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Paper Abstract and Keywords
Presentation 2018-02-28 14:10
Channel Impulse Response Measurement Using USRP and GNU Radio Avoiding Uncertain Latency
Kaito Fukushima, Mika Kamishima, Yoji Yamada (NIT, Ishikawa College) SR2017-113
Abstract (in Japanese) (See Japanese page) 
(in English) Channel impulse response measurements are important in wireless system design. A software-defined radio equipment (PC-SDR) of a type that realizes wireless signal processing by combining a personal computer and A/D D/A converters has high flexibility and it is useful if it can measure the radio channel impulse response. However, in the PC-SDR environment, a latency associated with signal processing on the PC and a latency associated with data transmission between the PC and the radio peripheral exist, respectively, and the delay time varies depending on conditions. If the measurements are performed without considering the influence of the latency, the measurement results are not reliable. This paper proposes a method of synchronizing the transmission signal and the received signal based on the peak position of the cross correlation value between the baseband signal and the demodulated signal by using of M-sequences. To validate the proposed method, a channel impulse response measurement of a T-connector equipped with a coaxial cable open stub is performed in the 927 MHz band by combining M-sequences and time stretched pulses (TSP). The TSP signal is a proven technology in the field of acoustic system measurements.
Keyword (in Japanese) (See Japanese page) 
(in English) software defined radio / time stretched pulse / swept sine / maximal length sequence / cross correlation / latency / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 457, SR2017-113, pp. 9-16, Feb. 2018.
Paper # SR2017-113 
Date of Issue 2018-02-21 (SR) 
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)
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Conference Information
Committee RCS SR SRW  
Conference Date 2018-02-28 - 2018-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2018-02-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Channel Impulse Response Measurement Using USRP and GNU Radio Avoiding Uncertain Latency 
Sub Title (in English)  
Keyword(1) software defined radio  
Keyword(2) time stretched pulse  
Keyword(3) swept sine  
Keyword(4) maximal length sequence  
Keyword(5) cross correlation  
Keyword(6) latency  
Keyword(7)  
Keyword(8)  
1st Author's Name Kaito Fukushima  
1st Author's Affiliation National Institute of Technology, Ishikawa College (NIT, Ishikawa College)
2nd Author's Name Mika Kamishima  
2nd Author's Affiliation National Institute of Technology, Ishikawa College (NIT, Ishikawa College)
3rd Author's Name Yoji Yamada  
3rd Author's Affiliation National Institute of Technology, Ishikawa College (NIT, Ishikawa College)
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Speaker
Date Time 2018-02-28 14:10:00 
Presentation Time 25 
Registration for SR 
Paper # IEICE-SR2017-113 
Volume (vol) IEICE-117 
Number (no) no.457 
Page pp.9-16 
#Pages IEICE-8 
Date of Issue IEICE-SR-2018-02-21 


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