陀螺随机漂移率建模研究  

THE INVESTIGATION OF MODELING GYRO DRITT RATE

作　　者：吴澄 彭允详 

机构地区：[1]航天部第一研究院13所,北京100854

出　　处：《宇航学报》1993年第1期20-27,共8页Journal of Astronautics

摘　　要：本文介绍如何将MRWR法,即一类含有随机游动(random walk)和斜坡趋势项(ramp)的非平稳时间序列直接建模方法,用于陀螺随机漂移率建模。文中采用MRWR法对某二自由度动调陀螺的实验漂移数据进行了建模分析。结果表明:MRWR法能很好地直接建模含有随机游动和斜坡趋势项的非平稳随机漂移信号;统计分析证明MRWR法的建模精度优于一般采用的RELS法。This paper introduces the MRWR method presented by authors, namely the method of modeling nonstationary time seies with random walk and ramp directly, to modeling gyro drift rate. The actual drift rate data of a two-degree of freedom gyro is analyzed and modeled by the MRWR method in the paper. Statistics analysis shows that the MRWR method is in advance of RELS method used generally.

关 键 词：时间序列分析 陀螺漂移 随机模型 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]