Low-complexity algorithm of recursive analysis and synthesis quadrature mirror filterbanks for digital radio mondiale

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

研究成果: Conference contribution

摘要

This paper proposed a low-complexity algorithm and of analysis and synthesis quadrature mirror filter banks (AQMF, SQMF) on the spectral band replication (SBR) for digital radio mondiale (DRM). Based on recent Lai et al.'s concept, an extended issue is addressed form the view point of recursively computing the AQMF and SQMF coefficients. The proposed recursively computational method not only combines with the lifting scheme algorithm but also employs the fixed-coefficient concept to introduce the technique of canonical signed digit (CSD) multiplication. The results show that the proposed QMFs algorithm has a great improvement on multiplication of computational complexity. For the recursive kernel computation (N=64), the proposed method can transfers the constant multiplication into addition by using CSD technique which brings a great improvement in the complexity of multiplication and the requirement of coefficient. The overall complexity of the proposed algorithm (N=64) has 93.46% reduction of multiplication and 73.73% reduction of coefficient. It would be more efficient and more suitable than previous works for DRM applications.

原文English
主出版物標題Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014
編輯Junzo Watada, Akinori Ito, Chien-Ming Chen, Jeng-Shyang Pan, Han-Chieh Chao
發行者Institute of Electrical and Electronics Engineers Inc.
頁面85-88
頁數4
ISBN(電子)9781479953905
DOIs
出版狀態Published - 2014 十二月 24
事件10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014 - Kitakyushu, Japan
持續時間: 2014 八月 272014 八月 29

出版系列

名字Proceedings - 2014 10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014

Other

Other10th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIH-MSP 2014
國家/地區Japan
城市Kitakyushu
期間14-08-2714-08-29

All Science Journal Classification (ASJC) codes

  • 資訊系統
  • 人工智慧
  • 訊號處理

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