Title :
Newton/LMS algorithm using modified DCT
Author :
Kim, Tae-Suk ; Kim, S.-D.
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
A Newton/LMS algorithm using a modified DCT is proposed which uses an efficient technique of inverting the input autocorrelation matrix when the periodic pseudorandom sequence is used as the reference signal. The number of operations is greatly reduced and the computational results show fast convergence rate and low misadjustment error. The application of the algorithm to the case of nonperiodic reference signal is also described.
Keywords :
convergence of numerical methods; discrete cosine transforms; filtering and prediction theory; least squares approximations; Newton/LMS algorithm; adaptive filtering; computational results; convergence rate; input autocorrelation matrix inversion; misadjustment error; modified DCT; nonperiodic reference signal; periodic pseudorandom sequence; reference signal;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931391
