IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2006-04-21 15:30
A Feedback Approach and Its Learning Algorithm for Overcomplete Blind Source Separation
Haruo Katou, Kenji Nakayama, Akihiro Hirano (Kanazawa Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) A feedback structure and its learning algorithm are proposed for overcomplete blind source separation, where the number of sources is larger than that of sensors. In the first phase, the signal sources are
separated so as to satisfy the condition, under which one signal source
is not included in different outputs. By setting the number of the
sensors to be more than a half of the sources, at least one output
includes a single source. This output is selected based on property of
a single source. Furthermore, this output is fed back and cancelled
from observed signals. The selected single source, information about a
mixing process and histogram of the observations and the separated
source are used for this cancellation. In the second phase, the same
process is carried out by using the modified observations, in which the
source, separated in the first phase, is cancelled. Like this, in the
proposed method, the source separation is repeated by reducing the
number of equivalent sources. Simulations using speech signals demonstrate usefulness of the proposed method compared to the conventional methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Signal source separation / Overcomplete, / Feedback / Speech signal / Learning algorithm / Fundamental period, / Histogram /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 21, SIP2006-9, pp. 49-54, April 2006.
Paper # SIP2006-9 
Date of Issue 2006-04-14 (SIP, IE) 
ISSN Print edition: ISSN 0913-5685
Download PDF

Conference Information
Committee IE SIP  
Conference Date 2006-04-21 - 2006-04-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SIP 
Conference Code 2006-04-IE-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Feedback Approach and Its Learning Algorithm for Overcomplete Blind Source Separation 
Sub Title (in English)  
Keyword(1) Signal source separation  
Keyword(2) Overcomplete,  
Keyword(3) Feedback  
Keyword(4) Speech signal  
Keyword(5) Learning algorithm  
Keyword(6) Fundamental period,  
Keyword(7) Histogram  
Keyword(8)  
1st Author's Name Haruo Katou  
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 2006-04-21 15:30:00 
Presentation Time 25 minutes 
Registration for SIP 
Paper # SIP2006-9, IE2006-9 
Volume (vol) vol.106 
Number (no) no.21(SIP), no.22(IE) 
Page pp.49-54 
#Pages
Date of Issue 2006-04-14 (SIP, IE) 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan