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Match Document Document Title
8988277 Dual monopulse/interferometer radar AESA aperture  
A dual monopulse/interferometer antenna and radar system. In one example, the antenna includes an active electronically steered monopulse array, and is configurable into an interferometer mode...
8933836 High speed angle-to-target estimation for a multiple antenna system and method  
A multiple beam receiving system provides an angle estimate to targets. The system tracks movements of the targets over time and generates calibration information. The system uses the calibration...
8854257 Conformal array, luneburg lens antenna system  
A Luneburg lens is used in conjunction with a patch antenna array. The patch antenna array is conformed or adapted to cover a portion or backside of the Luneburg len's surface with the backplane...
8816895 Target-tracking radar classifier with glint detection and method for target classification using measured target epsilon and target glint information  
Embodiments of a target classifier and method for target classification using measured target epsilons and target glint information are generally described herein. The target classifier is...
8274427 Radar device  
A radar device including: a reception antenna that receives radio waves, includes at least three antennas and is arranged so that the phase center points thereof form an isosceles triangle; an...
8274425 Single channel semi-active radar seeker  
The disclosed approach provides a low-cost approach by employing a single channel receiver for a direction-finding missile, rather than a conventional four-channel system. It employs...
8269665 Monopulse angle determination  
Modern tactical radars frequently use phase shifters to electronically specify or steer the spatial position of the antenna beam without requiring mechanical motion of the antenna. These phase...
8094059 Method for determining the angular aperture corresponding to the extent in a plane of an object seen by a radar antenna  
The present invention relates to a method for determining the angular aperture corresponding to the extent in a plane of an object seen by a radar antenna, the object being situated at a given...
8035548 Evaluation method, particularly for a driver assistance system of a motor vehicle, for object detection using a radar sensor  
An evaluation method, e.g., for a driver assistance system of a motor vehicle, is provided for object detection using a radar sensor, which synchronously emits at least two separate radar beam...
7999726 Antenna pointing bias estimation using radar imaging  
A system for estimating an antenna boresight direction. The novel system includes a first circuit for receiving a Doppler measurement and a line-of-sight direction measurement corresponding with...
RE42472 Main beam alignment verification for tracking antennas  
A method for main beam alignment verification includes providing data pertaining to one or more patterns associated with an antenna, measuring power levels of a signal acquired by the antenna, and...
7911371 Extraction of relative signals from closely spaced targets in a monopulse system  
Systems and methods are provided for extracting relative signal parameters representing two closely spaced targets from monopulse scan data. A maximum quadrature angle value from the scan data is...
7868818 Multi-element antenna  
An antenna is provided, in combination with an associated switch array, the antenna comprising a number of antenna elements mounted above a ground plane for providing coverage over a predetermined...
7859451 Method and system for monopulse radar target angle determination  
A method for determining target angles based on data received from a monopulse radar array antenna includes receiving from a beamformer that generates beams from signals generated by the monopulse...
7834803 Electronically steered, dual-polarized, dual-plane, monopulse antenna feed  
A method and apparatus for electronically steering a RADAR beam across an array of feed horns by moving the phase center of the beam to different origination points on the array—each origination...
7671789 Method and system for target detection and angle estimation based on a radar signal  
A method for target detection and angle estimation in a radar system includes receiving a signal from a radar array; based on the received signal, performing monopulse beamforming to obtain one or...
7667638 Detection and resolution of closely spaced targets in a monopulse system  
Systems and methods are provided for determining first and second azimuth angle values representing two closely spaced targets. Monopulse radar scan data is produced and processed to provide...
7612706 Monopulse radar apparatus and antenna switch  
An antenna unit includes at least one transmission antenna and plural reception antennas. A receiver detects information including azimuth information for a target, based on an output from the...
7330149 Method for locating multiple angle sources using a monopulse radar  
A monopulse radar tracking method which analyzes boresight error information provided a monopulse radar to determine a location for two targets. The monopulse radar tracking method analyzes the...
7250902 Method of generating accurate estimates of azimuth and elevation angles of a target for a phased—phased array rotating radar  
A method and apparatus for generating accurate estimates of a radar target's azimuth and elevation angles for a phased-phased array rotating radar. Scan modulated coherently integrated (SMCI)...
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...
7161530 System and method for radar calibration using antenna leakage  
The system and method for radar calibration using antenna leakage is a simplified means of calibrating the channels in amplitude and phase using natural signal leakage between antennas. It...
7091900 Radar  
A radar of the present invention has: (1) an antenna unit for transmitting a radio wave and receiving a reflected wave of the radio wave; (2) rotating means for rotating the antenna unit about an...
7082172 Digital signal gating apparatus and method in a pulse receiver system  
A digital signal gating method and apparatus of a preprocessor in a detection system wherein the detection system includes a central processing unit, a main memory and a receiver, whereby the...
7053815 Radar tracking system  
A radar tracking system for an anti-aircraft, missile, including angle tracking, doppler tracking and range tracking feedback loops operating on sum and difference channels. Fast fourier transform...
7038615 Efficient technique for estimating elevation angle when using a broad beam for search in a radar  
A method and apparatus for estimating elevation angle when using a broad search beam such as a cosecant-squared beam is provided. The range of a target detected during a search with a broad beam...
