重庆邮电大学学报（自然科学版）2017，Vol.29Issue(4)：454-459,6.DOI:10.3979/j.issn.1673-825X.2017.04.005
EKF在新的导航系统中的仿真研究
Simulation study of EKF in new navigation system
摘要
Abstract
In view that GPS(global positioning system) is limited by the United States, which involves privacy and security issues, paper gives a new location system based on BDS(BeiDou navigation satellite system) and DTMB(digital television multimedia broadcasting), those make full use of the technology of China based on independent research and development, and eliminate the reliance on GPS positioning.In order to verify the feasibility of new navigation system, this paper further research on the EKF(extended Kalman filter) algorithm based on BDS and DTMB.Firstly, the present study gives the motion model of maneuvering target properties, and then estimates the optimal value by EKF, finally simulates verifies from three aspects: dynamic positioning tracking trajectory, locate the tracking error, and error cumulative distribution function.The results show that the tracking trajectory can be consistent to real trajectory.There is very little deviation, and errors of line-of-sight environment are less than non line-of-sight environment, the effect of line-of-sight environment is better.关键词
滤波算法/定位安全/运动模型/新的导航定位系统Key words
filtering algorithm/positioning security/motion model/new navigation system分类
信息技术与安全科学引用本文复制引用
付承彪,田安红,张桂明,张顺吉..EKF在新的导航系统中的仿真研究[J].重庆邮电大学学报（自然科学版）,2017,29(4):454-459,6.基金项目
云南省科技厅青年项目(2014FD048) （2014FD048）
云南省教育厅科学研究基金(2016ZDX127).The Youth Project Foundation of Science and Technology Department of Yunnan Province(2014FD048) （2016ZDX127）
The Nature Science Foundation of Yunnan Province Education Department(2016ZDX127) （2016ZDX127）
