| Presentation | 1997/6/27 Conditions for Convergence of a Delayless Subband Adaptive Filter and Its Efficient Implementation Kiyoshi NISHIKAWA, Hitoshi KIYA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper considers the convergence characteristics of the delayless subband adaptive digital filters (ADFs) proposed by Morgan and Thi. Although the delayless subband ADFs are shown to have a possibility to enable the alias-free adaptive processing, the theoretical consideration of the convergence has not been developed. In this paper, a formula for the step-size parameter to ensure the convergence of ADFs is derived by considering the update recursion of ADFs. Besides, the derived formula enables self-adjusting of its value to ensure convergence regardless of the type of analysis filter bank employed or characteristics of the input signals. The validity of the formula is shown through the results of computer simulations. Consideration on the efficient implementation of the structure using short-length analysis filters is given through the results of simulations. It is shown that low computational-complexity realization of alias-free subband ADFs can be implemented with short-length analysis filters. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Adaptive signal processing / Delayless subband adaptive filters / Multirate signal processing |
| Paper # | CAS97-27 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 1997/6/27(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Conditions for Convergence of a Delayless Subband Adaptive Filter and Its Efficient Implementation |
| Sub Title (in English) | |
| Keyword(1) | Adaptive signal processing |
| Keyword(2) | Delayless subband adaptive filters |
| Keyword(3) | Multirate signal processing |
| 1st Author's Name | Kiyoshi NISHIKAWA |
| 1st Author's Affiliation | Graduate Cource of Electronics Eng., Graduate School of Eng., Tokyo Metropolitan Univ.() |
| 2nd Author's Name | Hitoshi KIYA |
| 2nd Author's Affiliation | Graduate Cource of Electronics Eng., Graduate School of Eng., Tokyo Metropolitan Univ. |
| Date | 1997/6/27 |
| Paper # | CAS97-27 |
| Volume (vol) | vol.97 |
| Number (no) | 141 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |