Presentation | 2006-06-23 Alias Free Subband Adaptive Digital Filter based on Recursive Least Squares Algorithm for Fixed Point Arithmetic Kota ENDO, Kiyoshi NISHIKAWA, Hitoshi KIYA, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | The recursive least squares (RLS) algorithm is characterized by a fast rate of convergence. But the RLS algorithm requires huge amount of computational complexities. And, when finite word-length arithmetic are used, the adaptive filter could not be updated properly, so that coefficients of the adaptive filter could diverge. In order to resolve these problems, the fast RLS algorithms and the frequency domain adaptive filters are proposed. Though they can reduce the amount of computation, they become unstable when implemented with short word-length. The process in the frequency domain causes the aliasing that makes residual error worse. In this paper, we propose the alias free subband adaptive digital filter based on the RLS algorithm that can reduce the computational complexity and the necessary word-length. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | alias free subband adaptive digital filter / recursive least squares / finite word-length arithmetic |
Paper # | CAS2006-20,VLD2006-33,SIP2006-43 |
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Committee | SIP |
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Conference Date | 2006/6/16(1days) |
Place (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Signal Processing (SIP) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Alias Free Subband Adaptive Digital Filter based on Recursive Least Squares Algorithm for Fixed Point Arithmetic |
Sub Title (in English) | |
Keyword(1) | alias free subband adaptive digital filter |
Keyword(2) | recursive least squares |
Keyword(3) | finite word-length arithmetic |
1st Author's Name | Kota ENDO |
1st Author's Affiliation | Department of Electrical Engineering, Tokyo Metropolitan University() |
2nd Author's Name | Kiyoshi NISHIKAWA |
2nd Author's Affiliation | Department of Electrical Engineering, Tokyo Metropolitan University |
3rd Author's Name | Hitoshi KIYA |
3rd Author's Affiliation | Department of Electrical Engineering, Tokyo Metropolitan University |
Date | 2006-06-23 |
Paper # | CAS2006-20,VLD2006-33,SIP2006-43 |
Volume (vol) | vol.106 |
Number (no) | 116 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |