摘要
针对一种新的导航技术-地磁匹配技术进行了研究。在介绍了地磁匹配的基本原理和特点的基础上,分析了地磁匹配技术目前在地磁场模型、地磁传感器和匹配算法等方面已具备的基础和工程应用尚需解决的一些关键技术;重点研究了地磁匹配技术几种基本匹配算法-MAD法、MSD法、NPROD法和HD法,并对其利用MATLAB进行了对比仿真;最后对仿真结果进行了分析比较。仿真结果表明,综合考虑匹配精度、匹配运算量和匹配误差收敛性几个性能指标,选择几种匹配算法中的MAD法或MSD法作为地磁匹配算法较好。几种基本匹配算法的仿真分析,对地磁匹配技术下一步的深入研究具有一定的理论意义和工程应用价值。
A new method of navigation - magnetic field contour matching（MAGCOM） is investigated. Its principle and characteristics are briefly introduced and the basis on geomagnetic model, geomagnetic sensor and matching algorism and key techniques needed to be solved presently are analyzed. Several basic matching algorithms of MAGCOM such as MAD, MSD, NPROD, HD are mainly studied and simulated by MATLAB. Finally, the comparison of simulation results is carried out, which demonstrated that MAD or MSD is preferable algorism considering matching precision, computation cost and convergence. The simulation of several basic algorithms has theoretical and engineering meanings to the further studies of MAGCOM.
出处
《航天控制》
CSCD
北大核心
2008年第5期55-59,68,共6页
Aerospace Control
