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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...
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7205927 |
Technique for low grazing angle 3D SAR target recognition
A radar on a moving platform for three dimensional target recognition of a target on a flat or sloping terrain is described. The target is illuminated from a plurality of locations to generate...
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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...
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7193555 |
System and method for detecting emitter signals in the presence of unwanted signals
A method for receiving at least one signal emitted by at least one emitter includes defining a first dwell associated with a first signal. The first dwell has a frequency range that overlaps at...
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7183964 |
Mine detection using radar vibrometer
A frequency-stepped radar may be used to detect buried landmines by sequentially inducing vibrations of different frequencies in the landmine. A sensor detects signals associated with the...
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7180442 |
Target indentification method using cepstral coefficients
A method of identifying an unknown target comprising creating a density function of cepstral coefficients for a known target; receiving a signal from the unknown target; transforming the signal...
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7176826 |
System and method for detection of emitter signals using multiple intercept rules
A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. A rule-based system is provided for...
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7167127 |
Process for tracking vehicles
The invention is process for tracking a moving targeted vehicle from a remote sensor platform comprising the steps of 1) tracking the targeted vehicle and periodically recording its radar signature...
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7142150 |
Method and system for detecting an object using a composite evidence grid
A method and system for detecting an object uses a composite evidence grid based on dual frequency sensing. A source transmits a laser transmission in a first zone. A detector receives a reflection...
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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...
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7132977 |
Target identification from a pool of targets using a new adaptive transmitter-receiver design
A design methodology for jointly optimizing the transmit waveform and receiver filter for multiple target identification is presented in presence of transmit signal dependent clutter like...
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7126876 |
Harmonic ambiguity resolver and inter array harmonic tracker
The present application discloses a method for resolving harmonic ambiguity and inter-array harmonic tracking. The method allows derivation of a complete set of possible harmonic families given the...
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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,...
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7119734 |
Target determination apparatus, target judgment apparatus, and determination aid apparatus
A target determination apparatus for determining type of a target, includes a transmission unit, a reception unit, and a determination unit. The transmission unit emits an electromagnetic wave. The...
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7116265 |
Recognition algorithm for the unknown target rejection based on shape statistics obtained from orthogonal distance function
A method for classification of a target object having a periphery comprises the steps of: selecting a plurality of random first chords D 1 across the periphery of the target object;
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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...
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7079072 |
Helicopter recognition radar processor
A radar processor is disclosed for processing the radar return samples from a Doppler radar receiver to discriminate helicopter targets from fixed-wing targets. The radar processor defines the...
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7075482 |
Direction finding method and system using transmission signature differentiation
A Direction Finding DF Method and System Using Transmission Signature Differentiation is disclosed. Also disclosed is system that is able identify which signal is coming from which transmiitter....
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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...
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7053817 |
Target determination apparatus
A target determination apparatus includes a reception unit, a judgment unit, and a determination unit. The reception unit receives a reflection wave from a target. The judgment unit judges as to...
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7046192 |
Radar process for classifying or identifying helicopters
A radar method of classifying generating or identifying helicopters, by generating a one-dimensional distance profile of the helicopter to be classified or to be identified by measuring the radar...
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7040570 |
Weather-agile reconfigurable automatic target recognition system
Applicants' ATR system is weather-agile because it is comprised of a primary target sensing means that is capable of surveilling the target scene in foul or fair weather, and a secondary target...
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7038616 |
Target identification from a pool of targets using a new adaptive transmitter-receiver design
A design methodology for jointly optimizing the transmit waveform and receiver filter for multiple target identification is presented in presence of transmit signal dependent clutter like...
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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...
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7034738 |
Method of radar pattern recognition by sorting signals into data clusters
A system and method for classifying radar emitters includes: (a) receiving a plurality of signals from the radar emitters; (b) generating data components for each signal received from the radar...
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7032858 |
Systems and methods for identifying targets among non-targets with a plurality of sensor vehicles
A plurality of sensor vehicles collect imaging data from an assigned location of a target region having targets and non-targets. The imaging data may be combined based on its location and the...
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7030808 |
Nonlinear target recognition
Nonlinear target detection for the detection of extremely weak signals when buried in very high levels of noise is performed with improvement of the quality of the signals received in the data by...
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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...
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7026979 |
Method and apparatus for joint kinematic and feature tracking using probabilistic argumentation
A method, apparatus, and computer program product for joint kinematic and feature tracking are presented. Kinematic measurements and feature/class measurements regarding an object are received from...
