2-D weighted least-squares phase unwrapping
First Claim
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1. A system for phase unwrapping weighted values of interferometric signals comprising:
- means for determining the least squares solution of phase unwrapping for unweighted values of the interferometric signals; and
means for determining the least squares solution of phase unwrapping for weighted values of the interferometric phase signals by preconditioned conjugate gradient methods using the unweighted solutions as preconditioning values.
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Abstract
Weighted values of interferometric signals are unwrapped by determining the least squares solution of phase unwrapping for unweighted values of the interferometric signals; and then determining the least squares solution of phase unwrapping for weighted values of the interferometric signals by preconditioned conjugate gradient methods using the unweighted solutions as preconditioning values. An output is provided that is representative of the least squares solution of phase unwrapping for weighted values of the interferometric signals.
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8 Claims
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1. A system for phase unwrapping weighted values of interferometric signals comprising:
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means for determining the least squares solution of phase unwrapping for unweighted values of the interferometric signals; and means for determining the least squares solution of phase unwrapping for weighted values of the interferometric phase signals by preconditioned conjugate gradient methods using the unweighted solutions as preconditioning values. - View Dependent Claims (2)
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3. A method for phase unwrapping weighted values of interferometric signals comprising:
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generating interferometric signals; determining the least squares solution of phase unwrapping for unweighted values of the interferometric signals; determining the least squares solution of phase unwrapping for weighted values of the interferometric signals by preconditioned conjugate gradient methods using the unweighted solutions as preconditioning values; and generating an output representative of the least squares solution of phase unwrapping for weighted values of the interferometric signals. - View Dependent Claims (4, 5, 6, 7, 8)
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Specification