数字闭环光纤陀螺中滤波器量化效应研究

Research on filter quantization effects in digital closed-loop fiber optic gyroscope

分析了光纤陀螺中滤波器的量化效应,提出减小滤波器截尾量化的积分补偿算法。该算法可以保证滤波器的有效精度在系统输出数据时无损失,有效地减小数据截断产生的量化误差,进而提高系统精度。通过实验验证了此算法的有效性。

Filter quantization effects were analyzed in fiber optic gyroscope, based on which the integral compensation algorithm was provided to decrease the truncated quantization error in filter. This algorithm was effective to make the filter precision high enough when data was computed out of the system. Experiments results show that the algorithm decreases the quantization error caused by filter truncation effects. And system precision is promoted obviously.