2 ALGORITHMS FOR ADAPTIVE RETRIEVAL OF SLOWLY TIME-VARYING MULTIPLE CISOIDS IN NOISE

Citation
P. Tichavsky et P. Handel, 2 ALGORITHMS FOR ADAPTIVE RETRIEVAL OF SLOWLY TIME-VARYING MULTIPLE CISOIDS IN NOISE, IEEE transactions on signal processing, 43(5), 1995, pp. 1116-1127
Citations number
15
Categorie Soggetti
Engineering, Eletrical & Electronic
ISSN journal
1053587X
Volume
43
Issue
5
Year of publication
1995
Pages
1116 - 1127
Database
ISI
SICI code
1053-587X(1995)43:5<1116:2AFARO>2.0.ZU;2-G
Abstract
Two algorithms for tracking parameters of slowly varying multiple comp lex sine waves (cisoids) in noise (the multiple frequency tracker and the adaptive notch filter) are described, For high signal-to-noise rat io (SNR), the properties of the algorithms (i.e., stability, noise rej ection, and tracking speed) are studied analytically using a linear fi lter approximation technique, The tradeoff between noise rejection and tracking error for both algorithms is shown to be similar, Different choices of the design variables are discussed, namely i) minimal mean- square estimation error for random walk modeled frequency variations a nd ii) minimal stationary estimation variance subject to a given track ing delay.