Title :
A technique to improve convergence speed of the LMS algorithm
Author :
Nishikawa, Kiyoshi ; Kiya, Hitoshi
Author_Institution :
Dept. of Electron. & Inf. Eng., Tokyo Metropolitan Univ., Japan
fDate :
30 May-2 Jun 1994
Abstract :
This paper describes a technique for improving the convergence speed of the LMS algorithm. The main idea of the technique is to increase the number of updatings of the filter weights per unit time so that the convergence speed is accelerated according to the number of updatings. The validity of the technique is shown by considering the deriving process of the LMS algorithm from the steepest descent algorithm. We present the two example structures for implementing the technique in actual applications. Finally we show the results of computer simulations
Keywords :
Acceleration; Adaptive filters; Adaptive systems; Application software; Computer simulation; Convergence; Digital filters; Least squares approximation; Least squares methods; Numerical stability;
Conference_Titel :
Circuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-1915-X
DOI :
10.1109/ISCAS.1994.408988