A Method to Depress Aliasing for Multirate Filter Banks
Xue Li · Beijing Youdian Xueyuan xuebao · 2002
An aliasing component counteracting scheme for uniform maximally decimated filter banks by setting proper relations between analysis filters and synthesis filtes is proposed. Theoretical analysis shows that the aliasing at interface frequencies can be canceled completely. If the frequency characters of adjacent filters is symmetrical nearly, the total aliasing may be small. Experimental results show the effectivity.