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| Number | Title | Issue Date |
| 7965225 | Radar antenna stabilization enhancement using vertical beam switching A method of adjusting a position of an antenna to reduce a position error comprises receiving first data associated with first returns associated with a first portion of an antenna. The method further comprises receiving second data associated with second returns as... | 06/21/2011 |
| 7432847 | Ultra-wideband transceiver An ultra-wideband transceiver that includes a selection mechanism for selecting an internal or an external pulse repetition frequency generator, the output of which is used in the generation of very short duration UWB RF pulses. A detection mechanism is electrically... | 10/07/2008 |
| 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 |
| 7348918 | Mobile ballistic missile detection and defense system The present invention is directed towards a ballistic missile detection and defense system. The system of the present invention comprises a ship based interceptor or antiballistic missile, a missile launch detection and tracking system, and a signal processing syste... | 03/25/2008 |
| 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 to capture the object within the transmitted radar signal. The transmi... | 09/25/2007 |
| 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 |
| 7212652 | Method for tracking targets with hyper-spectral data In the present invention, the histogram model used in H-PMHT is extended to treat the problem of tracking using hyper-spectral data. Completely general spectral density functions are handled via the use of non-parametric methods. The present invention is not restric... | 05/01/2007 |
| 7205929 | Radar system and vehicle controller incorporating radar system An electromagnetic wave is transmitted from a signal transmission antenna using a signal transmission IC; this electromagnetic wave is received, after having been reflected by a target object, by signal receiving antennas and signal receiving ICs; and the distance t... | 04/17/2007 |
| 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 |
| 7202807 | Dynamic antenna A method and an antenna arrangement are disclosed for reducing the antenna radar cross section for an externally illuminating radar source. A radar pulse is transmitted with the antenna arrangement fully matched to achieve a lowest possible power loss of the pulse. ... | 04/10/2007 |
| 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 |
| 7183963 | System and method for inspecting transportable items using microwave imaging An inspection system uses microwave radiation to capture a microwave image of a transportable item. The system includes a transmit scanning panel including a transmit array of transmit antenna elements, each being programmable with a respective phase delay to direct... | 02/27/2007 |
| 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 |
| 7076342 | Attitude sensing apparatus for determining the attitude of a mobile unit An attitude sensing apparatus for determining the attitude of a mobile unit is provided that can reliably estimate an alignment angle between a GPS antenna coordinate system and an IMU coordinate system with good accuracy regardless of the magnitude of the alignment... | 07/11/2006 |
| 7065432 | Device for improving the visibility conditions in a motor vehicle The invention relates to a device for improving the visibility conditions in a motor vehicle, having a radiation source for infrared radiation for irradiating the surroundings of the vehicle, having an infrared-sensitive camera for taking images of at least part of ... | 06/20/2006 |
| 7046187 | System and method for active protection of a resource An active protection system comprising an ultrawideband radar for threat detection, an optical tracker for precision threat position measurement, and a high powered laser for threat kill or mitigation. The uwb radar may use a sparse array antenna and may also utiliz... | 05/16/2006 |
| 7034742 | Road curvature estimation and automotive target state estimation system A first Kalman filter estimates true measures of yaw rate and vehicle speed from associated noisy measures thereof generated by respective sensors in a host vehicle, and a second Kalman filter estimates therefrom parameters of a clothoid model of road curvature. Mea... | 04/25/2006 |
| 7019681 | System and method for verifying the radar signature of an aircraft The invention is a system and method for verifying the radar signature of a pair of aircraft. The system includes a radar transmitter and receivers located in the leading and trailing edge of the wing at the wing tip of the aircraft such that when flying the aircraf... | 03/28/2006 |
| 7015857 | Calibrating an antenna by determining polarization Calibrating an antenna includes receiving a signal sent from a reference located within a region. The signal has a polarization within an expected polarization range. Polarization value sets are established in accordance with the expected polarization range. Polariz... | 03/21/2006 |
| 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 |
| 6961016 | Estimating an antenna pointing error by determining polarization Estimating an antenna pointing error includes receiving a signal sent from a reference located within a region. A polarization ratio is evaluated over the region. A minimum polarization ratio variance for the polarization ratio is established. A location correspondi... | 11/01/2005 |
| 6937879 | Adaptive cancellation of fixed interferers An improved base station which cancels the effects of known fixed interference sources produces a signal substantially free from the interference sources thereby increasing total channel capacity. The adaptive interference canceler system includes a main antenna for... | 08/30/2005 |
| 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 |
| 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 |
| 6812883 | In-vehicle radar system A radar system mounted in a reference vehicle can detect a distance and orientation of a preceding vehicle to thereby compute a relative position of a width center of the preceding vehicle. A curving radius of the reference vehicle is then detected for computing a r... | 11/02/2004 |
| 6718261 | Architecture for real-time maintenance of distributed mission plans A method routes a plurality of entities (200) through a predetermined area. The method includes the steps of: providing a plan; providing a deterministic method for computing the plan for the plurality of entities (200), the plan including a plurality ... | 04/06/2004 |
| 6714157 | Multiple time-interleaved radar operation using a single radar at different angles A pulse radar system capable of mapping multiple targets essentially simultaneously using a single radar antenna. By alternately transmitting radar pulses toward multiple targets positioned at different angles relative to the antenna and alternately receiving return... | 03/30/2004 |
| 6677890 | Distributed elevated radar antenna system An airborne radar antenna system for detecting a target in a volume includes a tethered aerostat and an antenna that is supported above ground by the aerostat. The aerostat-based antenna is used for transmitting and receiving a radar beam into the volume ... | 01/13/2004 |
| 6643588 | Geometric based path prediction method using moving and stop objects A method for estimating the curvature in a road is disclosed. The method measures an azimuth angle range and relative velocity between a host and a target vehicle, which determines whether a host vehicle is changing lanes or whether a target vehicle is ch... | 11/04/2003 |
| 6596976 | Method and system for pointing and stabilizing a device A method and system for pointing and stabilizing a device that needs to be pointed and stabilized with a desired direction, are disclosed, wherein current attitude measurement and attitude rate measurement of the device measured by an attitude producer, w... | 07/22/2003 |
| 6542110 | Device and method for increasing the angular resolution of an antenna arrangement The invention describes a device and a method for increasing the angular resolution in a radar system looking in the direction of motion and laterally thereto, wherein the doppler frequency shift of the transmitted signal is evaluated in order to increase... | 04/01/2003 |
| 6535158 | Kinematic analysis of conically scanned environmental properties A method for determining the velocity of features such as wind. The method preferably includes producing sensor signals and projecting the sensor signals sequentially along lines lying on the surface of a cone. The sensor signals may be in the form of lid... | 03/18/2003 |
| 6496770 | Method and apparatus for controlling the travel speed of a vehicle The method of controlling travel speed of a vehicle includes controlling vehicle travel speed according to a set vehicle speed given by a driver of the controlled vehicle in a speed control mode; detecting at least one object present in front of the contr... | 12/17/2002 |
| 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 a predefined target, a plurality of laterally arranged cutt... | 11/05/2002 |
| 6445339 | FM-CW radar apparatus This FM-CW radar apparatus comprises a transmitter section, a receiver section, and a signal processing section. The transmitter section transmits a frequency-modulated continuous wave as a transmitted wave. The receiver section receives a radio wave resu... | 09/03/2002 |
| 6429803 | Magnetic beam deflection devices A device for changing the divergence of a beam of microwave radiation comprises a ferrite body having an aperture through which the beam passes. Magnetic wires pass both through the body and across the aperture, or a magnetic coil on either side of the ap... | 08/06/2002 |
