利用抗差估计进行刚性板块异常台站探测及其运动参数求取  

DETECTION OF ABNORMAL STATIONS FOR RIGID PLATE AND ACQUISITION OF MOTION PARAMETERS BASED ON ROBUST ESTIMATION

作　　者：徐克科[1,2] 伍吉仓[1] 

机构地区：[1]同济大学测绘与地理信息学院,上海200092 [2]河南理工大学测绘与国土信息工程学院,焦作454000

出　　处：《大地测量与地球动力学》2014年第2期95-99,104,共6页Journal of Geodesy and Geodynamics

基　　金：国家973计划项目(2013CB733304);国家自然科学基金(41174024);河南省教育厅自然科学基金(12A420001);河南理工大学青年基金(Q2012-32A)

摘　　要：利用抗差估计,提出了一套适用于刚性板块异常台站自动探测和板块运动参数快速求取的方案。针对全球八大主要板块,准确探测了各板块异常台站的位置及大小,建立了基于ITRF2008的全球板块运动背景场及其运动模型。结果表明,异常台站剔除前抗差估计与剔除后最小二乘估计所求取的运动参数及精度相当;所建模型与其他学者研究模型相比,整体基本一致,精度有明显提高。By Euler＇s theory,the plate motion error model was established. According to robust estimation,a new method was proposed,which can both detect the abnormal stations automatically and acquire motion parameters quickly at the same time. For global 9 plates,the position and size of the abnormal stations was detected accurately and global plate motion model based on ITRF2008 was constructed successfully. The results show that the robust estimation before removing abnormal stations are as good as the least squares after removing the abnormal stations.Comparing with the models that other scholars researth,it＇s consistant as a whole and higher obviously at accuracy.

关 键 词：抗差估计 台站 板块运动模型 IGG3 ITRF2008 

分 类 号：P207[天文地球—测绘科学与技术]