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| Number | Title | Issue Date |
| 7264198 | Time-to-go missile guidance method and system A method and apparatus for guiding a vehicle to intercept a target is described. The method iteratively estimates a time-to-go until target intercept and modifies an acceleration command based upon the revised time-to-go estimate. The time-to-go estimate depends upo... | 09/04/2007 |
| 7075438 | Tagging systems A method of verifying the position of a tagging device is described. The method comprises: storing response information in a quantum state of a quantum entity, the quantum entity comprising an entangled pair; separating the entangled pair into first and second entan... | 07/11/2006 |
| 7068742 | Method and apparatus for resolving multipath components for wireless location finding A method and apparatus that provides an accurate estimate of the time and amplitude of arrival of the first arriving overlapping multipath components (rays) in wireless locating finding systems. Overlapping fading multipath components for mobile-positioning are reso... | 06/27/2006 |
| 7006765 | Optical network monitor An optical network monitor and a method for monitoring the optical signals of an optical network including a spectrograph that includes a detector array, a processor and outputs. The network monitor receives an optical input signal which includes individual channels... | 02/28/2006 |
| 6927725 | System and method for radar detection and calibration A system and method for radar detection and calibration. By measuring the true range of a calibration target on entry to the radar's detection zone, the actual detection capability of the radar in current atmospheric conditions with the actual radar can be determine... | 08/09/2005 |
| 6593873 | Obstacle recognition system for automotive vehicle An obstacle recognition system for automotive vehicles is provided which is designed to recognize targets such as preceding vehicles to be tracked by a radar by grouping data elements derived through a scan of a frontal detection range using laser pulses.... | 07/15/2003 |
| 6564146 | Tracking system for providing position information Processing GPS signals received at moving targets and at a fixed location near instrumentation associated with timing and recording an event allows the determination of instantaneous target position to be made without a requirement for additional active t... | 05/13/2003 |
| 6204801 | System and method for obtaining precise missile range information for semiactive missile systems A system (10) for determining the range between a missile (14) and a target (18) adapted for use with a semi-active missile system. The system (10) includes a first circuit (12) for generating a periodic signal (24) that is periodically frequency modulate... | 03/20/2001 |
| 6037896 | Method for determining an impact point of a fired projectile relative to the target The method of determining an impact point of a fired projectile relative to a target. The target is first tracked with the first beam. In the meantime, a second beam is directed above the target and waits for the projectile to be situated within the beam.... | 03/14/2000 |
| 5760743 | Miss distance indicator data processing and recording apparatus A miss distance indicator data processing and recording apparatus compris an antenna which receives an RF missile telemetry signal from a missile attempting to intercept a target and a translated RF missile telemetry signal from an AN/DRQ-4 miss distance... | 06/02/1998 |
| 5614910 | Miss distance vector scoring system A miss distance scoring system comprising four antennas which are configu to provide for an optimal radiation pattern of pulsed radio frequency energy to determine a missile's miss distance and miss direction from a target. Reflected pulses from a missil... | 03/25/1997 |
| 5467682 | Action calibration for firing upon a fast target A method for firing a computerized radar weapon system upon a fast target to reduce errors in aim caused by aim-biasing factors that vary in time and space includes computing a point along an extrapolated target track ahead of the target at which to stage... | 11/21/1995 |
| 5406290 | Hit verification technique An interceptor's point of impact on a targeted missile is quickly revealed in the milliseconds preceeding and following the impact by illuminating the target with radar signals at a high pulse repetition rate and observing the reflected radar echoes on an... | 04/11/1995 |
| 5317320 | Multiple radar interference suppressor A multiple radar interference suppressor for use in a missile scoring system. The multiple radar interference suppressor phase locks the pulse repetition frequency of each drone (unmanned) aircraft to one other drone of the plurality of aircrafts. The pha... | 05/31/1994 |
| 5181039 | System for sensing the approach of a moving missile to a target A system for determining the trajectory of a missile and the minimum miss distance with respect to a target aircraft, comprises two transmitters on the aircraft each cooperating with four receivers on the aircraft. Each transmitter radiates a succession o... | 01/19/1993 |
| 5113191 | Radar signal progessing A sensing circuit is assumed to produce in phase and quadrature Doppler signals. The relative phase of these signals is used to determine the passage of object such that correctly related zero passages in the two signals are counted, and the count state w... | 05/12/1992 |
| 4803631 | Doppler-adaptive filter for non-zero mean dropout noise An iterative process for computing the trajectory of one object containing a transmitter relative to another object containing a plurality of receivers is disclosed. The process contains a subprocess which estimates the trajectory band from the Doppler sh... | 02/07/1989 |
| 4739329 | Scaler scoring system A radar transceiver and communications transmitter mounted on a target for communicating video signals from the radar to a remote receiver which has associated therewith an FFT detector for detecting scoring encounters, and a computer or microprocessor wh... | 04/19/1988 |
| 4238785 | Zero-doppler shift positioning technique A system for locating forward observation posts with respect to a base ston. A continuous electromagnetic wave with frequency fo is transmitted from an artillery projectile or missile in flight. In addition, a relative time code is transmitted... | 12/09/1980 |
| 4219815 | Bullet hit indicator scoring system In a target to be towed by a vehicle, such as an airplane or the like, a radar transmitter and receiver each having separate antennas mounted in spaced apart relation at the front and back of the target, said transmitter being periodically pulsed and said... | 08/26/1980 |
| 4124849 | Positioning system A positioning system is provided in which a three channel monopulse radar measures the velocity, azimuth and elevation of a target around which a first range gate is placed. In addition, a second range gate is placed near the target to receive energy from... | 11/07/1978 |
| 4069482 | Target range sensor The specification discloses a radar sensor for detecting short-range, slowly moving objects and using the range versus time data to develop a prediction of the time at which the range of the object will be at a minimum to the sensor. The sensor uses a pul... | 01/17/1978 |
| 4057708 | Minimum miss distance vector measuring system A system for measuring the minimum miss distance and direction in three planes of a missile trajectory with respect to a target. Space diverse sequential range measurements are made from a plurality of pulse radar sensors mounted on the target. The range ... | 11/08/1977 |
| 4031534 | Noise resistant zone penetration detection system A system for detecting the existence of a projectile within a penetration ne of a target and providing a score indication for each projectile penetrating that zone. The system utilizes a doppler signal generator, a doppler cycle detector and an intercept ... | 06/21/1977 |
| 4015258 | Weapon aiming system A gun aiming system having target ranging means, wherein the operator observes the position of backscattered radiation from a bullet or bullets at the target range relative to a simultaneous visually observed target position. A diverged laser beam is refl... | 03/29/1977 |
| 4005420 | CW radar system A self telemetering miss-distance radar method and system of high sensitivity and free of second-time-around echoes is provided by phase modulating a continuous wave signal with the output of a repetitive code source such as a pseudo-random noise generato... | 01/25/1977 |
