基于DSP的数字闭环光纤陀螺信号处理方法研究

Research on Signal Processing of Digital Closed Loop IFOG Based on DSP

采用高集成度芯片是光纤陀螺降低成本,实现小型化的重要手段。本文着重对全数字闭环光纤陀螺的信号处理方法进行了详细分析,研究了 A/D 和 D/A 转换器对陀螺精度的影响,证明了通过数字滤波方法提高光纤陀螺精度的可行性,并提出了消除复位噪声的有效方法。最后给出了其 DSP 实现方案。

Introducing High—integration—chip was an important way to miniaturization and low—cost for IFOG.This paper focuses on the method of signal processing of All—digital closed IFOG,and gives a detailed analysis.It studies the influence of A/D and D/A on the measuring precison of IFOG,and proves the feasibility of the method of digital filtering for improving the measuring precision of IFOG,and introducing a effective way to eliminate the noise appear when restarts at.Lastly,it gives the implement way with DSP.