Multiplierless perfect reconstruction modulated filter banks with sum-of-powers-of-two coefficients
作者： S.C. Chan , W. Liu , K.L. Ho
DOI: 10.1109/97.923040
关键词:
摘要: This paper proposes an efficient class of perfect reconstruction (PR) modulated filter banks (MFB) using sum-of-powers-of-two (SOPOT) coefficients. is based on a modified factorization the DCT-IV matrix and lossless lattice structure prototype filter, which allows coefficients to be represented in SOPOT form without affecting PR condition. A genetic algorithm (GA) then used search for these Design examples show that MFB with good frequency characteristic can designed very low implementation complexity. The usefulness approach demonstrated 16 channel design example.
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