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Paper Abstract and Keywords
Presentation 2017-08-24 10:00
DOA Estimation for Coprime Arrays Without Knowledge of Source Number
Anh-Tuan Nguyen, Takashi Matsubara, Takakazu Kurokawa (NDA) AP2017-69
Abstract (in Japanese) (See Japanese page) 
(in English) Pal et al. use a coprime array to extend it to a larger virtual ULA, and after spatial smoothing technique is implemented to make the covariance matrix, an increased number of sources can be detected. Liu et al. use the nuclear norm minimization to interpolate the missing samples to make a larger virtual ULA, so they can increase the estimation accuracy but also distinguish more sources than Pal's method. However, all of the subspace-based DOA estimation algorithms require a prior knowledge of the number of sources. On the other hand, using a symmetric ULA, Qian's method and it's improved method have been proposed for a DOA estimation which does not need to know the number of sources prior. In this study, we combine those methods to propose a DOA estimation method for coprime arrays, which can detect more sources than the number of array elements without knowledge of number of sources. The numerical examples demonstrate validity of the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) DOA estimation / Source number estimation / Nested array / Coprime array / Toeplitz matrix / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 181, AP2017-69, pp. 7-12, Aug. 2017.
Paper # AP2017-69 
Date of Issue 2017-08-17 (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 AP2017-69

Conference Information
Committee AP  
Conference Date 2017-08-24 - 2017-08-25 
Place (in Japanese) (See Japanese page) 
Place (in English) National Institute of Technology, Hakodate College 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2017-08-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) DOA Estimation for Coprime Arrays Without Knowledge of Source Number 
Sub Title (in English)  
Keyword(1) DOA estimation  
Keyword(2) Source number estimation  
Keyword(3) Nested array  
Keyword(4) Coprime array  
Keyword(5) Toeplitz matrix  
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Keyword(7)  
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1st Author's Name Anh-Tuan Nguyen  
1st Author's Affiliation National Defense Academy (NDA)
2nd Author's Name Takashi Matsubara  
2nd Author's Affiliation National Defense Academy (NDA)
3rd Author's Name Takakazu Kurokawa  
3rd Author's Affiliation National Defense Academy (NDA)
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Speaker Author-1 
Date Time 2017-08-24 10:00:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2017-69 
Volume (vol) vol.117 
Number (no) no.181 
Page pp.7-12 
#Pages 6 
Date of Issue 2017-08-17 (AP) 

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