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| Number | Title | Issue Date |
| 8068053 | Low-profile lens method and apparatus for mechanical steering of aperture antennas A low-profile lens element for steering a beam is provided. Specifically, the low-profile lens element is mechanically rotatable such that a beam can be steered in any direction within three-dimensional space. The lens element may include a number of discrete portio... | 11/29/2011 |
| 7880668 | Automated radar elevation angle configuration According to an embodiment of the disclosure, a computer implemented method of configuring a land-based radar system for scanning a scan region is disclosed. The method comprises dividing the scan region into a grid of blocks and obtaining a terrain elevation data f... | 02/01/2011 |
| 7656345 | Low-profile lens method and apparatus for mechanical steering of aperture antennas A low-profile lens element for steering a beam is provided. Specifically, the low-profile lens element is mechanically rotatable such that a beam can be steered in any direction within three-dimensional space. The lens element may include a number of discrete portio... | 02/02/2010 |
| 7633431 | Alignment correction engine A method for determining an adjusted position of a component of an aerial vehicle in response to a situational parameter is provided. The system includes a component mounted on an aerial vehicle, a control system operably coupled to the component, and a processor op... | 12/15/2009 |
| 7561098 | System and method for estimating airborne radar antenna pointing errors Methods and systems for estimating and correcting airborne radar antenna pointing errors. The methods and systems include predicting expected received power from at least one scattering source using terrain elevation information, transmitting a radar signal to the a... | 07/14/2009 |
| 7421321 | System for obtaining vehicular information System for obtaining information about a vehicle or a component therein includes sensors arranged to generate and transmit a signal upon receipt and detection of a radio frequency (RF) signal and a multi-element, switchable directional antenna array. Each antenna el... | 09/02/2008 |
| 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 weather can be compared to a flight path to determine its significance. A d... | 08/26/2008 |
| 7379707 | System for concurrent mobile two-way data communications and TV reception A low profile mobile in-motion antenna and transmit/receive terminal system for two-way “VSAT” type satellite communication using FSS service, preferably in Ku band, supporting at the same time TV signal reception from the same satellite or a separate DBS satell... | 05/27/2008 |
| 7340277 | Adaptive antenna for controlling the weighting on a plurality of antenna elements An optical subscriber system according to the present invention has an adaptive antenna having a plurality of antenna elements, for controlling the weighting on the antenna elements thereby to radiate beams that are adapted to radio wave environments, a position est... | 03/04/2008 |
| 7324046 | Electronic beam steering for keyhole avoidance An airborne radio frequency (RF) antenna terminal system includes a two-axis gimbals control system and a phased array antenna. The phased array antenna electronically steers the receive and transmit beams using phase shifters. The electronically steered beams provi... | 01/29/2008 |
| 7312854 | Position sensitive photoelectric sensor and method of setting reference distance in the same In a position sensitive photoelectric sensor that calculates a distance to a target based on a triangular range finding using a light and outputs a result compared with a reference distance, first the reference distance Dref is set roughly by using a light receiving... | 12/25/2007 |
| 7275431 | Vehicle mounted system for detecting objects A method for object detection using vehicle-mounted sensors is provided, the sensing ranges of which sensors overlap at least partially. In this context, signals of at least two sensors having sensing ranges with essentially identical coverage, and additional signal... | 10/02/2007 |
| 7277047 | Reduced state estimation with biased measurements This invention relates to sate estimation after processing measurements with unknown biases that may vary arbitrarily in time within known physical bounds. These biased measurements are obtained from systems characterized by state variables and by multidimensional p... | 10/02/2007 |
| 7259713 | Ranging systems A continuous wave ranging system, comprising a modulator 2 for modulating an r.f. carrier wave in accordance with a pseudo random code, a transmitting antenna 5 for radiating the modulated signal towards a target, a receiving antenna 6 and recei... | 08/21/2007 |
| 7242345 | Method for controlling a radar antenna A method is described for detecting an object with target radar. After the first detection of an object, the antenna is tilted. The original direction towards the object is restored by electronically steering the emitted beam. The beamsteering is obtained by changin... | 07/10/2007 |
| 7239265 | Method for evaluating and controlling a radar installation A method is disclosed for evaluating the terrain surrounding a radar site. The method comprises to calculate the radar horizon around a radar site from stored terrain elevation information. The information obtained can be used for controlling the scanning profile of... | 07/03/2007 |
| 7218273 | Method and device for boresighting an antenna on a moving platform using a moving target A technique for boresighting an antenna mounted on a moving platform is described. The technique uses a concurrently moving calibration target. Target navigation data and platform navigation data are used to compensate for movement of the target and the platform. Th... | 05/15/2007 |
| 7210392 | Autonomous weapon system An autonomous weapon system including weapon (9) and weapon mounting system (7, 8) operable to point the weapon (9) in accordance with input control signals. The weapon system includes a sensor (2) to acquire images and other data from a ... | 05/01/2007 |
| 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, a single upward tilted scan at or below a datum level of about 15,000... | 04/17/2007 |
