| Presentation | 2015-06-09 Implementation of Bias Free Pre-inverse Active Noise Control with Sub Filter Ryousuke Minagi, Kazushi Otsuki, Naoto Sasaoka, Yoshio Itoh, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As an active Noise Control, filtered-x is widely used. Unfortunately, the filtered-x has a modeling error problem by second path characteristic change. Thus, the filtered-x ANC degrades its performance and become unstable. In order to solve the problem, a pre-inverse type ANC has been proposed. The method estimates the inverse transfer function of secondary path, and the filter which has the invers transfer function is adopted after a control filter. Therefore, an ANC can use a flat delayed signal instead of a filtered input noise, and then the ANC can becomes stable. However, since conventional pre-inverse type ANC uses a series adoptive filter to estimate the inverse transfer function, the estimation accuracy is degraded due to bias error. This paper adapts a sub filter which estimates secondary path as parallel type system identification. Thus, the inverse transfer function can be estimated with bias free. In the paper, the proposed ANC is implemented in DSP. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | feed forward type active noise control / Adaptive Filter |
| Paper # | SIS2015-10 |
| Date of Issue | 2015-06-01 (SIS) |
| Conference Information | |
| Committee | SIS |
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| Conference Date | 2015/6/8(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Arkas SASEBO |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Smart Personal Systems, etc. |
| Chair | Mitsuji Muneyasu(Kansai Univ.) |
| Vice Chair | Hirokazu Tanaka(Toshiba) / Takayuki Nakachi(NTT) |
| Secretary | Hirokazu Tanaka(Nagoya City Univ.) / Takayuki Nakachi(Toshiba) |
| Assistant | Hiroyuki Tsuji(Kanagawa Inst. of Tech.) / Hakaru Tamukoh(Kyushu Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media System |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Implementation of Bias Free Pre-inverse Active Noise Control with Sub Filter |
| Sub Title (in English) | |
| Keyword(1) | feed forward type active noise control |
| Keyword(2) | Adaptive Filter |
| 1st Author's Name | Ryousuke Minagi |
| 1st Author's Affiliation | Tottori University(Tottori Univ.) |
| 2nd Author's Name | Kazushi Otsuki |
| 2nd Author's Affiliation | Tottori University(Tottori Univ.) |
| 3rd Author's Name | Naoto Sasaoka |
| 3rd Author's Affiliation | Tottori University(Tottori Univ.) |
| 4th Author's Name | Yoshio Itoh |
| 4th Author's Affiliation | Tottori University(Tottori Univ.) |
| Date | 2015-06-09 |
| Paper # | SIS2015-10 |
| Volume (vol) | vol.115 |
| Number (no) | SIS-75 |
| Page | pp.pp.51-56(SIS), |
| #Pages | 6 |
| Date of Issue | 2015-06-01 (SIS) |