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8184041 |
Search of an acquisition face with modified spy radar
Radar beams for searching a volume are selected by determining the central angle and azimuth and elevation extents to define an acquisition face. The number of beams NMBA required to cover the...
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8169359 |
Pulse doppler radar device
A judging and controlling part 110 comprises an operation mode judging unit 111, a pulse width selecting unit 112, and a band limiting width selecting unit 113, wherein the operation mode judging...
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8035546 |
Method for detecting at least one moving object
A method for the detection of at least one moving object in a pre-determined detection zone by way of a speed sensor. The method includes the following steps: determining a detection zone within an...
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8026844 |
Radar visibility model
A method for determining whether a target of interest located within radar resolution cells in a target area of interest is detectable with a radar system from a location and elevation of the radar...
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8022862 |
Processing of pulse-echo measurement signals
Pulse echo signals containing false echoes are processed by forming tracks of multiple received echoes and monitoring these tracks by a recursive filter such as a Kalman filter. A track velocity is...
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7952515 |
Range gated holographic radar
Narrow virtual transmit pulses are synthesized by differencing long-duration, staggered pulse repetition interval (PRI) transmit pulses. PRI is staggered at an intermediate frequency IF. Echoes...
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7911375 |
Doppler beam-sharpened radar altimeter
Systems and methods for Doppler beam sharpening in a radar altimeter are provided. In one embodiment, a method comprises receiving a return signal at a radar altimeter receiver and applying a first...
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7876262 |
Radar system
Electronically steered radar systems such as frequency scanning radars are particularly suitable for detecting and monitoring slow moving, ground-based targets. So-called crawler radar systems are...
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7864101 |
Radar tracking system
According to one embodiment, a radar tracking system includes a radar coupled to a radar processing system. Radar processing system receives images from the radar and that are each obtained at a...
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7864096 |
Systems and methods for multi-sensor collision avoidance
An embodiment of the present invention provides a collision avoidance system for a host aircraft comprising a plurality of sensors for providing data about other aircraft that may be employed to...
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7817080 |
Ranging and communication multifunction system
A ranging and communication multifunction system including a transmission unit and a receiving unit, and integrates two functions of ranging and communication in which the transmission unit...
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7808423 |
Methods for rapid target acquisitions in range measurement systems
A method for acquiring targets within a search area using an electronic device is disclosed. The method involves partitioning a first acquisition time period into a plurality of range gates,...
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7760130 |
Method and system for presence detection
A method for presence detection using a microwave transmitter and a microwave receiver, the method including generating a sequence of clock pulses by means of a pulse generator, feeding the clock...
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7737882 |
Radar device
A radar device can reliably, and rapidly detect dirt adhered to a radome surface without misdetection. The radar device includes a transmit/receive shared antenna (306) that transmits an electric...
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7692572 |
Detecting and ranging apparatus and detecting and ranging program product
A detecting and ranging apparatus and a program product obtain a correct relative velocity vector by a simple calculation based on a relative distance etc. obtained by a plurality of detectors such...
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7652615 |
Methods and systems providing an adaptive threshold for a beam sharpened pulse radar
A radar sensor is described that includes a radar transmitter, a radar receiver configured to receive reflected returns of signals output by the radar transmitter, and a signal processing unit...
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7576684 |
Integrated attitude altimeter
An aircraft electronics system is provided that includes a radar system, a display, an embedded global positioning/inertial navigation system (EGI) and a processor. The radar system is configured...
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7554485 |
Radar sensor and method for distance and cruise control
A radar sensor and a corresponding method for distance and cruise control of a vehicle are described; using this sensor and method, objects in front of the vehicle in the direction of travel are...
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7535412 |
Single pulse imaging radar system and method
A single pulse imaging (SPI) radar system for creating a radar image from a plurality of Doppler phase-shifted return radar signals in a radar environment of moving targets includes a transmitter;...
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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...
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7498975 |
Pulse radar system
A pulse radar system includes: a pulse output circuit that outputs a periodic transmission pulse and a gate pulse having a cycle which is a rational multiple of a cycle of the transmission pulse...
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7486228 |
Methods and systems for piecewise curve fitting or radar altimeter range gate data
A method for compensating for range gate slide with respect to received returns within a radar altimeter is described. The method includes adjusting the amount of overlap between a range gate pulse...
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7474255 |
Target tracking method of radar with frequency modulated continuous wave
The present invention relates to a target tracking method of radar with frequency modulated continuous wave, which transmits a transmitted signal to receive a return wave of the transmitted signal...
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7466261 |
Method and system for radio detection and ranging intrusion detection system
A RADAR system including a set of RADAR apparatuses is disclosed. Each apparatus includes a processor, a pulse unit in signal communication with the processor, a waveform signal generator in signal...
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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...
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7463187 |
Method and system of improving altimeter accuracy by use of a separate peak return signal tracking
A method to control a track gate and a level gate in an altimeter tracking an altitude of an airborne vehicle comprising emitting signals, directed toward a terrain, from the airborne vehicle,...
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7453390 |
Detection device and detection method
A detection device for detecting a body entering a predetermined range has a transmission means for periodically radiating a pulse-like transmission signal by way of an electromagnetic wave to...
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7427944 |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Pulse radar system
A pulse radar system includes: a pulse output circuit that outputs a periodic transmission pulse and a gate pulse having a cycle which is a rational multiple of a cycle of the transmission pulse...
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7425693 |
Spectral tracking
A method of tracking a target. The method includes the steps of acquiring a first spectral image of a scene that includes the target, designating a spectral reference window, in the first spectral...
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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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7274324 |
Apparatus and method of tracking objects in flight
A path in three-dimensions for an object in flight is determined according to a radar signal reflected by the object. The radar signal is transmitted at an offset angle from horizontal sufficient...
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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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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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7205932 |
Method and apparatus for improved determination of range and angle of arrival utilizing a two tone CW radar
An improved system is provided for aiming a shotgun-based or other countermeasure system so as to be able to countermeasure incoming rockets or projectiles. In one embodiment a shotgun aimed and...
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7187320 |
Matched maneuver detector
A target tracking arrangement predicts the state of a target. The predictor may be a Kalman filter. In the presence of a target which is maneuvering, the prediction may be in error. A maneuver...
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7145503 |
Surface wave radar
A surface wave radar system including a receive antenna array (20, 22) for generating receive signals, and a data processing system (24) for processing received data representing the receive...
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7098841 |
Methods and systems for controlling a height of munition detonation
A unit is described that is configured to control detonation of a munition such that the munition is detonated at a desired altitude. The unit includes a radar transmitter, a radar receiver that...
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7095363 |
Pulse radar apparatus
A pulse radar apparatus uses different frequencies, for example, frequencies one of which is a multiple or a submultiple of the other for a signal which becomes a reference of a control pulse for...
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7064704 |
Apparatus for radar
A radar transmits electromagnetic energy in pulse repetition intervals and receives reflections from objects in range gates including Doppler filters. The radar approves desirable ambiguous echoes...
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7046188 |
System and method for tracking beam-aspect targets with combined Kalman and particle filters
Systems and methods of tracking a beam-aspect target are provided. In embodiments, a target is tracked with a Kalman filter while detections are received. After a detection is missed, the Kalman...
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7023331 |
Peripheral monitor for monitoring periphery of vehicle
The invention solves a problem of fluctuation in performance in the conventional peripheral monitor for monitoring periphery of a vehicle that measures a distance to other vehicle or any other...
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7006034 |
Fast and slow time scale clutter cancellation
Target detection in the presence of non stationary clutter is improved by a radar receiver on a moving platform for detecting a target using a plurality of short coherent arrays and a plurality of...
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6995705 |
System and method for doppler track correlation for debris tracking
The present invention is directed to a system and method for Doppler track correlation for debris tracking in PCL radar applications. The disclosed embodiments describe the systems and methods used...
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6977609 |
Technique for changing a range gate and radar coverage
A radar detection process includes computing a derivative of an FFT output signal to detect an object within a specified detection zone. In one embodiment, a zero crossing in the second derivative...
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6856272 |
Methods and apparatus for detecting threats in different areas
Methods and apparatus for early detection and identification of a threat such as individuals carrying hidden explosive materials, land mines on roads, etc. are disclosed. Methods comprise...
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6850186 |
System for determining position and velocity of targets from signals scattered by the targets
The present invention relates to a system for using signals scattered by targets to determine position and velocity for each of the targets and comprises a set of transmitters and receivers of...
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6847324 |
Automated method to remove false echoes due to solar interference
Systems and methods for automated detection and removal of solar interference in real time from NEXRAD or other similar radar products. The radar site latitude and longitude and scan elevation time...
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6822606 |
System and method for spectral generation in radar
This invention relates to a spectral generator and a spectral generation method for receiving pre-processed range-doppler-sensor data and generating at least one noise-reduced high-resolution...
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6750804 |
System and method for detecting and estimating the direction of near-stationary targets in monostatic clutter using phase information
A system and method for detecting a target. The inventive method includes the steps of receiving a complex return signal of an electromagnetic pulse having a real and an imaginary component;...
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6731234 |
Radar anti-fade systems and methods
A method for suppressing ground return radar fading in a radar altimeter is described. The method includes providing a radar gate width which corresponds to an area that is smaller than an antenna...
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