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Paper Abstract and Keywords
Presentation 2011-10-21 11:20
Closed-loop Resonator Fiber Optic Gyro with All Digital Signal Processing
Xijing Wang, Masato Kishi, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2011-46
Abstract (in Japanese) (See Japanese page) 
(in English) A closed-loop resonator fiber optic gyro (R-FOG) with all digital signal processing is experimentally demonstrated. The closed-loop operation is needed for the R-FOG to achieve high linearity in a wide dynamic range, in which the frequencies of both the clockwise (CW) and the counter clockwise (CCW) lightwaves are maintained at the resonator's resonant frequency. To achieve the closed-loop operation, an additional bipolar digital serrodyne waveform with gentle slope is added to the bipolar digital serrodyne waveform, which serves as a countermeasure against multiple performance degradation factors in the R-FOG. A field programmable gated array (FPGA) based digital processor is developed to realize not only the full operation of the bipolar digital serrodyne waveform but also other signal processing functions for the R-FOG. Measurement results of different rotation speeds show good linearity due to the adoption of the closed-loop operation.
Keyword (in Japanese) (See Japanese page) 
(in English) Gyroscope / fiber optics sensor / bipolar digital serrodyne phase modulation / closed loop / digital signal processing / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 246, OFT2011-46, pp. 79-84, Oct. 2011.
Paper # OFT2011-46 
Date of Issue 2011-10-13 (OFT) 
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)
Download PDF OFT2011-46

Conference Information
Committee OFT  
Conference Date 2011-10-20 - 2011-10-21 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2011-10-OFT 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Closed-loop Resonator Fiber Optic Gyro with All Digital Signal Processing 
Sub Title (in English)  
Keyword(1) Gyroscope  
Keyword(2) fiber optics sensor  
Keyword(3) bipolar digital serrodyne phase modulation  
Keyword(4) closed loop  
Keyword(5) digital signal processing  
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1st Author's Name Xijing Wang  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
2nd Author's Name Masato Kishi  
2nd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
3rd Author's Name Zuyuan He  
3rd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
4th Author's Name Kazuo Hotate  
4th Author's Affiliation The University of Tokyo (Univ. of Tokyo)
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Speaker Author-4 
Date Time 2011-10-21 11:20:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2011-46 
Volume (vol) vol.111 
Number (no) no.246 
Page pp.79-84 
#Pages 6 
Date of Issue 2011-10-13 (OFT) 

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