Real-time superresolution signal processing

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364574, 3642214, 360 39, 369 32, 341131, H03M 106

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active

057485070

ABSTRACT:
A signal processing system and method capable of real-time implementation for extracting signal parameter information with high accuracy and resolution. Signals (101) are passed through a filter bank (102), downconverted and decimated. The superresolution technique of constrained total least squares (CTLS) is used to process the resulting samples to obtain frequency components and their amplitudes (106). CTLS may also be used to obtain decaying coefficients associated with each frequency components. If desired, the results of CTLS may be used to extend original data for higher resolution spectral analysis and output (109).

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Abatzoglou, Theagenis J., et al., "The Constrianed Total Least Sqaures Tecnique and its Application to Harmonic Superresolution", IEEE Transactions on Signal Processing, May 1991, vol. 39, No. 5, pp. 1070-1087, U.S.A.
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Steedly, William M., et al, "A Modified TLS-Prony Method Using Data Decimation" IEEE Transactions on Signal Processing, Sep. 1994, vol. 42, No. 9, pp. 2292-2303, U.S.A.

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