摘要
分析了船载重力仪输出中包含的厄特弗斯效应,提出了一种新的相关匹配算法,可最大程度地消除厄特弗斯效应对重力图匹配的影响,使重力辅助惯性导航系统获得很好的定位精度。仿真结果表明,该算法惯性／重力匹配组合导航系统在重力异常显著变化区域的定位精度在一个重力图网格左右。
The Eotvos effect of gravimeter onboard is analyzed, and a new correlative matching algorithm is proposed. The algorithm can decrease the influence of Eotvos effect on gravity map matching as large as impossible, and the localization precision of inertial /gravity matching integrated navigation system is about a grid on the gravity map on regions with notable gravity abnormity.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2006年第z3期2235-2236,共2页
Chinese Journal of Scientific Instrument
关键词
惯性导航
组合系统
相关方法
重力图
inertial navigation integrated system correlative method gravity map
