RMSE的平方与平滑度的线性组合的平方根作为Vondrak滤波评价标准的探讨  

Investigation on the Square Root of the Linear Combination of the Squre of RMSE and Smoothness for the Vondrak Filter's Evaluation

作　　者：吴芸芸[1] 朱建军[1] 左廷英[1] 

机构地区：[1]中南大学地球科学与信息物理学院,长沙市麓山南路932号410083

出　　处：《武汉大学学报（信息科学版）》2012年第10期1212-1214,1220,共4页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目(40974007;10878026);湖南省教育厅基金资助项目(09K006)

摘　　要：对Vondrak滤波的准则函数进行了探讨,提出了一种新的评价标准,即用滤波值的均方根误差与平滑度的线性组合的平方根δ作为平滑因子质量好坏的评价标准。模拟算例证实了此评价标准的可行性。This paper studied the Vondrak filter and its criteria of functions.The thesis analyzed existing evaluation for the vondrak’s filter.The existing criteria for evaluation of Vondrak filter was cross correlation coefficient and root-mean-square error（RMSE）,which had some weak point in some place.A new criteria for evaluation was proposed that square root（δ） of the linear combination,which was the squre of root-mean-square error and the smoothness.The new criteria for evaluation was a quantitative index.The practicability and the advantage of the new criteria for evaluation has been demonstrated through simulated data.

关 键 词：VONDRAK滤波 平滑度 拟合度 评价标准 

分 类 号：P207[天文地球—测绘科学与技术]