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Paper Abstract and Keywords
Presentation 2019-11-14 13:15
An Undersampling Frequency Detection Method Using Phase Difference of Clock Signals and Output Signals of Two S/H circuits
Osamu Wada, Hiroyuki Mizutani, Hideyuki Nakamizo, Kazutomi Mori (Mitsubishi Electric) MW2019-101
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, an undersampling frequency detection method using phase difference of a clock and an output signal of two S/H circuits is proposed. Two S/H circuits are placed in parallel, and clock signals of each S/H circuits are set to have same frequency and different phases. The frequency of input signals of the S/H circuit is expressed by an integer number n, the frequency of the given clock signal and the frequency of the measured output signal of the S/H circuit. This integer number n is calculated uniquely by using the phase difference value between measured output signals and the set phase difference value between clock signals of two S/H circuits. The proposed method can identify the frequency of input signals by the simple calculation. The above calculation is performed for the number of frequency components of the output signal of the S/H circuit if multiple signals are input. The proposed method calculates the frequency of the input signal without increasing the measurement time by increasing the number of FFT processes and the RF circuit scale. Experimental results show that the proposed method can identify frequency of unknown input signals accurately.
Keyword (in Japanese) (See Japanese page) 
(in English) Undersampling / S/H circuit / Frequency detection / / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 292, MW2019-101, pp. 7-12, Nov. 2019.
Paper # MW2019-101 
Date of Issue 2019-11-07 (MW) 
ISSN Print edition: ISSN 0913-5685  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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF MW2019-101

Conference Information
Committee MW  
Conference Date 2019-11-14 - 2019-11-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Minami Daido Villa. Tamokuteki Koryu Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2019-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Undersampling Frequency Detection Method Using Phase Difference of Clock Signals and Output Signals of Two S/H circuits 
Sub Title (in English)  
Keyword(1) Undersampling  
Keyword(2) S/H circuit  
Keyword(3) Frequency detection  
1st Author's Name Osamu Wada  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
2nd Author's Name Hiroyuki Mizutani  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
3rd Author's Name Hideyuki Nakamizo  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
4th Author's Name Kazutomi Mori  
4th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Date Time 2019-11-14 13:15:00 
Presentation Time 25 
Registration for MW 
Paper # IEICE-MW2019-101 
Volume (vol) IEICE-119 
Number (no) no.292 
Page pp.7-12 
#Pages IEICE-6 
Date of Issue IEICE-MW-2019-11-07 

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