6937186 Main beam alignment verification for tracking antennas  
A method for main beam alignment verification includes providing data pertaining to one or more patterns associated with an antenna, measuring power levels of a signal acquired by the antenna, and...
6853330 Inverse precision velocity update for monopulse calibration  
A radar system derives a correction for an actual boresight (311) of a radar monopulse antenna mounted on a moving platform from Σ data and Δ data generated with respect to an a priori known,...
6853329 Monopulse radar system  
A monopulse radar system for detecting an azimuth depending upon amplitude difference or phase difference between signals respectively received by plural receiving antennas, includes: a...
6771205 Shipboard point defense system and elements therefor  
A combined defense and navigational system on a naval vessel is disclosed. The disclosed system includes a track-while-scan pulse radar which is controlled to provide either navigational...
6697009 Adaptive digital beamforming architecture for target detection and angle estimation in multiple mainlobe and sidelobe jamming  
A system and method for detecting a radar target of interest in the presence of radar jamming interference include a sub-array beamformer, a sum and difference beamformer, a weight calculator, a...
6661366 Adaptive digital sub-array beamforming and deterministic sum and difference beamforming, with jamming cancellation and monopulse ratio preservation  
A radar system and technique provide the capability to detect a target of interest and maintain the detection in the presence of multiple mainlobe and sidelobe jamming interference. The system and...
6630902 Shipboard point defense system and elements therefor  
A radar receiver is shown wherein the frequency of a first local oscillator is changed to bring an intermediate frequency signal representative of a moving target into frequency coincidence with a...
6618008 Monopulse phased array system  
A monopulse phased array system comprises antenna elements with T/R modules controlled a beam steering computer. The space in which the antenna elements are arranged is divided into quadrants...
6603421 Shipboard point defense system and elements therefor  
A combined defense and navigational system on a naval vessel is disclosed. The disclosed system includes a track-while-scan pulse radar which is controlled to provide either navigational...
6567034 Digital beamforming radar system and method with super-resolution multiple jammer location  
In a radar system, sampled aperture data are received from an antenna array. The sampled aperture data include data that do not correspond to echo returns from a beam transmitted by the antenna. A...
6498581 Radar system and method including superresolution raid counting  
A system identifies a number of targets within a main beam of an antenna array that transmits the main beam and receives echo returns from the main beam. A covariance matrix is generated using the...
6476760 Device for detecting angle of elevation error in a multiple beam radar sensor  
A method and a radar sensor for determining an elevation angle error of a multibeam radar sensor are described. In order to detect an elevation angle of the multibeam radar system with respect to...
6456238 Dynamic signal routing in electronically scanned antenna systems  
An antenna array system with dynamic signal routing to a set of receivers. A monopulse electronically scanned antenna (ESA) has a plurality of antenna elements divided into subarrays. ESA beam...
6404379 Matrix monopulse ratio radar processor for two target azimuth and elevation angle determination  
A method and system for identifying the locations of plural targets lying within a main beam of a monopulse antenna including four ports for generating sum, elevation difference, azimuth...
6369746 Simultaneous nulling in low sidelobe sum and difference antenna beam patterns  
A radar system includes a null processor coupled to transmit receive modules. The null processor inserts nulls in the sum pattern at locations for suppressing a jamming source. The null processor...
6297763 Method of optimizing the coverage area of a sensor  
A method is provided of optimizing, within an area which itself contains a number of part areas, the coverage of a sensor which has an angle-dependent range in a least one plane, and which sensor...
6195035 Cylindrical monopulse  
A monopulse antenna system comprising an inner antenna and an outer antenna disposed symmetrically about a central axis of symmetry. A central aperture is located at the axis of symmetry through...
6133866 Method of operating monopulse radar  
A method of operating a radar to track echo signals from a target in the presence of a barrage jammer is shown to comprise the steps of actively determining the apparent direction of the...
6087974 Monopulse system for target location  
A monopulse system generates sum (Σ), elevation difference (ΔEL), azimuth difference (ΔAZ), and double difference (ΔΔ) signals, and generates a covariance matrix. The covariance matrix is...
6005512 Array antennas with low sum and difference pattern side lobes and method of producing same  
A radar system and method for obtaining low sum and difference side lobe patterns from a phased array antenna comprising radiators distributed amongst four quadrants A, B, C, and D. The quadrants...
5847675 Radar with a wide instantaneous angular field and a high instantaneous angular resolution in particular for a missile homing head  
This radar with a wide instantaneous angular field and a high instantaneous angular resolution, in particular for a missile homing head, includes essentially: a transmitting antenna with a...
5831570 Radar resolution using monopulse beam sharpening  
A method and apparatus for improving resolution of targets in a monopulse radar beam.
5808578 Guided missile calibration method  
A method for calibrating the radar system includes the steps of: replacing stored statistically generated "average" error correction coefficients with error correction coefficients personal to a...
5784022 Process and amplitude or phase monopulse radar device for locating flying objects  
The process and the corresponding phase or amplitude-single pulse radar device are used to locate a first and possibly a second target (TT1, TT2) detected by the radar beam from the direction x1,...

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