海洋重力场空间特征描述方法研究  

Research on Describe Method of Spatial Feature About Ocean Gravity Field

作　　者：陈晶[1] 闫利[2] 

机构地区：[1]海军装备研究院,北京100161 [2]武汉大学测绘学院,武汉430079

出　　处：《现代导航》2015年第5期396-399,共4页Modern Navigation

摘　　要：重力匹配辅助惯性导航中,需要通过分析重力基准图的特征而有效提取出重力场可匹配区域,以提高重力匹配导航系统的可用性和匹配速度。本文通过定义重力场特征指标的方法,定量表示重力场的空间特征,实现对重力场可匹配区域的提取。实验表明,该方法简单有效,具有实用价值。In the gravity matching aided inertial navigation system, in order to improve the availability and matching speed of system, suitable matching areas are needed to be picked up by the analysis of feature in gravity reference image. A way of selecting suitable gravity matching area is provided in this paper, which is extracting suitable gravity matching area by defining spatial feature of gravity field. It indicates that this method is simple and efficiency by experiment.

关 键 词：重力场 匹配定位技术 惯性导航系统 水下导航 

分 类 号：TN966[电子电信—信号与信息处理]