多尺度融合估计算法及其在导航系统中的应用  

A Multi-scale Fusion Estimation Algorithm and its Application in Navigation System

作　　者：司长哲[1] 任松[1] 

机构地区：[1]西昌卫星发射中心,四川西昌615000

出　　处：《电讯技术》2007年第6期109-115,共7页Telecommunication Engineering

摘　　要：针对如何将多传感器的数据进行融合处理、提高数据处理的可靠性和处理精度的现实问题,提出一种多尺度融合估计算法,对多传感器的数据进行估计处理。该算法首先建立系统的动态方程和观测方程,然后利用小波变换将数据在不同尺度上进行融合处理,归纳出该算法的实现步骤。最后通过在SINS/GPS组合导航系统中的实际应用,进一步证明了该算法能够有效地提高多传感器数据的处理精度。在实际应用时,结合应用环境设置适当的尺度,可以达到较好的应用效果。According to the actuality of data fusion processing of multi - sensor in order to improve the reliability and precision of data processing, data multi - scale fusion estimation algorithm is put forward for estimating the data of multi - sensor. The algorithm firstly establishes the system dynamic equation and observation equation, then the data is processed on different scales by wavelet transform, and realization steps of the algorithm are concluded. Finally, by the application in SINS/GPS integrated navigation system, the result testifies the algorithm can improve the precision of multi -sensor＇s data processing. In engineering application, if the scale is set up properly combining application circumstances, the preferable application result can be achieved.

关 键 词：SINS/GPS组合导航系统 多尺度估计 数据融合 多传感器 KALMAN滤波 

分 类 号：TN96[电子电信—信号与信息处理]