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目前,高精度光纤陀螺普遍采用掺铒光纤光源,对这种陀螺来说检测灵敏度受强度噪声限制。分析了强度噪声的特点及对陀螺的影响,并提出了一种软件实现的方法来抑制强度噪声,经验证随机游走减小了30%。
At present, the high-precision fiber optic gyroscope generally adopts erbium-doped fiber light source, and the detection sensitivity of the gyroscope is limited by the strength and noise. The characteristics of the intensity noise and its influence on the gyro are analyzed. A software implementation method is proposed to suppress the intensity noise. The random walk is reduced by 30%.