Presentation 2011-10-21
Closed-loop Resonator Fiber Optic Gyro with All Digital Signal Processing
Xijing Wang, Masato Kishi, Zuyuan He, Kazuo Hotate,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(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)
Keyword(in English) Gyroscope / fiber optics sensor / bipolar digital serrodyne phase modulation / closed loop / digital signal processing
Paper # OFT2011-46
Date of Issue

Conference Information
Committee OFT
Conference Date 2011/10/13(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To Optical Fiber Technology (OFT)
Language ENG
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
1st Author's Name Xijing Wang
1st Author's Affiliation Department of Electrical Engineering and Information Systems, The University of Tokyo()
2nd Author's Name Masato Kishi
2nd Author's Affiliation Department of Electrical Engineering and Information Systems, The University of Tokyo
3rd Author's Name Zuyuan He
3rd Author's Affiliation Department of Electrical Engineering and Information Systems, The University of Tokyo
4th Author's Name Kazuo Hotate
4th Author's Affiliation Department of Electrical Engineering and Information Systems, The University of Tokyo
Date 2011-10-21
Paper # OFT2011-46
Volume (vol) vol.111
Number (no) 246
Page pp.pp.-
#Pages 6
Date of Issue