Geomagnetic Matching Technology Based on Iterative Contour Matching Algorithm

摘要：

Geomagnetic matching aided Inertial Navigation System (INS) is a new method in navigation technology. In this paper, the Contour Matching (CM) algorithm is studied. In the Contour Matching algorithm, the matching path is a translation of INS indicated path, so this algorithm is sensitive to the velocity and yaw errors. In order to overcome the insufficiency of the CM, an improved Contour Matching algorithm called Iterative Contour Matching (ICM) algorithm is put forward. In this algorithm, matching algorithm of searching for matching point one by one is used to correct the INS cumulative errors. The INS indicated path is updated gradually and this is an iterative process. The matching precision and the robustness of the algorithm are analyzed by simulation. This algorithm is proved to be robust. The results show that ICM can correct the velocity and yaws error in a way and the matching errors of the algorithm can be controlled in one gridding (100 m).

关键词： geomagnetism aided navigation iterative contour matching contour matching.

作者: Liu Wei Wu Zhitian Wu Meiping Hu Xiaoping

作者单位: Department of Automatic Control,College of Mechatronics and Automation,National University of Defense Technology,Changsha,Hunan,China

会议类型: 国际会议

会议名称: 2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)

会议地点: 成都

会议语种:英文

页码: 1442-1445

在线出版日期: 2011-08-16（万方平台首次上网日期，不代表论文的发表时间）