地磁异常匹配辅助导航的研究  

Study on geomagnetic anomaly matching aided navigation

作　　者：马彪[1] 王向磊[1] 

机构地区：[1]信息工程大学测绘学院,郑州450052

出　　处：《测绘科学》2012年第6期133-134,71,共3页Science of Surveying and Mapping

摘　　要：本文研究了地磁异常匹配辅助导航的基本原理,对其关键技术进行了分析,对系统建立了状态方程和观测方程,并给出了一个实例,利用EKF进行了数据融合处理,仿真结果表明地磁异常匹配辅助导航可以有效修正惯导的误差,大大降低了惯导的导航误差。The principle of geomagnetic anomaly matching navigation was presented in the paper, its key technologies were analyzed, system state equation and observe equation were built in the paper. Last, one application was presented, where data fusing was made using EKF. The simulation results indicated that geomagnetic anomaly matching aided navigation could revise INS error effectively, reduce navigation error greatly.

关 键 词：地磁异常 扩展卡尔曼滤波 数据融合 匹配导航 

分 类 号：P229.2[天文地球—大地测量学与测量工程]