Title :
Turning overlap-save into a multiband mixing, downsampling filter bank
Author :
Borgerding, Mark
fDate :
3/1/2006 12:00:00 AM
Abstract :
This paper demonstrates how the popular overlap-save (OS) fast convolution filtering technique can be extended to create a flexible and computationally efficient bank of filters, with frequency translation and decimation implemented in the frequency domain. The paper also provides some tips for choosing appropriate fast Fourier transform (FFT) size. It also presents implementation guidance to streamline this powerful, multichannel filtering, down-conversion and decimation process
Keywords :
channel bank filters; convolution; fast Fourier transforms; filtering theory; frequency-domain analysis; signal sampling; FFT; decimation process; down-conversion process; downsampling filter bank; fast Fourier transform; fast convolution filtering technique; frequency domain; multiband mixing; multichannel filtering; turning overlap-save filtering technique; Channel bank filters; Convolution; Digital signal processing; Discrete Fourier transforms; Filter bank; Filtering; Finite impulse response filter; Frequency domain analysis; Nonlinear filters; Turning;
Journal_Title :
Signal Processing Magazine, IEEE
DOI :
10.1109/MSP.2006.1598092
