| Presentation | 2011-08-26 Performance Improvement of the Resonator Fiber Optic Gyro by Precisely Controlling the Bipolar Digital Serrodyne Scheme Xijing Wang, Masato Kishi, Zuyuan He, Kazuo Hotate, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Performance improvement of the resonator fiber optic gyro (R-FOG) is demonstrated by precisely controlling the bipolar digital serrodyne scheme. Suppression of the backscattering induced performance degradation is experimentally demonstrated. Previously, a method to automatically control the amplitude of the bipolar digital serrodyne phase modulation, and thus to suppress the backscattering induced degradation, was developed using the digital gain control function of the function generator with a field programmable gated array (FPGA) based digital signal processor. However, the suppression level was not satisfying. To improve the performance, a scheme employing a gain variable amplifier and the oversampling technique is newly incorporated into the R-FOG. Additionally, a lock-in detection scheme with 90° out-of-phase reference signal is proposed to generate an error signal for the control. With the proposed controlling methods for the bipolar digital scheme, improved bias stability is successfully demonstrated in the experiment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fiber optics sensors / Sagnac effect / backscattering |
| Paper # | OFT2011-29 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2011/8/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance Improvement of the Resonator Fiber Optic Gyro by Precisely Controlling the Bipolar Digital Serrodyne Scheme |
| Sub Title (in English) | |
| Keyword(1) | Fiber optics sensors |
| Keyword(2) | Sagnac effect |
| Keyword(3) | backscattering |
| 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 | 2011-08-26 |
| Paper # | OFT2011-29 |
| Volume (vol) | vol.111 |
| Number (no) | 182 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |