Title :
Block Adaptive Filter With Time-Domain Update Using Three Transforms
Author :
Narasimha, Madihally J.
Author_Institution :
Stanford Univ., CA
Abstract :
Implementation of real signal block adaptive filters with time-domain update using three fast Fourier transforms (FFTs) is delineated. The reduction from five to three FFTs is achieved by combining the required convolution and correlation operations into a single complex filtering process. The proposed method requires fewer additions than the conventional five FFT solution. It also has a more elegant architecture that is simpler to implement in hardware or software
Keywords :
adaptive filters; convolution; correlation methods; fast Fourier transforms; filtering theory; time-domain analysis; FFT; block adaptive filter; convolution operation; correlation operation; fast Fourier transform; filtering process; hardware implementation; software implementation; time-domain update; Adaptive filters; Convolution; Discrete Fourier transforms; Fast Fourier transforms; Filtering; Finite impulse response filter; Flexible printed circuits; Least squares approximation; Signal processing algorithms; Time domain analysis; Block adaptive filters; overlap-save algorithm; time-domain update;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2006.881521
