基于Allan方差的半球谐振陀螺误差研究  

The Error Research of HRG Base on Allan Variance

作　　者：赵辉[1] 王丽莹[2] Zhao Hui Wang Liying

机构地区：[1]渤海大学工学院,辽宁锦州121013 [2]黑龙江八一农垦大学会计学院,黑龙江大庆163318

出　　处：《自动化与仪器仪表》2016年第11期110-111,114,共3页Automation & Instrumentation

基　　金：国家青年基金项目(61304053)

摘　　要：针对半球谐振陀螺的输出精度问题,提出利用Allan方差法建立精确的噪声模型,同时为了保证输出信号精度,提出采用FLP与IIR二级联合滤波方法对输出信号进行处理,仿真分析表明,这种滤波方法不仅可以有效地提高输出信号的精度,还可以保证更加准确地辨识出噪声参数。寻北实验结果则进一步说明了本文提出的滤波方法是有效的。Aiming at the output error of HRG,we propose an accurate noise model by Allan variance in this paper.in order to obtain high precision,an joint filtering method was proposed which formed by two parts mainly：the FLP and IIR.The analysis result of simulation shows that the joint filtering method not only improve the accuracy of signal effectively but also identify noise parameters accurately.Lastly,the result of north-finder experiment further illustrated the filtering method has more advantages than the IIR.

关 键 词：半球谐振陀螺 随机误差模型 联合滤波 误差分析 ALLAN方差 

分 类 号：TH86[机械工程—仪器科学与技术]