Application of Adaptive Divided Difference Filter on GPS/IMU Integrated Navigation System

作     者：ZHAO Pei-pei LI Shi-xin XIAO Zhi-tao 

作者机构：School of Information and Communication Engineering Tianjin Polytechnic UniversityTianjin 300160 CHN Tianjin Navigation Instruments Research Institute Tianjin 300131 CHN 

基　　金：Tianjin Key Technological Supported Project(08ZCKFGX04000) 

出 版 物：《Semiconductor Photonics and Technology》 (半导体光子学与技术（英文版）)

年 卷 期：2009年第15卷第3期

页      码：158-162,178页

摘      要：The efficient and accurate approximate nonlinear filters have been widely used in the estimation of states and parameters of dynamical systems. In this paper, an adaptive divided difference filter is designed for precise estimation of states and parameters of micromechanical gyro navigation system. Based on the investigation of nonlinear divided difference filter the adaptive divided difference filter(ADDF) was designed, which takes account of the incorrect time-varying noise statistics of dynamical systems and compensation of the nonlinearity effects neglected by linearization. And its performance is superior to that of DDF and extended Kalman filter(EKF). Simulation results indicate that the advantages of the proposed nonlinear filters make them attractive alternatives to the extended Kalman filter.

主 题 词：adaptive divided difference filter noise estimation 

学科分类：080902[080902] 0809[工学-计算机类] 08[工学] 080401[080401] 081105[081105] 0804[工学-材料学] 0825[工学-环境科学与工程类] 0811[工学-水利类] 

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