Title :
A simple design method for near-perfect-reconstruction nonuniform filter banks
Author :
Li, Jianlin ; Nguyen, Truong Q. ; Tantaratana, Sawasd
Author_Institution :
PictureTel Corp., Reading, MA, USA
fDate :
8/1/1997 12:00:00 AM
Abstract :
In this correspondence, we propose a simple design method for nonuniform integer-decimated filter banks based on a uniform cosine-modulated filter bank. The resulting distortion and aliasing are comparable to the stopband attenuation of the prototype filter. Examples are given to demonstrate the proposed method
Keywords :
band-pass filters; digital filters; signal sampling; aliasing; design method; distortion; integer sampling factors; near-perfect-reconstruction nonuniform filter banks; nonuniform integer-decimated filter banks; stopband attenuation; uniform cosine-modulated filter bank; Attenuation; Bandwidth; Channel bank filters; Design methodology; Discrete cosine transforms; Filter bank; Phase distortion; Prototypes; Sampling methods; Signal synthesis;
Journal_Title :
Signal Processing, IEEE Transactions on
