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Paper Abstract and Keywords
Presentation 2009-11-26 11:30
Resolution Improvement of Wideband Direction-Of-Arrival Estimation ``Squared-TOPS" by Signal Subspace Projection
Kazuki Okane, Tomoaki Ohtsuki (Keio Univ.) RCS2009-140
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, a new direction-of-arrival (DOA) estimation method for wideband signals is introduced. This new method uses both the signal subspace projection and the reference frequency selection in squared test of orthogonality of projected subspaces (Squared-TOPS) and estimates DOAs by measuring the orthogonal relation between the signal and noise subspaces of multiple frequency components of the signals.
The signal subspace projection and the reference frequency selection reduce some error terms in the matrix used for testing the orthogonality between signal subspaces and noise subspaces.
The resolution and root mean square error (RMSE) of the proposed method are compared with those of the coherent signal subspace method (CSSM), test of orthogonality of projected subspaces (TOPS) and test of orthogonality of frequency subspaces (TOFS) through computer simulations, respectively. The simulation results show that the resolution of the proposed method is better than that of the others except CSSM in whole signal-to-noise ratio (SNR) ranges. They also show that RMSE of the proposed method is the best in whole SNR ranges.
Keyword (in Japanese) (See Japanese page) 
(in English) DOA / Wideband signals / TOPS / / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 305, RCS2009-140, pp. 43-48, Nov. 2009.
Paper # RCS2009-140 
Date of Issue 2009-11-19 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 RCS2009-140

Conference Information
Committee RCS AP  
Conference Date 2009-11-26 - 2009-11-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Inst. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Adaptive Antenna, Equalization, Interference Canceller, MIMO, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2009-11-RCS-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Resolution Improvement of Wideband Direction-Of-Arrival Estimation ``Squared-TOPS" by Signal Subspace Projection 
Sub Title (in English)  
Keyword(1) DOA  
Keyword(2) Wideband signals  
Keyword(3) TOPS  
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1st Author's Name Kazuki Okane  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Tomoaki Ohtsuki  
2nd Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2009-11-26 11:30:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2009-140 
Volume (vol) vol.109 
Number (no) no.305 
Page pp.43-48 
#Pages 6 
Date of Issue 2009-11-19 (RCS) 

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