Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7626536 | Non-scanning radar for detecting and tracking targets Radar for detecting and tracking short range airborne targets using a non-scanning beam to illuminate the entire search space, and processing the return signals from a plurality of spaced apart receive antennas. Target angle in one plane may be determined by coheren... | 12/01/2009 |
| 7411543 | Maximum-likelihood rocket identifier A sensor suite determines location and velocity information relating to a missile threat, which is converted to missile or rocket state estimates. The state estimates are transformed into time-invariant dynamic parameters, unique for each missile type. Estimated roc... | 08/12/2008 |
| 7375675 | Method and system for multiple target class data recording, processing and display for over-the-horizon radar A method and apparatus are disclosed that enable an over-the-horizon-radar (OTHR) system to detect and track multiple target classes simultaneously, where target classes are defined by the speed and acceleration of the tracked objects. The OTHR is tasked in a starin... | 05/20/2008 |
| 7352280 | System and method for intruder tracking using advanced correlation in a network security system A method for correlating event information comprises receiving event information for a plurality of detected events wherein the event information for a particular detected event comprises a plurality of attributes associated with that detected event. The method cont... | 04/01/2008 |
| 7345621 | Real-time multistatic radar signal processing system and method A real-time signal processing engine robustly detects, localizes, tracks and classifies ground targets based on radar signals from a multistatic radar system. The system differentiates between different targets based on an optimized cost function, which can include ... | 03/18/2008 |
| 7333052 | Signal processing with reduced combinational complexity Signal processing with reduced combinatorial complexity for tracking evolving phenomena such as radar tracks associated with weighted measurement parameters includes selecting a current phenomenon and obtaining a set of measurement parameters associated with it. Beg... | 02/19/2008 |
| 7301497 | Stereo display for position sensing systems A method for display of radar data includes performing a first radar scan to obtain, for at least one object (24), a first range reading, a first azimuth reading, and a first altitude reading. A second radar scan is then performed to obtain, for the at least ... | 11/27/2007 |
| 7256729 | Method for the observation of a number of objects The invention relates to a method for the observation of a number of objects, which move in a space monitored by a number of sensors, are recorded by the sensors and followed with continuous updating of at least the sensor track defining the kinematics of the object... | 08/14/2007 |
| 7248952 | Mixed integer linear programming trajectory generation for autonomous nap-of-the-earth flight in a threat environment A method of planning a path of a vehicle by defining a first plurality of constraints representing dynamics of the vehicle; defining a second plurality of constraints representing collisions with obstacles; defining a third plurality of constraints representing visi... | 07/24/2007 |
| 7248206 | Instantaneous multisensor angular bias autoregistration Unknown alignment biases of sensors of a tracking system are estimated by an iterative Kalman filter method. Current measurements are corrected for known alignment errors and previously estimated alignment biases. The filter time reference is updated to produce esti... | 07/24/2007 |
| 7236121 | Pattern classifier and method for associating tracks from different sensors An interceptor-based sensor clusters tracks of objects to generate track clusters based on an uncertainty associated with each track, and generates feature vectors for a cluster under test using the relative placement and the population of other track clusters. The ... | 06/26/2007 |
| 7218270 | ATR trajectory tracking system (A-Track) A-Track is a tracking process that is driven by automatic target recognition techniques (ATR), mobility analysis using digital maps and exploitation of other constraining information. It is structured as an optimization problem amenable to the formalism from classic... | 05/15/2007 |
| 7199750 | Real-time multistatic radar signal processing system and method A real-time signal processing engine robustly detects, localizes, tracks and classifies ground targets based on radar signals from a multistatic radar system. The system differentiates between different targets based on an optimized cost function, which can include ... | 04/03/2007 |
| 7193557 | Random set-based cluster tracking Tracking objects by receiving a dataframe from a detection sensor device, the dataframe containing a timestamp and data corresponding to each detected object, generating new observation nodes for each detected object, propagating group track state parameters to obta... | 03/20/2007 |
| 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 |
| 7132975 | Apparatus and method for detecting moving objects An ultra wideband radar system for detecting moving objects comprising an antenna, which may be scanned in at least one dimension, and a signal processor wherein the signal processor includes a scan combiner that combines scan information in accordance with a candid... | 11/07/2006 |
| 7081849 | Process for sensor resources management The subject process accepts the data from a kinematic tracker and maps them to fuzzy set conditions. Then using a multitude of defined membership functions and fuzzy logic gates, generates sensor mode control rules. It does this for every track and each sensor. The ... | 07/25/2006 |
| 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 |
| 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 |
| 7030809 | Multiple model radar tracking filter and systems and methods employing same A multiple model (MM) radar tracking filter which controls the weighting applied to outputs of first and second model functions responsive to non-Markovian switching logic, includes the first and second model functions, switching logic receiving unweighted outputs f... | 04/18/2006 |
| 7026980 | Missile identification and tracking system and method Sensors determine the kinematic measurements of a boosting missile, and the information is applied to a plurality of pairs or sets of filters, one of which is matched to the characteristics of a particular target type, and the other of which is general, and not matc... | 04/11/2006 |
| 6982667 | Method for target-tracking of objects A geographical region having an object to be tracked is divided into subregions, where adjacent disposed subregions partial overlap one another and the overlapping portions of adjacently disposed subregions share common states. A transition matrix is used to represe... | 01/03/2006 |
| 6977598 | Aircraft protection system and method According to one embodiment of the invention, a system for protecting aircraft includes a plurality of missile warning sensors and a turret mounted near the top of at least one support structure. Each missile warning sensor is operable to detect a missile and the tu... | 12/20/2005 |
| 6954931 | Resource allocation Computer-implemented methods for allocating resources to items are provided. One or more assignment scores for each item/resource pair are determined by applying one or more application-specific strategies to each item/resource pair using game theory. A cost matrix ... | 10/11/2005 |
| 6952178 | Method of detecting moving objects and estimating their velocity and position in SAR images A method of detecting moving objects and of estimating their velocity and position in SAR images includes the steps of generating a sequence of single-look SAR images which have the same polarization, are successive in time, and have a look center frequency which va... | 10/04/2005 |
| 6944566 | Method and system for multi-sensor data fusion using a modified dempster-shafer theory A multi-sensor data fusion system and method provide an additive fusion technique including a modified belief function (algorithm) to adaptively weight the contributions from a plurality of sensors in the system and to produce multiple reliability terms including re... | 09/13/2005 |
| 6937746 | System and method for automatic recognition of formations in moving target indication data A system and method for determining a threat level associated with a collection of detected objects within a geographical area of interest are disclosed. A set of formation templates representative of organizational patterns are defined. Configurations for the templ... | 08/30/2005 |
| 6922493 | Methods and arrangements to enhance gridlocking The present invention is in the area of gridlocking or sensor registration. Embodiments encompass systems of process and/or equipment to format tracks from more than one sensor to be compared or correlated by statistical and/or optical correlation techniques to prov... | 07/26/2005 |
| 6888493 | Multi-targets detection method applied in particular to surveillance radars with multi-beamforming in elevation A radar comprising transmitter means for generating bursts of radar pulses, each scan of a radar consisting of a number (Nb) of bursts, the method comprises, for each scan k: a first step, in which a radar cell is pre-se... | 05/03/2005 |
| 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 transmitting radar signals in the direction of a potential threat, measuring t... | 02/15/2005 |
| 6801152 | Method for determining the optimum observer heading change in bearings-only passive emitter tracking Emitter target range and heading are estimated from bearing measurements enhancing bearings-only estimator convergence to a target track, and permitting optimization of an observer position relative to the target at the end of the total bearing measurement period. O... | 10/05/2004 |
| 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 information or tracking information on selected targets. Additionally, the disc... | 08/03/2004 |
| 6750806 | Method of tracking a target and target tracking system A method of tracking a target (2) moving in an airspace and a target tracking system (10) for performing the method are described. A search sensor (12) searches a search space at a first clock rate (2π/ΔT1) and establishes target inform... | 06/15/2004 |
| 6704692 | Method and system for tracking multiple objects An improved method and system for solving a combinatorial optimization problem, such as a tracking problem, to define a plurality of associations of measurements taken of a plurality of objects is provided. In one aspect, a method, a system and a computer... | 03/09/2004 |
| 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 information or tracking information on selected targets. Additionall... | 08/05/2003 |
| 6591146 | Method for learning switching linear dynamic system models from data From a set of possible switching states and responsive to a sequence of measurements, a corresponding sequence of switching states is determined for a system having a plurality of dynamic models, associates each model with a switching state such that a mo... | 07/08/2003 |
| 6552679 | Track grouper There is provided a method for tracking a group having at least two targets. The method may comprise selecting the at least two targets from a plurality of targets. The at least two targets may be selectable based upon their respective target datum thereo... | 04/22/2003 |
| 6512476 | Adaptive radar scanning system An adaptive radar scanning system for an aircraft includes a radar antenna that is angularly movable to scan across a full scan range. A control system operates the radar antenna to scan in an adjusted scan range based on information related to a heading ... | 01/28/2003 |
| 6498580 | Missile launch point estimation system In a system for estimating the launch point of a missile, Doppler shifted signals reflected from the missile as it travels from its launch point are used in a Kalman filter to estimate the missile position, velocity and acceleration, in earth centered fix... | 12/24/2002 |
