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Compensation of scale factor nonlinearity in resonator fiber optic gyro

机译：谐振器光纤陀螺的比例因子非线性补偿

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摘要

Scale factor nonlinearity (SFN) and dynamic range (DR) are the two significant parameters used to evaluate the performance of a resonator fiber optic gyro (RFOG). The inherent SFN of an open-loop RFOG with triangular phase modulation is first analyzed theoretically, and its relationship with the DR is simulated, showing that the DR is significantly constrained by the SFN. For our system, when the SFN is 1%, the DR is less than ±82 deg /s. To decrease the SFN in a certain DR, a real-time compensation method based on a field-programmable gate array is proposed. The compensation model is set up and the compensation scheme is illustrated. With the proposed method, the SFN of the RFOG is decreased from 1.53% to 0.057% with a DR of ±100 deg /s.
机译：比例因子非线性（SFN）和动态范围（DR）是用于评估谐振器光纤陀螺（RFOG）性能的两个重要参数。首先从理论上分析了具有三角相位调制的开环RFOG的固有SFN，并模拟了它与DR的关系，表明DR被SFN显着约束。对于我们的系统，当SFN为1％时，DR小于±82 deg / s。为了降低特定DR中的SFN，提出了一种基于现场可编程门阵列的实时补偿方法。建立了补偿模型，并说明了补偿方案。使用提出的方法，RFOG的SFN从1.53％降低到0.057％，DR为±100度/秒。

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  • 来源
    《Optical engineering》 |2014年第12期|127108.1-127108.7|共7页
  • 作者

    Yinzhou Zhi; Lishuang Feng; Junjie Wang; Yichuang Tang;

  • 作者单位

    Beihang University, Science and Technology on Inertial Laboratory, Beijing 100191, China,Beihang University, Precision Opto-mechatronics Technology Key Laboratory of Education Ministry, Beijing 100191, China;

    Beihang University, Science and Technology on Inertial Laboratory, Beijing 100191, China,Beihang University, Precision Opto-mechatronics Technology Key Laboratory of Education Ministry, Beijing 100191, China;

    Beihang University, Science and Technology on Inertial Laboratory, Beijing 100191, China,Beihang University, Precision Opto-mechatronics Technology Key Laboratory of Education Ministry, Beijing 100191, China;

    Beihang University, Science and Technology on Inertial Laboratory, Beijing 100191, China,Beihang University, Precision Opto-mechatronics Technology Key Laboratory of Education Ministry, Beijing 100191, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    resonator fiber optic gyro; scale factor nonlinearity; dynamic range; compensation;

    机译：谐振器光纤陀螺仪比例因子非线性;动态范围;补偿金;

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