摘要
针对地磁匹配依赖惯性系统信息的现状,提出了仅利用磁测计和里程计的低成本地磁场定位方法.为解决搜索空间过大的问题,以遗传算法在匹配区域搜索可能的航迹.遗传算法用相关性度量作为适应度函数,并以定向而非随机方式实现变异.仿真结果显示,在仅提供地磁场测量信息与测点间距的条件下,该方法能够以较小误差有效实现任意形状航迹的匹配.
The existing geomagnetic matching technique demands information from the inertial navigation system（INS）.In order to reduce the cost of the navigation system,a novel matching method with both the magnetometer and milemeter is presented.To search the path in the huge space,the genetic algorithm is employed.Correlation measure is used as the fitness function and the random variation is superseded by oriented variation.Simulation results show that this approach can be used for effective matching in different forms of path with enough positioning accuracy.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2013年第1期118-122,188,共6页
Journal of Xidian University
基金
国家自然科学基金青年基金资助项目(60904083)
关键词
地磁匹配
遗传算法
相关性度量
定向变异
搜索策略
geomagnetic matching navigation
genetic algorithms
correlation methods
oriented variation
search strategy
