar imaging data
Described herein are frequency-domain back-projection processes for forming spotlight synthetic aperture radar (“SAR”) images that are not corrupted by the effects of multiple-bounce ghosting...
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7379018 |
System and method for verifying a radar detection
The method and system provide provisions for generating a respective detection state value associated with each of a plurality of RF receive beams. A first state value is indicative of a detection....
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7379017 |
Micro movement pulsed radar system and method of phase noise compensation
A pulsed radar system uses phase noise compensation to reduce phase noise due to drift of the reference oscillator to enable detection of micro movements and particularly human motion such as...
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7369083 |
Method for performing bistatic radar functions
A bistatic radar system having a transmitter that generates unique signals at spatially independent transmitter degrees of freedom and a receiver that filters the signal at each receiver degree of...
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7362257 |
Wideband interference cancellation using DSP algorithms
A method and system is provided for detecting and characterizing pulsed threat radar emitters through heavy in-band interference. System includes an advanced digital signal processing method...
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7362259 |
Radar antenna array
For suppressing secondary lobes in pulsed radar systems, the antenna characteristics of the transmitting antenna and the receiving antenna are designed so that the dominant secondary lobes appear...
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7345620 |
Method and device for the adaptive regulation of power
A method and a device for adaptively controlling power in a radar device having a radar transmitter and a radar receiver are provided, in particular for applications in vehicles. The radar signals...
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7345625 |
Radar polarization calibration and correction
A polarimetric radar system transmits a signal which is nominally the desired polarization, but which may deviate therefrom. A calibration operation is performed using a symmetrical radar...
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7345624 |
Pulse wave radar device
To achieve a purpose of the present invention, a pulse wave radar device related to the present invention modulates a first transmitting pulse and a second transmitting pulse which are separated...
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7339519 |
Methods and apparatus for target radial extent determination using deconvolution
Methods and apparatuses for target radial extent determination using deconvolution are presented. One embodiment features a method for determining a radial extent of an target using an active...
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7339518 |
FMCW radar device and method for detecting interference
An FMCW radar device executes a frequency analysis for a beat signal in a frequency increase interval and a frequency decrease interval, to obtain frequency components in a predetermined high...
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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...
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7336219 |
System and method for generating a radar detection threshold
A method for generating a radar detection threshold includes computing a first plurality of percentile values associated with frequency domain values of frequency domain signals. The first...
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7336220 |
Method and apparatus for equalizing broadband chirped signal
In order to generate a signal for canceling a chirped signal, a transmitter generates a cancellation signal along with the transmitted signal, using a single term variable complex gain multiplier...
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7327307 |
Radar system with adaptive waveform processing and methods for adaptively controlling the shape of a radar ambiguity function
An adaptive waveform radar system transmits a selected waveform of a family of related waveforms and either phase shifts or bit shifts the radar return signal for correlating with the other...
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7327304 |
System and method for minimizing background noise in a microwave image using a programmable reflector array
A microwave imaging system captures a microwave image of a target and minimizes noise in the microwave image using phase differentiation. A reflector antenna array is provided including a plurality...
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7324042 |
Monostatic radar beam optimization
A method and system for optimizing transmit beam and receive beam antenna radiation patterns. The method includes inputting initial estimate of beam weights for a transmit beam and a receive beam...
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7312746 |
Method and system for calibration of a radio direction finder
A calibration method and a system for providing calibration data for use with a direction finder are provided. The method comprises providing a relative motion of a calibration receiver in a circle...
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7298316 |
Apparatus and method for instantly automatic detecting clutter blocks and interference source and for dynamically establishing clutter map
An apparatus for detecting clutter blocks and an interference source for dynamically establishing a clutter map includes a clutter block detecting module accumulates a plurality of range cell data...
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7298315 |
Radar pulse compression repair
A radar pulse compression repair (RPCR) system includes a receiver for receiving a radar return signal, a matched filter for applying matched filtering to the radar return signal to generate a...
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7295145 |
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...
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7286080 |
High-frequency transmitting/receiving apparatus, radar system having the same, and vehicle and small boat equipped with the radar system
Provided is a millimeter-wave transmitting/receiving apparatus of pulse-modulation type in which pulse-modulated millimeter-wave signals for transmission are prevented from being outputted to a...
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7286079 |
Method and apparatus for detecting slow-moving targets in high-resolution sea clutter
An apparatus for non-coherently detecting slow-moving targets in high resolution sea clutter includes a binary detector for converting high resolution radar returns, produced in response to a radar...
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7274326 |
System for digital multi-bandwidth intermediate frequency processing and tracking
Signal processing systems for radar installations are provided for simultaneous processing of one or more IF signals of dynamically varying frequency and bandwidth with a single analog signal path....
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7259714 |
Unique space time adaptive system (USS)
A method of detecting radar returns and measuring their parameters with or without clutter present and no clutter cancellation employed which includes transmitting at least one pulse; processing...
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7250900 |
System and method for sidelobe reduction using detect-and-subtract techniques
A radar system and method for detecting targets using pulse-compressed signals is disclosed. In one application, the systems and methods can be used to detect one or more relatively small targets...
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7236123 |
System for enhanced detection of a target
Disclosed herein is a computer-readable medium having stored thereon computer-executable instructions for providing phase-range data associated with a return pulse of a radar device and second...
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7236124 |
Radar system and method for reducing clutter in a high-clutter environment
A radar system transmits an environment-sensing pulse and processing circuitry time-reverses an order of radar return samples and generates a convolution matrix from the radar return samples...
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7236125 |
Method for reducing angular blur in radar pictures
A method for reducing angular blur in radar pictures achieved in range bin based detection systems includes measuring a variable S(x, y) such as amplitude or power as a function of an angle x and a...
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7236790 |
Distributed radar detection for WLAN
A base station that monitors for radar signals may reassign the monitoring operation to one or more wireless mobile devices whenever channel load exceeds a first value. The one or more wireless...
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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...
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7218272 |
Reducing antenna boresight error
Reducing antenna boresight error includes receiving radar pulses reflected from the ground, where pulses are emitted from the antenna of a radar system, reflected by the ground, and received by the...
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7215278 |
Radar frequency hopping
Apparatus and methods for adjusting or “hopping” the center frequency or the pulse repetition frequency of a radar system improve the co-locatability of multiple radars commonly located in a...
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7212150 |
Doppler-sensitive adaptive coherence estimate detector methods
A method is provided for detecting a target signal of a specific known form in the presence of clutter. The method includes dividing a set of initial training data, derived from returns from a...
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7205928 |
Automatic weather radar system and method
Methods and apparatus are provided for operating a radar system to provide a thunderstorm image to a pilot. The method comprises using one or more radar scans depending upon the aircraft altitude,...
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7202812 |
Technique for compensation of transmit leakage in radar receiver
A radar system ( 500 ) radiates a radar transmit signal, has a radar signal receiver ( 503 ) and a canceller ( 505 ) for canceling leakage of the transmit signal into the radar signal receiver (...
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7199752 |
Phased null radar
A method for reducing the interference between a source transmitting pulses and equipments having nominal bandwidths which are outside the nominal bandwidth of the transmitted pulses, but which...
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7196657 |
Radar system using RF noise
A radar system that utilizes predetermined, pseudorandom, or random waveforms that may be substantially matched to the impulse response of the radar and any surrounding clutter such that the...
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7187321 |
Interference determination method and FMCW radar using the same
Occurrence of interference is detected using sampled amplitude data obtained by oversampling a beat signal. It is detected by comparing the absolute value (|VD|) of variation in the sampled data...
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7167810 |
Analytical estimation of performance of a sensor system
The invention relates to a method for an analysis tool for analysis of the sensor performance of a system of sensors, which method comprises analytical calculation of a sensor system's measurement...
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7161528 |
Device and method for the suppression of pulsed wireless signals
The invention relates to a method of suppressing pulsed signals in particular of DME or TACAN type present in the radio signals received (Ue) by a radio-frequency receiver, characterized in that...
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7161529 |
Dual forward scattering method for modeling multipath propagation
Analysis of electromagnetic (or acoustic) multipath propagation inventively focuses upon the transmitter-to-target propagation (transmitted propagation reaching target via both direct pathway and...
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7154434 |
Anti-personnel airborne radar application
An anti-personnel airborne radar application for ultra slow target tracking is provided. The anti-personnel airborne radar application includes a rotorcraft and a signal processing system. The...
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