利用最小二乘法评估海图点位精度  

Evaluating the precision of points in charts using least square

作　　者：于彩霞[1] 张立华[1] 许军[1] 靳军[1] 林海峰[2] 

机构地区：[1]海军大连舰艇学院海测工程系,辽宁大连116018 [2]海军出版社,天津300450

出　　处：《测绘科学》2009年第S1期82-84,共3页Science of Surveying and Mapping

基　　金：国家自然基金项目(40801189);国家863计划资助项目(2009AA12Z202);中国博士后科学基金资助项目(20080430547)

摘　　要：海图点位精度是否符合要求直接影响到该图的精度能否达标,进而影响到我国军事国防和国民经济的发展状况。为此,本文介绍了一海图点位精度评估模型——最小二乘法求解正形多项式,并且通过试验对其结果进行误差分析,从而验证了该模型具有较好的可靠性及实用价值。Whether the precision of points in charts is up to the mustard or not effects the precision of the chart straightly,and that effects the development of national defence and country economy.So,the evaluating model-positive polynomial done by least square is introduced in the paper firstly,then the results are got by testing one chart to analyze error,consequently the model is validated to be have the preferable security and practicality value.

关 键 词：海图 点位精度评估 正形多项式 最小二乘法 

分 类 号：P285[天文地球—地图制图学与地理信息工程]