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在分析光纤陀螺噪声特性的基础上,研究了减少光纤陀螺信号随机漂移的方法,采用解相关变步长LMS算法,对光纤陀螺信号进行滤波,并同LMS滤波算法进行了比较,这种算法具有更快的收敛速度。实验结果表明,解相关变步长LMS算法对于抑制光纤陀螺中的随机漂移、提高信噪比具有良好的效果。
Based on the analysis of the noise characteristics of fiber optic gyroscope, the method of reducing the random drift of fiber optic gyroscope is studied. The LMS algorithm is used to filter the signal of fiber optic gyroscope. The algorithm is compared with LMS algorithm. Faster convergence rate. The experimental results show that the LMS algorithm with variable-step-by-step decorrelation has a good effect on suppressing random drift and improving signal-to-noise ratio in fiber optic gyro.