| 7196653 | Imaging apparatus and method An imaging apparatus has transmitter illuminating a selected surface with a radar beam footprint, and processor for profiling/processing the radar returns so as to derive attitude information in real time about a number of predefined axes associated with the radar w... | 03/27/2007 |
| 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 detector is coupled to receive residuals representing the difference betw... | 03/06/2007 |
| 7180443 | Reduced state estimator for systems with physically bounded parameters State estimation of a system having multidimensional parameters, which are unknown, arbitrarily time-varying, but bounded, in addition to state variables, is performed by initializing the state estimate and matrices representing its covariance and bias coefficients ... | 02/20/2007 |
| 7132976 | Automotive radar An automotive radar which can process signals at high speed to detect a target in a wide angle range is provided. The automotive radar comprises a transmitting antenna which emits an electromagnetic wave, two receiving antennas which receive the electromagnetic wave... | 11/07/2006 |
| 7129885 | Adaptive weather radar detection system and method used in continental and maritime environments A method of adapting weather radar thresholds is disclosed. The method comprises generating a location from a location sensor, retrieving information representative of a weather type from a database, based on the location, and adjusting, automatically, the threshold... | 10/31/2006 |
| 7119732 | Bistatic and multistatic system for space situational awareness Provided is a bistatic and multistatic system for detecting and identifying a target in close proximity to an orbiting satellite. An electromagnetic fence is established to surround the satellite, using a ground-based communication uplink from a gateway antenna. A c... | 10/10/2006 |
| 7095376 | System and method for pointing and control of an antenna A method is disclosed for directing an antenna mounted in a restricted radome on an aircraft. The method can include the operation of determining whether the antenna is directed in a keyhole. A further operation can involve controlling the antenna using an elevation... | 08/22/2006 |
| 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 axis along a direction of transmitt... | 08/15/2006 |
| 7071867 | Method, apparatus, and computer program product for radar detection of moving target Methods, apparatus, and computer program products are provided for tracking at least one moving target with a radar device without requiring the use of Doppler information. The invention comprises scanning an area with radar signals at a first time to receive a firs... | 07/04/2006 |
| 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 covering a broad angular search area is determined. Based on the determ... | 05/02/2006 |
| 7015855 | Creating and identifying synthetic aperture radar images having tilt angle diversity An apparatus for and method of employing synthetic aperture radar (SAR) images to automatically classify a target comprising emitting and collecting SAR signals at a plurality of squint angles, forming a plurality of SAR images of the target from the collected signa... | 03/21/2006 |
| 6940452 | Reducing co-channel interference in satellite communications systems by antenna re-pointing A system and method for increasing the performance of a satellite communication system by using a multivariate analysis approach to optimize the pointing of the boresight of a satellite-mounted antenna. Optimizing the pointing of the boresight of the antenna minimiz... | 09/06/2005 |
| 6940447 | Radar device and method for operating a radar device A radar device having means for generating a carrier-frequency signal, means for shaping pulses, means for generating modulated radar pulses from the carrier-frequency signal, means for emitting modulated signals as radar pulses, means for receiving radar pulses and... | 09/06/2005 |
| 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 comparing the measured power levels with the data to determine whethe... | 08/30/2005 |
| 6933883 | Method and device for aligning radar mount direction, and radar aligned by the method or device A radar mount direction alignment device to be used for aligning the transmit/receive direction of a radar device 2D mounted on a member on which a radar device is to be mounted, such as a vehicle 1. The radar mount direction alignment device has recei... | 08/23/2005 |
| 6925193 | Image processing system for dynamic suppression of airbags using multiple model likelihoods to infer three dimensional information The present invention relates in general to systems used to determine whether airbag deployment should be disabled or modified due to the proximity of the occupant to the airbag. In particular, the present invention is an image processing system that uses an image a... | 08/02/2005 |
| 6900761 | Automated portable remote robotic transceiver with directional antenna A portable, remote-controlled or automated robotic (capable of operating in an unmanned mode) transceiver using a directional antenna pointing system The system comprises a highly integrated, wireless, self-contained transceiver with robotic antenna pointing and an ... | 05/31/2005 |
| 6897821 | Spacecraft off-gimbal IRU precision payload pointing and disturbance rejection system An off-gimbal pointing system is improved using filtering of resolver and gyro responses respectively applied at the output of the resolvers and gyros for attenuating high frequencies resolver responses and gyro responses that effectively degrades the high frequency... | 05/24/2005 |
| 6856277 | Radar beam scanning method, on-vehicle radar apparatus and radar scanning computer program In the on-vehicle radar apparatus of the present invention, the vertical scanning width of the radar beam is narrowed, before the horizontal scanning, thereby avoiding unnecessary data processing and improving the data processing efficiently. Further, the S/N ratio ... | 02/15/2005 |
| 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, calibrated boresight (309). The monopulse antenna (602 | 02/08/2005 |
| 6842152 | Method for adjusting detection axis of object detection system A method for adjusting a detection axis of an object detection system, wherein a disk-shaped adjusting member is fixed to a reference plane on an outer face of a casing, wherein the rotational position of the adjusting member is adjusted. The adjusting member has fi... | 01/11/2005 |
