摘要
为了减少干涉型光纤陀螺(IFOG)的误差并提高其精度,需要首先对陀螺仪进行性能评估,了解内部影响其性能的各种误差源。Allan方差分析是一种评估IFOG性能的有效方法,能对陀螺的各种误差源进行辨识。分析了目前国内常用的光纤陀螺性能评价方法,对Allan方差法在光纤陀螺的性能分析中的原理与作用进行了深入研究,并且提出了基于Allan方差法的FCST(fastclustersamplingtechnique)快速算法。最后,通过对实际干涉型光纤陀螺的采样数据进行了不同分析方法的性能评价,得出了令人满意的结论。
In order to reduce errors in interferometric fiber optic gyroscopes(IFOG) to improve its performance,evaluation should be the first step,which can find out some error sources.Allan variance analysis is an effective method to evaluate IFOG's performance,and can identify all kinds of error sources in it.Some methods are introduced which used to estimate the IFOG,and Allan variance method is deeply researched on,including it's principle and it's function.And also a new method named FCST(fast cluster sampling technique) has been presented which based on Allan variance method.At last,some methods used to evaluate the performance of IFOG are analyzed through collecting its real time data,and a satisfied conclusion is got.
出处
《传感器技术》
CSCD
北大核心
2004年第9期31-34,共4页
Journal of Transducer Technology
关键词
干涉型光纤陀螺
性能评价
Allan方差法
IFOG(interferometric fiber optic gyroscope)
performance evaluation
Allan variance
