A new adaptive time delay estimation algorithm with local variable gain for evoked potential latency change estimation

Author

Kong, Xuan ; Qiu, Tianshuang

Author_Institution

Dept. of Electr. Eng., Northern Illinois Univ., DeKalb, IL, USA

Volume

4

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

2050

Abstract

A new adaptive time delay estimation algorithm with variable adaptive gain is proposed to estimate the latency changes in evoked potentials. The variable adaptive gain is proportional to the local SNR of the input EP signal within each sweep and it is normalized by the average power of the EP signal. The results of computer simulation show that the adaptive algorithm with the variable adaptive gain is stable and has a better convergence and smaller latency change estimation errors

Keywords

adaptive estimation; adaptive filters; bioelectric potentials; delay estimation; iterative methods; least mean squares methods; medical signal processing; numerical stability; adaptive time delay estimation algorithm; computer simulation; convergence; direct LMS adaptive filter; evoked potential; latency change estimation; local SNR; local variable gain; signal model; smaller estimation errors; variable adaptive gain; Additive noise; Convergence; Delay effects; Delay estimation; Gain; Integrated circuit modeling; Integrated circuit noise; Least squares approximation; Signal processing; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.747009

Filename

747009