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| Presentation | 2013-01-25 14:40 Study on acoustic echo canceller for in-vehicle Takuya Sawada, Kensaku Fujii (Univ of Hyogo), Mitsuji Muneyasu (Kansai Univ), Masakazu Morimoto (Univ of Hyogo)  EA2012-140 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes a new method for identifying unknown systems expressed by the cascade arrangement of recursive and non-recursive adaptive filters. This method use. The equation method can identify the unknown system more quickly and stably than the other method. On the other hand, an identification error called is caused by a disturbance superposing on the output of the unknown system. Many methods to reduce the bias error are thus proposed. This also means that the bias error can be neglected when the disturbence level is low. In such systems, the stable performance is more important issue than the bias error, especially when the synthesis of the output approximate to that of the unknown system is required for the adaptive filter. However, it is difficult to guarantee the stable performance to the recursive filter with the coefficients copied from the adaptive filter. This paper hence proposes to apply the lattice type filter to the adaptive recursive filter. This paper also verifies the performance of the proposed method by using computer simulations. The computer simulations use impluse response that is taken in the car.Therefore, this method is applied to the vehicle acoustic echo canceller can be expected. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | cascade connection / lattice filter / equation error method / double talk / step size control / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 388, EA2012-140, pp. 121-126, Jan. 2013. | |
| Paper # | EA2012-140 | |
| Date of Issue | 2013-01-17 (EA) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EA2012-140 |
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| Conference Information | |
| Committee | US EA |
| Conference Date | 2013-01-24 - 2013-01-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kambaikan, Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics，and Related Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2013-01-US-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on acoustic echo canceller for in-vehicle |
| Sub Title (in English) | |
| Keyword(1) | cascade connection |
| Keyword(2) | lattice filter |
| Keyword(3) | equation error method |
| Keyword(4) | double talk |
| Keyword(5) | step size control |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Takuya Sawada |
| 1st Author's Affiliation | University of Hyogo (Univ of Hyogo) |
| 2nd Author's Name | Kensaku Fujii |
| 2nd Author's Affiliation | University of Hyogo (Univ of Hyogo) |
| 3rd Author's Name | Mitsuji Muneyasu |
| 3rd Author's Affiliation | Kansai University (Kansai Univ) |
| 4th Author's Name | Masakazu Morimoto |
| 4th Author's Affiliation | University of Hyogo (Univ of Hyogo) |
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| Speaker | Author-1 |
| Date Time | 2013-01-25 14:40:00 |
| Presentation Time | 20 minutes |
| Registration for | EA |
| Paper # | EA2012-140 |
| Volume (vol) | vol.112 |
| Number (no) | no.388 |
| Page | pp.121-126 |
| #Pages | 6 |
| Date of Issue | 2013-01-17 (EA) |
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