On filter symmetry polarities and lengths of M-channel linear-phase PR filter banks
Anjin Peng, Shengxian Zhuang, Håkan Johansson, Lars Wanhammar · 2010 3rd International Congress on Image and Signal Processing · 2010
This paper derives the channel filters' symmetry polarities (symmetric or anti-symmetric impulse responses), length parities (even or odd), and permissible combinations and lengths of M-channel linear-phase perfect reconstruction (PR) maximally decimated filter banks. The results are general and can be used for any number of channels M.