Title :
A transform domain LMS algorithm with an adaptive step size equation
Author_Institution :
Dept. of Electr. Eng., Jordan Univ. of Sci. & Technol., Irbid, Jordan
Abstract :
A transform domain least mean-square (TDLMS) adaptive algorithm employing a new adaptive step size control technique is proposed. The variable step size approximates a theoretical optimal one based on a proposed cost function. As a result, considerable improvement in convergence speed is attained in early stages of convergence with small misadjustment near the optimum. Simulation experiments clearly demonstrate the enhanced convergence characteristics of the proposed algorithm.
Keywords :
adaptive control; convergence of numerical methods; least mean squares methods; signal processing; TDLMS; adaptive algorithm; adaptive step size control technique; cost function; signal processing; transform domain least mean-square; Adaptive algorithm; Adaptive filters; Approximation algorithms; Convergence; Cost function; Equations; Least squares approximation; Size control; Steady-state; Transforms;
Conference_Titel :
Signal Processing and Information Technology, 2004. Proceedings of the Fourth IEEE International Symposium on
Print_ISBN :
0-7803-8689-2
DOI :
10.1109/ISSPIT.2004.1433728
