Method and apparatus for determining locations of a moving radar
First Claim
1. A method for determining locations of a moving radar, said method comprising:
- collecting a set of radar pulses over a collection baseline;
recording the time and location of a collection platform each time one of said radar pulses is collected;
generating a set of time-tagged pulse time-of-arrival (TOA) values by associating a recorded collection time value to each of said collected radar pulses;
generating a set of time-tagged and position-tagged pulse TOA values by associating a recorded collection location value to each of said time-tagged pulse TOA values; and
providing a set of estimate location values and velocity values of said moving radar based on said time-tagged and position-tagged pulse TOA values.
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Abstract
A method for determining locations of a moving emitter is disclosed. Initially, a set of emitter pulses is collected when a collector platform moves over a collection baseline. In addition, the time and location of the collection platform are recorded each time an emitter pulse is collected. A set of time-tagged pulse time-of-arrival (TOA) values is then generated by associating a recorded collection time value to each of the collected emitter pulses. Next, a set of time-tagged and position-tagged pulse TOA values is generated by associating a recorded collection location value to each of the time-tagged pulse TOA values. Finally, a set of location values and velocity values of a moving emitter is estimated based on the time-tagged and position-tagged pulse TOA values.
14 Citations
15 Claims
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1. A method for determining locations of a moving radar, said method comprising:
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collecting a set of radar pulses over a collection baseline; recording the time and location of a collection platform each time one of said radar pulses is collected; generating a set of time-tagged pulse time-of-arrival (TOA) values by associating a recorded collection time value to each of said collected radar pulses; generating a set of time-tagged and position-tagged pulse TOA values by associating a recorded collection location value to each of said time-tagged pulse TOA values; and providing a set of estimate location values and velocity values of said moving radar based on said time-tagged and position-tagged pulse TOA values. - View Dependent Claims (2, 3, 4, 5, 9)
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6. A computer recordable medium having a computer program product for determining locations of a moving radar, said computer recordable medium comprising:
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program code for collecting a set of radar pulses over a collection baseline; program code for recording the time and location of a collection platform each time one of said radar pulses is collected; program code for generating a set of time-tagged pulse time-of-arrival (TOA) values by associating a recorded collection time value to each of said collected radar pulses; program code for generating a set of time-tagged and position-tagged pulse TOA values by associating a recorded collection location value to each of said time-tagged pulse TOA values; and program code for providing a set of estimate location values and velocity values of said moving radar based on said time-tagged and position-tagged pulse TOA values. - View Dependent Claims (7, 8, 10)
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11. A geolocation system for determining locations of a moving radar, said geolocation system comprising:
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a radar receiver for collecting a set of radar pulses over a collection baseline; a clock for recording the time of a collection platform each time one of said radar pulses is collected; a navigation system for recording the location of said collection platform each time one of said radar pulses is collected; a first associator for generating a set of time-tagged pulse time-of-arrival (TOA) values by associating a recorded collection time value to each of said collected radar pulses; a second associator for generating a set of time-tagged and position-tagged pulse TOA values by associating a recorded collection location value to each of said time-tagged pulse TOA values; and a multi-parameter state estimator for providing a set of estimate location values and velocity values of said moving radar based on said time-tagged and position-tagged pulse TOA values. - View Dependent Claims (12, 13, 14, 15)
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Specification