Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2002, Vol. 25 ›› Issue (3): 22-26.

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A Method to Depress Aliasing for Multirate Filter Banks

LI Xue-bin, LIU Ze-min   

  1. Telecommunication Engineering School, Beijing University of Posts andTelecommunications, Beijing 100876, China
  • Received:2001-09-27 Online:2002-09-10
  • Supported by:
     

Abstract: An aliasing component counteracting scheme for uniform maximally decimated filter banks by setting proper relations between analysisfilters 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.

Key words: filter bank, aliasing, general parameter filter

CLC Number: