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Paper Abstract and Keywords
Presentation 2026-06-17 15:25
Correction of Monopulse Angle Estimation Bias for Off-Boresight Target in Element-Level Digital Array Radar Using Delta-Delta Beam
Ryuhei Takahashi, Tsubasa Terada (MELCO) SANE2026-27
Abstract (in Japanese) (See Japanese page) 
(in English) This paper demonstrates that inherent bias errors arise when monopulse angle estimation is independently performed in the azimuth and elevation directions for off-boresight target signal.
Furthermore, we derive an approximate expression for this bias error. To eliminate this error, we propose an accurate bias correction method that leverages the capabilities of an element-level digital beamforming (DBF) radar. Specifically, the proposed method accurately compensates for the bias error by introducing a novel delta-delta beam in addition to the conventional sum, azimuth difference, and elevation difference beams.
Keyword (in Japanese) (See Japanese page) 
(in English) radar / monopulse / angle estimation / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 71, SANE2026-27, pp. 120-125, June 2026.
Paper # SANE2026-27 
Date of Issue 2026-06-10 (SANE) 
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 SANE2026-27

Conference Information
Committee SANE  
Conference Date 2026-06-17 - 2026-06-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Information Technology R&D Center, MITSUBISHI Electric Corp. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Radar, Tracking, EW Technologies and general 
Paper Information
Registration To SANE 
Conference Code 2026-06-SANE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Correction of Monopulse Angle Estimation Bias for Off-Boresight Target in Element-Level Digital Array Radar Using Delta-Delta Beam 
Sub Title (in English)  
Keyword(1) radar  
Keyword(2) monopulse  
Keyword(3) angle estimation  
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1st Author's Name Ryuhei Takahashi  
1st Author's Affiliation Mitsubishi Electric Corporation (MELCO)
2nd Author's Name Tsubasa Terada  
2nd Author's Affiliation Mitsubishi Electric Corporation (MELCO)
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Speaker Author-1 
Date Time 2026-06-17 15:25:00 
Presentation Time 20 minutes 
Registration for SANE 
Paper # SANE2026-27 
Volume (vol) vol.126 
Number (no) no.71 
Page pp.120-125 
#Pages 6 
Date of Issue 2026-06-10 (SANE) 

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