Title :
The use of transform domain LMS algorithm to adaptive equalization
Author :
Sang, En-fang ; Yeh, Hen-geul
Author_Institution :
Dept. of Electr. Eng., California State Univ., Long Beach, CA, USA
Abstract :
In this paper, a preselected discrete cosine transform-least mean squares (PDCT-LMS) algorithm is proposed. In this method, after a DCT operation, a tapped-delay-line (TDL) form and LMS algorithm are implemented for some preselected DCT bins. Each bin corresponds to an assigned carrier frequency of the signal. Several DCT-LMS algorithms are parallelly implemented, so that fast convergence rate and frequency encoded signals is easily obtained
Keywords :
adaptive filters; discrete cosine transforms; equalisers; least squares approximations; parallel algorithms; signal processing; DCT bins; PDCT-LMS algorithm; adaptive equalization; carrier frequency; fast convergence rate; frequency encoded signals; preselected discrete cosine transform-least mean squares algorithm; tapped-delay-line form; transform domain LMS algorithm; Adaptive equalizers; Adaptive filters; Autocorrelation; Convergence; Discrete cosine transforms; Eigenvalues and eigenfunctions; Equations; Frequency; Intersymbol interference; Least squares approximation;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-0891-3
DOI :
10.1109/IECON.1993.339393
