中国大陆主要块体水平运动协方差函数确定方法研究  

METHODS FOR DETERMINING COVARIANCE FUNCTION OF CHINESE HORIZONTAL MOVEMENT OF MAINLAND

作　　者：柴洪洲[1,2] 崔岳[1] 翟天增[1] 明锋[1] 

机构地区：[1]解放军信息工程大学测绘学院,郑州450052 [2]天津海洋测绘研究所,天津300061

出　　处：《大地测量与地球动力学》2009年第4期74-78,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(40674014)

摘　　要：针对最小二乘配置中协方差函数的确定问题,顾及地壳运动的物理特征和空间属性,提出了引入地球物理模型计算值做中心化,同时分区、按方向确定协方差函数的新方法。利用实测数据,结合抗差估计,建立了更具代表性的中国大陆主要块体水平运动的协方差函数模型。采用该模型,计算结果具有更合理的解释性。For determining the covariance function in the collocation model for analyzing crustal deformation a new method considering the physical characters and spacial attribute of crustal movement is proposed, into which the calculated deformation value is introduced and centralized and the determination is made in different regions and different directions. Using the observed data and combining the robase estimation we have established the more representative covariance function model of the horizontal movement of the main blocks of China continent. By use of this model the calculated results can be interpreted more reasonably.

关 键 词：地壳运动 协方差函数 最小二乘配置 地球物理模型 抗差估计 

分 类 号：P228[天文地球—大地测量学与测量工程] P207[天文地球—测绘科学与技术]