Title :
A new LMS based Fourier analyzer for sinusoidal signals with time-varying amplitude
Author :
Kudoh, Norimasa ; Takeuchi, Yuichi ; Tadokoro, Yoshiaki
Author_Institution :
Hachinohe Nat. Coll. of Technol., Japan
Abstract :
A new LMS based Fourier analyzer for sinusoidal. signals with time-varying amplitude is proposed. The frequency response of the proposed algorithm in the steady state is derived in order to provide filtering insight of the proposed adaptive algorithm in the steady state. From numerical experiment, it is found that the proposed method can track each amplitude of cosine and sine signals much faster than the conventional LMS method.
Keywords :
filtering theory; frequency response; least mean squares methods; time-varying channels; LMS based Fourier analyzer; adaptive algorithm; cosine signals; frequency response; sine signals; sinusoidal signals; time-varying amplitude; Adaptive algorithm; Adaptive control; Adaptive filters; Digital-to-frequency converters; Discrete Fourier transforms; Filtering algorithms; Frequency estimation; Least squares approximation; Signal analysis; Steady-state;
Conference_Titel :
TENCON '02. Proceedings. 2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering
Print_ISBN :
0-7803-7490-8
DOI :
10.1109/TENCON.2002.1180269