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7019684 |
Phase lock loop circuitry
An arrangement for reducing the effect of vibration-induced changes in phase of the first local oscillator in a tracking receiver wherein final detection is accomplished by a synchronous detector...
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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...
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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,...
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7009554 |
Reduced state estimation with multisensor fusion and out-of-sequence measurements
This invention relates to state estimation after processing measurements with time delays from multiple sensors of systems characterized by state variables and by multidimensional parameters, for...
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7002509 |
Method and system for emitter identification using transmission signatures
A Method and System for Emitter Identification Using Transmission Signatures is disclosed. Also disclosed is a system that is able to take in the undemodulated IF of the receiver and perform...
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6999024 |
Method and apparatus for discriminating a target objective, and related program
An average power value of a peak pair corresponding to a subjective target objective is converted into a radar cross section, to calculate a normalized average power value NP and a standard...
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6985102 |
Method and system for deinterleaving
A method of deinterleaving parameter descriptor word (PDW) data includes parallel scoring of pulses in an a posteriori search for associating of pulses based on proximity within a multi-parameter...
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6977610 |
Multiple radar combining for increased range, radar sensitivity and angle accuracy
A mechanism for combining signals of multiple radars to achieve increased range, radar sensitivity and angle accuracy is provided. A first signal beam is radiated from an antenna of a first radar...
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6970128 |
Motion compensated synthetic aperture imaging system and methods for imaging
A see-through-the-wall (STTW) imaging system uses a plurality of geographically separated positioning transmitters to transmit non-interfering positioning signals. An imaging unit generates a...
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6967612 |
System and method for standoff detection of human carried explosives
The system and method for standoff detection of human carried explosives (HCE) is a portable system that automatically detects HCE up to a range of 200 meters and within seconds alerts an operator...
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6950054 |
Handheld radar frequency scanner for concealed object detection
A handheld radar frequency scanner system for detecting objects concealed on a person, the system includes a radar transmitter coupled to a transmit antenna that is configured and positioned to...
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6943724 |
Identification and tracking of moving objects in detected synthetic aperture imagery
A method of tracking a moving object in an image created by use of a synthetic aperture includes identifying a plurality of receive phase centers for an image collector, obtaining a synthetic...
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6911933 |
Dynamic logic algorithm used for detecting slow-moving or concealed targets in synthetic aperture radar (SAR) images
The present invention includes an application of a dynamic logic algorithm to detect slow moving targets. Show moving targets are going to be moving in the range from 0-5 mph. This could encompass...
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6897802 |
Fusion of shape and multiscale features for unknown target rejection
A plurality of image chips ( 202 ) (over 100), each of the chips containing the same, known target of interest, such as, for example an M109 tank are presented to the system for training. Each...
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6894639 |
Generalized hebbian learning for principal component analysis and automatic target recognition, systems and method
This application discloses a method for distinguishing targets from clutter, comprising the steps inputting data, calculating data statistics from said data and using said data statistics to select...
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6894636 |
Imaging system and method
A system for imaging the contents of containers includes an imager arranged to receive millimetre wave radiation from a reception volume through a receive antenna wherein, in use, the container is...
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6894635 |
System and method for correction of discontinuities in an antenna model
A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. When revisit times are computed for each...
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6888492 |
Radar
A radar for a terminally-guided sub-munition is capable of differentiating between spatial depositions of target scatterers and clutter. The radar frequency f is swept, in stepwise manner, over a...
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6873284 |
System and method for non-maximum dwell duration selection for use in detecting emitter signals
A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. Typically, the minimum dwell duration of...
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6864831 |
Radar detection method and apparatus
A radar detection process includes computing a derivative of an FFT output signal to detect an object within a specified detection zone. In one embodiment, a zero crossing in the second derivative...
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6864826 |
RADAR APPARATUS FOR IMAGING AND/OR SPECTROMETRIC ANALYSIS AND METHODS OF PERFORMING IMAGING AND/OR SPECTROMETRIC ANALYSIS OF A SUBSTANCE FOR DIMENSIONAL MEASUREMENT, IDENTIFICATION AND PRECISION RADAR MAPPING
Radar apparatus and methods of use thereof for imaging and/or spectrometric analysis. The invention employs pulsed radar signals for magnifying, imaging, scale measuring, identifying and/or...
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