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Paper Abstract and Keywords
Presentation 2025-03-06 15:40
Onboard DOA Estimation Using Simulated Quantum Annealing
Shunsuke Uehashi, Satoshi Yoshima (Mitsubishi Electric) SAT2024-79
Abstract (in Japanese) (See Japanese page) 
(in English) In satellite communication systems, the degradation of communication quality due to unauthorized or unintended interference signals is a significant issue. It is essential to detect interference signals from the ground and estimate their direction of arrival (DOA).
The MUSIC method and compressed sensing are widely known as representative techniques for DOA estimation. However, in satellite-mounted applications, the computational burden and circuit scale increase significantly with the number of antennas, posing challenges for real-time processing and hardware implementation.To address these issues, this paper proposes a DOA estimation method based on combinatorial optimization. Recently, quantum annealing and simulated quantum annealing have gained attention as effective approaches for solving combinatorial optimization problems, with applications expanding into wireless communications and sensing.The proposed method applies this approach to DOA estimation by formulating traditional compressed sensing as a combinatorial optimization problem and transforming it into a QUBO problem. This transformation enables efficient low-complexity solution searching using simulated quantum annealing.Through computational simulations, the DOA estimation accuracy of the proposed method was evaluated. The results demonstrate that the proposed method can accurately estimate two incoming waves separated by 2.7 degrees, a case where traditional compressed sensing using the OMP algorithm struggles to separate the signals.
Keyword (in Japanese) (See Japanese page) 
(in English) Direction of Arrival (DOA) / Simulated Quantum Annealing / Compressed Sensing / QUBO / FPGA / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 408, SAT2024-79, pp. 95-100, March 2025.
Paper # SAT2024-79 
Date of Issue 2025-02-26 (SAT) 
ISSN 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 SAT2024-79

Conference Information
Committee SANE SAT  
Conference Date 2025-03-05 - 2025-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Nago Civic Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Application and General Issues 
Paper Information
Registration To SAT 
Conference Code 2025-03-SANE-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Onboard DOA Estimation Using Simulated Quantum Annealing 
Sub Title (in English)  
Keyword(1) Direction of Arrival (DOA)  
Keyword(2) Simulated Quantum Annealing  
Keyword(3) Compressed Sensing  
Keyword(4) QUBO  
Keyword(5) FPGA  
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Keyword(8)  
1st Author's Name Shunsuke Uehashi  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
2nd Author's Name Satoshi Yoshima  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Speaker Author-1 
Date Time 2025-03-06 15:40:00 
Presentation Time 20 minutes 
Registration for SAT 
Paper # SAT2024-79 
Volume (vol) vol.124 
Number (no) no.408 
Page pp.95-100 
#Pages 6 
Date of Issue 2025-02-26 (SAT) 

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