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Paper Abstract and Keywords
Presentation 2009-01-22 09:30
A Study on the Accurate Estimation of the Number of Weak Coherent Signals
Masashi Tsuji, Kenta Umebayashi, Yukihiro Kamiya, Yasuo Suzuki (Tokyo University of Agriculture and Technology) AP2008-160
Abstract (in Japanese) (See Japanese page) 
(in English) The most commonly used methods recently for the estimation of the number of incident signals are the Akaike Information Criterion (AIC) and Minimum Description Length (MDL) methods based on eigenvalues calculated by the eigenvalue decomposition of the correlation matrix of the received signals and information criterion. The Method for Estimating the Number of Signals without Eigendecomposition (MENSE) method uses the QR decomposition that has less computational cost and is superior to the AIC and MDL methods because of using the hankel correlation matrices which can suppress the correlation of the signals and noise effect. In this report, we present the limit of the estimating parameters in the MENSE method. For overcoming the limit, we propose the new method for estimating the number of signals with a multiplicity criterion that is defined by arithmetic and geometric mean and the Otsu Ichimura Criterion (OIC) that is estimating technique for the rank of the matrix. Computer simulation results show that the proposed method is superior to the MENSE and the AIC methods in closely spaced coherent signals.
Keyword (in Japanese) (See Japanese page) 
(in English) Array Signal Processing / Estimating the Number of Signals / Coherent Signals, / QR Decomposition / Multiplicity / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 386, AP2008-160, pp. 61-66, Jan. 2009.
Paper # AP2008-160 
Date of Issue 2009-01-14 (AP) 
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 AP2008-160

Conference Information
Committee AP  
Conference Date 2009-01-21 - 2009-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukuoka University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Etc. 
Paper Information
Registration To AP 
Conference Code 2009-01-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on the Accurate Estimation of the Number of Weak Coherent Signals 
Sub Title (in English)  
Keyword(1) Array Signal Processing  
Keyword(2) Estimating the Number of Signals  
Keyword(3) Coherent Signals,  
Keyword(4) QR Decomposition  
Keyword(5) Multiplicity  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Masashi Tsuji  
1st Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo University of Agriculture and Technology)
2nd Author's Name Kenta Umebayashi  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo University of Agriculture and Technology)
3rd Author's Name Yukihiro Kamiya  
3rd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo University of Agriculture and Technology)
4th Author's Name Yasuo Suzuki  
4th Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo University of Agriculture and Technology)
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Speaker Author-1 
Date Time 2009-01-22 09:30:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2008-160 
Volume (vol) vol.108 
Number (no) no.386 
Page pp.61-66 
#Pages 6 
Date of Issue 2009-01-14 (AP) 

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