Methods and apparatus for adaptive motion compensation to remove translational movement between a sensor and a target
First Claim
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1. A method, comprising:
- performing adaptive motion compensation to remove translational movement between a sensor and a target using data from the sensor by;
performing, using a computer processor, clutter removal from the data using a whitener;
using the whitened data to select a target for which adaptive motion compensation should be performed;
using weighting in the Doppler domain to reduce frequency components for data for the selected target;
transforming the weighted Doppler domain data to time domain data; and
performing dynamic sliding window processing on the time domain data to estimate an instantaneous range rate for the target.
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Abstract
Methods and apparatus for performing adaptive motion compensation to remove translational movement between a sensor and a target using data from the sensor. After whitening, data can be processed to select a target and focus frequency components. Dynamic sliding window processing can be performed on processed time domain data to estimate an instantaneous range rate for the target.
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Citations
20 Claims
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1. A method, comprising:
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performing adaptive motion compensation to remove translational movement between a sensor and a target using data from the sensor by; performing, using a computer processor, clutter removal from the data using a whitener; using the whitened data to select a target for which adaptive motion compensation should be performed; using weighting in the Doppler domain to reduce frequency components for data for the selected target; transforming the weighted Doppler domain data to time domain data; and performing dynamic sliding window processing on the time domain data to estimate an instantaneous range rate for the target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19, 20)
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12. An article, comprising:
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a computer readable medium containing stored, non-transitory instructions that enable a machine to perform; performing adaptive motion compensation to remove translational movement between a sensor and a target using data from the sensor by; performing, using a computer processor, clutter removal from the data using a whitener; using the whitened data to select a target for which adaptive motion compensation should be performed; using weighting in the Doppler domain to reduce frequency components for data for the selected target; transforming the weighted Doppler domain data to time domain data; and performing dynamic sliding window processing on the time domain data to estimate an instantaneous range rate for the target. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A system, comprising:
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a sensor to illuminate an area; an antenna to receive signal return from the area; a clutter removal module to remove clutter from the signal return using a whitener; a target selection module to receive the clutter-removed data and to select a target for which adaptive motion compensation should be performed; a weighting module to use weighting in the Doppler domain to reduce frequency components for data for the selected target; a Doppler frequency module to perform Doppler frequency domain processing on the weighted target data; and a sliding window module to process the Doppler frequency domain data transformed to time domain data to estimate an instantaneous range rate for the target for removing translation movement between the sensor and the target.
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Specification