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Paper Abstract and Keywords
Presentation 2022-06-10 09:55
Time Domain Analysis of Emission Noise from Drone and Evaluation of Interference with Cellular Systems.
Ryota Sakai, Koh Watanabe, Satoshi Tanaka, Makoto Nagata (Kobe Univ.) EMCJ2022-16
Abstract (in Japanese) (See Japanese page) 
(in English) Drones are expected to be used in industrial applications. Within the small fuselage of a drone, various electronic modules and antennas for wireless communication are placed in close proximity. Radiated noise from the electronic modules can interfere with radio communications and cause the drone to malfunction. Drones are configured to perform various actions, and the characteristics of the radiated noise vary depending on the state of the action. In this research, we focused on the ever-changing action states of drones. Radiated noise was analyzed and evaluated in order to clarify the extent to which radiated noise in various behavioral states, such as the ascent state and the video recording state, affects wireless communications. We analyzed the effects of behavioral changes in the 10 MHz bandwidth of the LTE (long term evolution) communication band used in drone operations. The results showed that the radiated noise of drones is not always constant, but varies from a few dB to dozens of dB within a few milliseconds, with the most significant changes about 30 dB. This suggested that electromagnetic interference occurs when the radiated noise becomes stronger. The effect of radiated noise on LTE communication was also confirmed using an LTE communication simulator. Analysis of changes in the drone's behavioral state is expected to lead to clarification of the mechanism of radiated noise generation and contribute to appropriate electromagnetic interference countermeasures.
Keyword (in Japanese) (See Japanese page) 
(in English) cellular network / drone / electromagnetic emission / electromagnetic interference(EMI) / electronic module / long term evolution(LTE) / unmanned aerial vehicles(UAVs) / wireless communication  
Reference Info. IEICE Tech. Rep., vol. 122, no. 67, EMCJ2022-16, pp. 11-14, June 2022.
Paper # EMCJ2022-16 
Date of Issue 2022-06-03 (EMCJ) 
ISSN Online edition: ISSN 2432-6380
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 EMCJ2022-16

Conference Information
Committee EMCJ  
Conference Date 2022-06-10 - 2022-06-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2022-06-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Time Domain Analysis of Emission Noise from Drone and Evaluation of Interference with Cellular Systems. 
Sub Title (in English)  
Keyword(1) cellular network  
Keyword(2) drone  
Keyword(3) electromagnetic emission  
Keyword(4) electromagnetic interference(EMI)  
Keyword(5) electronic module  
Keyword(6) long term evolution(LTE)  
Keyword(7) unmanned aerial vehicles(UAVs)  
Keyword(8) wireless communication  
1st Author's Name Ryota Sakai  
1st Author's Affiliation Kobe University (Kobe Univ.)
2nd Author's Name Koh Watanabe  
2nd Author's Affiliation Kobe University (Kobe Univ.)
3rd Author's Name Satoshi Tanaka  
3rd Author's Affiliation Kobe University (Kobe Univ.)
4th Author's Name Makoto Nagata  
4th Author's Affiliation Kobe University (Kobe Univ.)
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Speaker Author-1 
Date Time 2022-06-10 09:55:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2022-16 
Volume (vol) vol.122 
Number (no) no.67 
Page pp.11-14 
Date of Issue 2022-06-03 (EMCJ) 

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