自适应横向滤波器在干涉式光纤陀螺中的应用

摘要

Presents the adaptive transverse filter proposed to improve the signal/noise ratio, and thereby the detection accuracy and the design of the adaptive transverse filter based upon the least mean square algorithm in accordance with the fibre optical gyro signal characteristics, and concludes from simulation results that better results can be obtained with this filter.%干涉式光纤陀螺(IFOG)的信号检测属于微弱信号检测，信噪比较低，而且在变化。基于这个特点，为了得到更好的检测精度，本文提出了自适应滤波方案。应用此方案可改善信噪比，提高信号检测精度。在分析光纤陀螺信号特点的基础之上，设计了基于最小均方算法(LMS)的自适应横向滤波器。经仿真研究证明应用此滤波器能获得较好的效果。