基于滑动平均的速率偏频激光陀螺静态角速率测量算法

Algorithm of Measuring Rate Biased Laser Gyro Static Angle Rate Based on Moving Average

提高速率偏频激光陀螺静态角速率测量精度在其应用领域具有重要的作用。通过对速率偏频激光陀螺随机漂移数据进行分析处理,发现量化噪声对陀螺精度有较大的影响,进而提出了一种基于滑动平均的速率偏频激光陀螺静态角速率测量算法,并进行了理论分析及数值模拟。结果表明,通过合理的选择分组参数,该算法可以有效地降低量化噪声对速率偏频激光陀螺静态角速率测量精度的影响。实验结果也验证了该算法的有效性,可以应用于其它类似需要降低量化噪声的场合。

Improving measuring accuracy of rate biased laser gyro angle rate is important to its application field. The quantization error is found important influence to laser by analyzing random drift of rate biased laser gyro, then a new static angle rate algorithm based on moving average theory is presented, which is also analyzed and simulated. The results shows that with properly grouping parameter selection, the influence of quantization error on rate biased laser gyro angle rate is reduced prominently, and the validity of the algorithm is also proved experimentally. The algorithm can be used in other situation, in which quantization reduction is significant.