Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Analysis of Deadzone Error by Electrical Cross-coupling on a Closed-loop Fiber Optic Gyroscope

폐루프 광섬유자이로스코프의 전기적 교차결합에 의한 불감응 영역 오차 분석

  • Chong, Kyoung Ho (Agency for Defense Development) ;
  • Chong, Kil To (School of Electronics Engineering, Advanced Electronics and Information Research Center, Chonbuk National University)
  • Received : 2013.12.06
  • Accepted : 2014.01.11
  • Published : 2014.04.01
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Abstract

Due to electrical cross-coupling between modulation voltage and photodetector output in a closed-loop fiber optic gyro, deadzone inevitably occurs. In this paper, deadzone error by cross-coupling effect was analyzed and the overcoming method was suggested. Simulation and measurement results show the main reason for deadzone is mainly related to electrical cross-coupling, and it can be effectively reduced by square-wave dithering method.

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References

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