Fast algorithm and common structure design of recursive analysis and synthesis quadrature mirror filterbanks for digital radio mondiale

An Kai Li, Sheau Fang Lei, Wen Kai Tsai, Shin Chi Lai

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

This paper proposed a novel fast algorithm and common structure design of analysis and synthesis quadrature mirror filterbanks (AQMF, SQMF) on the spectral band replication (SBR) in digital radio mondiale (DRM). Based on recent Lai et al.'s concept, an extended issue is addressed from the view point of recursively computing the AQMF and SQMF coefficients. The proposed method also combines with the lifting scheme algorithm and canonical signed digit (CSD) multiplication. The results show that the proposed AQMF algorithm has a great improvement on computational complexity. For the recursive kernel computation (N=64), the proposed method has, respectively, 46.38% of multiplication reductions and 20.46% of addition reductions which can cover the shortcoming of the proposed SQMF. The overall complexity of the proposed algorithm (N=64) requires 1984 real multiplication and 128 CSD multiplication, 4704 real addition and 192 CSD addition, and 113 coefficients. It would be more efficient and more suitable than previous works for DRM applications.

原文English
主出版物標題2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
發行者Institute of Electrical and Electronics Engineers Inc.
頁面1199-1202
頁數4
ISBN(列印)9781479934324
DOIs
出版狀態Published - 2014 一月 1
事件2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014 - Melbourne, VIC, Australia
持續時間: 2014 六月 12014 六月 5

出版系列

名字Proceedings - IEEE International Symposium on Circuits and Systems
ISSN(列印)0271-4310

Other

Other2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
國家Australia
城市Melbourne, VIC
期間14-06-0114-06-05

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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