Tracking model of an adaptive lattice filter for a linear chirp signal in noise

Authors:
K. C. Chew;J. R. Zeidler;W. H. Ku
Affiliations:
Center for Ultra-High Speed Integrated Circuits & Syst., California Univ., San Diego, La Jolla, CA, USA;Center for Ultra-High Speed Integrated Circuits & Syst., California Univ., San Diego, La Jolla, CA, USA;Center for Ultra-High Speed Integrated Circuits & Syst., California Univ., San Diego, La Jolla, CA, USA
Venue:
ICASSP '91 Proceedings of the Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference
Year:
1991

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Time-varying behavior of the PARCOR coefficients of lattice filters with nonstationary AR inputs

ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: digital speech processing - Volume III

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Abstract

The authors study the behavior of the partial correlation (PARCOR) coefficients of the stochastic gradient adaptive lattice filter in response to a complex linear chirp FM signal in white Gaussian noise. A single-stage model for the behavior of the coefficients is developed, and the recovery error is derived. Also, an accurate model for a two-stage filter is derived.