Title :
Adaptive comb filtering for harmonic signal enhancement
Author :
Nehorai, Arye ; Porat, Boaz
Author_Institution :
System Control Technology, Inc., Palo Alto, California
Abstract :
A new algorithm is presented for adaptive comb filtering and parametric spectral estimation of harmonic signals with additive white noise. The algorithm is composed of two cascaded parts. The first estimates the fundamental frequency and enhances the harmonic component in the input. The second estimates the harmonic amplitudes and phases. Performance analysis provides new results for the asymptotic Cramer-Rao bound (CRB) on the parameters of harmonic signals with additive white noise.
Keywords :
Adaptive filters; Additive white noise; Amplitude estimation; Band pass filters; Filtering; Finite impulse response filter; Frequency estimation; Phase estimation; Power harmonic filters; White noise;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '85.
DOI :
10.1109/ICASSP.1985.1168408
