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

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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ft Study on the Dither Random Noise for Improving the Bias Stability of Ring Laser Gyroscope

링레이저 자이로의 바이어스 안정도 개선을 위한 몸체진동 잡음 연구

  • 심규민 (국방과학연구소 기술연구본부) ;
  • 김천중 (국방과학연구소 기술연구본부)
  • Published : 2006.11.01
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Abstract

In this paper we confirm the relation between the phases and phase errors of the beat signal at the lock-in region of the amplitude modulation type ring laser gyroscope by numerical calculation. Based on this facts, we, numerically, study the envelopes and magnitudes of the dither noise for statistically summing out the beat signal phase error, and we, experimently, confirm these numerical results. As a result, we find that the dither noise requires the increase gradient and the decrease gradient of the dither amplitudes, and those gradients should be combined with white noise. The magnitude of the dither noise which is satisfied with these requirements should be more than 5 percents of the average dither amplitude.

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References

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