| Presentation | 2000/11/18 A Study on Multi-Channel System Identification Kensaku FUJII, Mitsuji MUNEYASU, Yoshinori TANAKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes an adaptive algorithm to be able to identify unknown multi-channel systems even where the ratio of the independent component involved in each reference signal is very low. In the multi-channel system identification using the reference signals with such strong cross-correlation, the conventional adaptive algorithms cannot estimate the coefficients of adaptive filters. To solve this problem, the pre-processing techniques to increase the independent component involved in the reference signals fed into the unknown systems are studied. Unfortunately, the pre-processing distorts the reference signals; therefore the pre-processing of immoderately increasing the independent component connot be applied. However, the little increase provides unsatisfied performance to the adaptive system. This paper derives an adaptive algorithm to enable the estimation even where the ratio of the independent components is about -40 dB. In this adaptive algorithm, the pre-processing reducing the cross-correla components is used only for the estimation; therefore, the pre-processed reference signals are not fed into the unknown systems. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | cross-correlation / stereo echo canceller / pre-processing / multi-channel system indentification |
| Paper # | EA2000-75 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2000/11/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Multi-Channel System Identification |
| Sub Title (in English) | |
| Keyword(1) | cross-correlation |
| Keyword(2) | stereo echo canceller |
| Keyword(3) | pre-processing |
| Keyword(4) | multi-channel system indentification |
| 1st Author's Name | Kensaku FUJII |
| 1st Author's Affiliation | FUJITSU LABORATORIES LTD. Wireless Communication Systems lab. (L40)() |
| 2nd Author's Name | Mitsuji MUNEYASU |
| 2nd Author's Affiliation | HIROSHIMA UNIVERSITY Faculty of Engineering |
| 3rd Author's Name | Yoshinori TANAKA |
| 3rd Author's Affiliation | FUJITSU LABORATORIES LTD. Wireless Communication Systems lab. (L40) |
| Date | 2000/11/18 |
| Paper # | EA2000-75 |
| Volume (vol) | vol.100 |
| Number (no) | 468 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |