摘要
针对光纤陀螺信号漂移误差和噪声的影响及陀螺稳定平台系统的特点,研究了滑动滤波、FLP自适应滤波、小波变换阈值滤波3种直接对陀螺输出信号进行数字滤波处理的方案。最后对某陀螺惯性稳定跟踪转台中使用的光纤陀螺信号的测试和统计分析结果表明,采用小波变换阈值滤波可有选择地对陀螺信号的噪声成分进行抑制,其滤波去噪效果明显。
The properties of the fiber optic gyro （FOG） random drift and noise error were analyzed. According to the characteristics of the gyro stabilization platform system, the moving filter, the forward linear prediction （FLP） adaptive filter and the threshold-value filter based on wavelet transform were used to de-noise the signal. The result of testing and statistic analyzing for FOG signal indicated that the wavelet threshold-value filter was successful in restraining signal noise and the effects of it was verified.
出处
《压电与声光》
CSCD
北大核心
2009年第2期178-181,185,共5页
Piezoelectrics & Acoustooptics
基金
江苏大学校基金资助项目(No.07JDG071)
