| Presentation | 2017-08-24 Computational Complexity Reduction for Third-order Volterra Filter Based on Singular Value Decomposition and the Application to the Compensation of Third-order Nonlinear Distortions Yuya Nakahira, Kenta Iwai, Yoshinobu Kajikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Nonlinear distortions of loudspeaker systems affect the sound quality and should be accordingly compensated by any linearlzation technique. One of the linearization techniques is based on Volterra filter and requires to identify Volterra kernels of a target loudspeaker. Volterra filter requires huge computational complexity. In this paper, we propose a computational complexity reduction method for the third--order Volterra filter based on singular value decomposition. In the proposed reduction method, the needed coefficients of the third-order Volterra filter are determined according to the symmetric property and the singular value decomposition is then applied to the coefficients. The computational complexity is reduced by removing paths with small singular values. Hence, the proposed method can efficiently reduce the computational complexity. Experimental results demonstrate that the proposed method can reduce the computational complexity while maintaining the compensation performance of the linearization system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Volterra filter / loudspeaker / nonlinear distortion / singular value decomposition / reduction of computational complexity |
| Paper # | SIP2017-53 |
| Date of Issue | 2017-08-17 (SIP) |
| Conference Information | |
| Committee | SIP |
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| Conference Date | 2017/8/24(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Denki University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masahiro Okuda(Univ. of Kitakyushu) |
| Vice Chair | Shogo Muramatsu(Niigata Univ.) / Naoyuki Aikawa(TUS) |
| Secretary | Shogo Muramatsu(Chiba Inst. of Tech.) / Naoyuki Aikawa(Takushoku Univ.) |
| Assistant | Masayoshi Nakamoto(Hiroshima Univ.ひろ) |
| Paper Information | |
| Registration To | Technical Committee on Signal Processing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Computational Complexity Reduction for Third-order Volterra Filter Based on Singular Value Decomposition and the Application to the Compensation of Third-order Nonlinear Distortions |
| Sub Title (in English) | |
| Keyword(1) | Volterra filter |
| Keyword(2) | loudspeaker |
| Keyword(3) | nonlinear distortion |
| Keyword(4) | singular value decomposition |
| Keyword(5) | reduction of computational complexity |
| 1st Author's Name | Yuya Nakahira |
| 1st Author's Affiliation | Kansai University(Kansai Univ.) |
| 2nd Author's Name | Kenta Iwai |
| 2nd Author's Affiliation | Kansai University(Kansai Univ.) |
| 3rd Author's Name | Yoshinobu Kajikawa |
| 3rd Author's Affiliation | Kansai University(Kansai Univ.) |
| Date | 2017-08-24 |
| Paper # | SIP2017-53 |
| Volume (vol) | vol.117 |
| Number (no) | SIP-180 |
| Page | pp.pp.27-32(SIP), |
| #Pages | 6 |
| Date of Issue | 2017-08-17 (SIP) |