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7642952 |
Spread spectrum radar apparatus
A spread spectrum radar apparatus includes: a transmission unit which generates a spread signal that is a spectrum-spread signal, using a first oscillator signal, a second oscillator signal, and a...
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7639175 |
Method and apparatus for estimating terrain elevation using a null response
A weather radar system coupled to a weather radar antenna, including a receive circuit for receiving radar returns received by the antenna and a processor for summing portions of the radar return...
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7639172 |
Method for storing measurements made by a radar
The present invention relates to a method for storing measurements of a given type made by a radar, each measurement having been made at a position in a given coordinate system. The method...
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7633430 |
Terrain awareness system with false alert suppression
A terrain awareness and warning system includes electronics for receiving radar returns and providing terrain and/or obstacle alerts or warnings in response to the radar returns. The electronics...
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7633429 |
Monopulse radar signal processing for rotorcraft brownout aid application
A method, system and computer program is disclosed for reducing range and angular ambiguities in a target data matrix output from a real beam monopulse radar sensor within a single beam for use in...
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7626534 |
Unified navigation and inertial target tracking estimation system
A target tracking method uses sensor(s) producing target signals subject to positional and/or angular bias, which are updated with sensor bias estimates to produce updated target-representative...
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7626538 |
Augmented passive tracking of moving emitter
In one embodiment, the disclosure relates to a method for estimating and predicting a target emitter's kinematics, the method including the steps of: (a) passively sampling, at a first sampling...
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7626533 |
Road curvature estimation system
A processor operatively coupled to a speed sensor adapted to generate a measure of a longitudinal speed of a vehicle on a roadway, and to a source of a measure of yaw rate of the vehicle, provides...
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7619557 |
Method and device for filtering a video signal received by a secondary radar, particularly in order to eliminate mode S replies
The invention applies to secondary radars. It makes it possible to carry out filtering when seeking to detect SSR responses, these SSR responses being overlapped by a mode S response. According to...
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7616150 |
Null steering system and method for terrain estimation
A weather radar system coupled to a weather radar antenna, including a receive circuit for receiving radar returns received by the antenna and a processor for summing portions of the radar return...
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7612709 |
Radar device and processing method of the same
A radar device has a clock generator ( 131 ) generating a base clock; a transmitter ( 121 to 125 ) transmitting transmission pulses as gradually increasing a displacement amount with respect to...
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7612711 |
System and method for communicating low data rate information with a radar system
A method is disclosed for transmitting low data rate symbols from a communications terminal to a burst radar transceiver. A plurality of bursts can be emitted from a burst radar transceiver, each...
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7612708 |
RF system for tracking objects
A system for tracking an object in space for position, comprises a transponder device connectable to the object. The transponder device has one or several transponder aerial(s) and a transponder...
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7612710 |
Processing virtual and live tracks to form a virtual-over-live environment
In one aspect, a method includes receiving live radar data, receiving virtual radar data, merging the live radar data and the virtual radar data to form merged data, and tagging the merged data...
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7609197 |
Method for measuring distance and position using spread spectrum signal, and an equipment using the method
By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation 105, the first threshold value...
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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...
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7605747 |
Method for compensating for the positional errors of a sensor
A method for determining or compensating for the positional errors of a sensor tracking a target comprises the steps of operating the sensor to generate sensed information relating to the target...
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7605757 |
Multiple signal receiver
The present invention is an apparatus and method for simultaneously processing multiple communication and navigation signals. An apparatus of the present invention may comprise a single receiver...
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7606294 |
Channel quality estimation method and receiving apparatus
Channel quality can be detected accurately in a wireless transmission system such as an HSDPA method. In the case of estimating a channel quality of a signal transmitted by a Code Division...
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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...
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7598900 |
Multi-spot inverse synthetic aperture radar imaging
Providing multi-spot inverse synthetic aperture radar (ISAR) imagery is disclosed. Embodiments of techniques in accordance with the present disclosure may advantageously improve multiple target...
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7598905 |
Systems and methods for monitoring transponder performance
There are presented various approaches to monitor performance of RF systems and circuitry such as those used in aircraft transponders. Such monitoring may be designed to verify operational...
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7598903 |
Sensor for measuring distance and method for measuring distance using the sensor
A distance measurement sensor and a distance measurement method using the same are disclosed. The distance measurement sensor can use all of a pulse method and a Continuous Wave (CW) method, can...
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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...
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7592948 |
System and method for dual polarization radar with automatic built-in test equipment and calibration
A method of calibrating a dual polarization weather radar system has been developed. The method first generates a transmission pulse from the radar system. The transmission pulse is then modified...
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7592946 |
Level measurement arrangement
A level measurement arrangement for measurement of a level of a product in a container, comprising: a level sensor, having: a mounting element, including a process connector, for mounting the...
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7589665 |
Multistatic method and device for radar measuring a close distance
A multistatic detection device for measuring a distance to an object includes a transmitter and a receiver, each having a high-frequency oscillator and a pulse generator. The pulse generators can...
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7589663 |
System and method for the measurement of the unambiguous roll angle of a projectile
A system for the measurement of an angle of roll of a projectile is disclosed. The projectile has a casing with a rear end, a front end, and a side wall extending therebetween. The system includes...
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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...
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7586435 |
Radar level gauge system using a waveguiding structure with periodically arranged reference impedance transitions
A radar level gauge system, for determining a filling level of a product contained in a tank, said radar level gauge system comprising:
a transceiver for generating, transmitting and...
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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...
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7579977 |
Method of measuring the speed of air by doppler radar
A method of measuring the speed of air in a zone of the atmosphere by the Doppler effect by means of a radar, the method comprising the steps of transmitting bursts of three pulses at different...
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7576679 |
Radar detector with position and velocity sensitive functions
A GPS enabled radar detector dynamically handles radar sources based upon previously stored geographically referenced information on such sources and data from the GPS receiver. The detector...
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7576681 |
Method and system for data fusion using spatial and temporal diversity between sensors
A method and system provide a multi-sensor data fusion system capable of adaptively weighting the contributions from each one of a plurality of sensors using a plurality of data fusion methods....
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7573421 |
System and method for the automatic control of video frame rate
The video rate processor ( 10 ) is made up of an Input Video Stream input ( 11 ), at least one Input Processor/Input Devices ( 12 ), at least one Most Recent Frame Buffer ( 14 ), and at least one...
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7570197 |
Radar device
One of the objects of the present invention is to reduce the size of a radar device mounted on a vehicle body. To achieve the object, one aspect of the invention provides a radar device, which is...
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7570193 |
Detecting and recognizing long duration waveforms
A method and apparatus for processing signal pulses received by a device to identify the presence or absence of a waveform is provided. The waveform may have a long duration and may have a sparse...
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7567206 |
Integrated circuit for measuring the distance and/or velocity of objects
An integrated circuit for measuring the distance and/or velocity of objects, having: a high-frequency signal generating device for generating a first HF signal having a predefined frequency and a...
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7567204 |
Method for determining noise floor level and radar using the same
A method for a radar for detecting a noise floor level of an electric signal corresponding to an incident radio wave received by the radar, the incident radio wave including a return of a radar...
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7567201 |
Vehicle-installation direction detection apparatus enabling accurate detection of target body directions irrespective of vehicle speed
A vehicle-installed direction detection apparatus is controlled in accordance with the vehicle speed, to detect respective directions of one or more target objects by selectively applying...
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7564400 |
Spread spectrum radar apparatus
It is an object of the present invention to prevent the sensitivity of radar apparatus from falling. A spread spectrum radar apparatus which detects an object, includes a carrier wave oscillator...
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7564931 |
Robust maximum-likelihood based timing recovery
A method of timing recovery comprises receiving an input signal, sampling the input signal to produce a plurality of signal samples, detecting the samples to produce an output signal, and...
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7561097 |
Method and system for detection of objects
A method for detection of an object, the method including irradiating a target with two electromagnetic wave energy beams, a first beam at a first frequency and a second beam at a second frequency,...
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7554486 |
System and method for dual polarization radar with automatic built-in test equipment and calibration
A calibration system for the receiver of a dual polarization radar system has been developed. The system includes a radar transmitter that transmits signals in horizontal and vertical polarizations...
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7551121 |
Multi-target-tracking optical sensor-array technology
The multi-target tracking and discrimination system (MOST) fuses with and augments existing BMDS sensor systems. Integrated devices include early warning radars, X-band radars, Lidar, DSP, and MOST...
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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...
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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...
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7548194 |
Hostile intention assessment system and method
A hostile intention assessment system and method wherein a tracking sensor subsystem (e.g., radar) tracks targets relative to a critical asset. Determinations are made to assess if a first target...
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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...
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7548192 |
Method of mapping steel reinforcements in concrete foundations
A method of mapping steel reinforcements in an existing concrete foundation. The method includes determining the depth of the concrete foundation. Further the method entails transmitting radar...
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