| Paper Abstract and Keywords |
| Presentation |
2005-06-27 11:10
Analysis of Signal Separation and Signal Distortion in Feedforward and Feedback Blind Source Separation Based on Source Spectra
Akihide Horita, Kenji Nakayama, Akihiro Hirano (Kanazawa Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Source separation and signal distortion in three kinds of blind soure separation (BSS) systems with convolutive mixture are analyzed. They consist of two feedforward BSS system, one trained in the time domain and the other trained in the frequency domain, and a feedback BSS system, trained in the time domain. An evaluation measure of the signal distortion has been investigated and conditions for source separation and distortion free have been derived. Based on these conditions, source separation and signal distortion have been analyzed. The feedforward BSS systems have some degree of freedom and the output spectrum can be changed. The feedforward BSS system, trained in the frequency domain, has a weighting effect, which can suppress signal distortion. However, this weighting effect is only effective only when the source spectra are similar to each other. Since, the feedforward BSS system, trained in the time domain, does not have any constraints on signal distortion free, its output signals can be easily distorted. A new learning algorithm with a distortion free constraint has been proposed. On the other hand, the feedback BSS system can satisfy both source separation and distortion free conditions simultaneously. Performed simulation results support our theoretical analysis. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Blind source separation / Signal distortion / Feedforward / Convergence property / Controlling signal distortion / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 149, SIP2005-29, pp. 25-30, June 2005. |
| Paper # |
SIP2005-29 |
| Date of Issue |
2005-06-20 (CAS, VLD, SIP) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
CAS SIP VLD |
| Conference Date |
2005-06-27 - 2005-06-28 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Tohoku University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Signal Processing, LSI, etc. |
| Paper Information |
| Registration To |
SIP |
| Conference Code |
2005-06-CAS-SIP-VLD |
| Language |
English (Japanese title is available) |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Analysis of Signal Separation and Signal Distortion in Feedforward and Feedback Blind Source Separation Based on Source Spectra |
| Sub Title (in English) |
|
| Keyword(1) |
Blind source separation |
| Keyword(2) |
Signal distortion |
| Keyword(3) |
Feedforward |
| Keyword(4) |
Convergence property |
| Keyword(5) |
Controlling signal distortion |
| Keyword(6) |
|
| Keyword(7) |
|
| Keyword(8) |
|
| 1st Author's Name |
Akihide Horita |
| 1st Author's Affiliation |
Kanazawa University (Kanazawa Univ.) |
| 2nd Author's Name |
Kenji Nakayama |
| 2nd Author's Affiliation |
Kanazawa University (Kanazawa Univ.) |
| 3rd Author's Name |
Akihiro Hirano |
| 3rd Author's Affiliation |
Kanazawa University (Kanazawa Univ.) |
| 4th Author's Name |
|
| 4th Author's Affiliation |
() |
| 5th Author's Name |
|
| 5th Author's Affiliation |
() |
| 6th Author's Name |
|
| 6th Author's Affiliation |
() |
| 7th Author's Name |
|
| 7th Author's Affiliation |
() |
| 8th Author's Name |
|
| 8th Author's Affiliation |
() |
| 9th Author's Name |
|
| 9th Author's Affiliation |
() |
| 10th Author's Name |
|
| 10th Author's Affiliation |
() |
| 11th Author's Name |
|
| 11th Author's Affiliation |
() |
| 12th Author's Name |
|
| 12th Author's Affiliation |
() |
| 13th Author's Name |
|
| 13th Author's Affiliation |
() |
| 14th Author's Name |
|
| 14th Author's Affiliation |
() |
| 15th Author's Name |
|
| 15th Author's Affiliation |
() |
| 16th Author's Name |
|
| 16th Author's Affiliation |
() |
| 17th Author's Name |
|
| 17th Author's Affiliation |
() |
| 18th Author's Name |
|
| 18th Author's Affiliation |
() |
| 19th Author's Name |
|
| 19th Author's Affiliation |
() |
| 20th Author's Name |
|
| 20th Author's Affiliation |
() |
| Speaker |
Author-1 |
| Date Time |
2005-06-27 11:10:00 |
| Presentation Time |
25 minutes |
| Registration for |
SIP |
| Paper # |
CAS2005-5, VLD2005-16, SIP2005-29 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.145(CAS), no.147(VLD), no.149(SIP) |
| Page |
pp.25-30 |
| #Pages |
6 |
| Date of Issue |
2005-06-20 (CAS, VLD, SIP) |
|