基于Delauany三角网与反距离内插实现GPS区域网中噪声剔除  

Noise Elimination Based on Delaunay Triangulation and Inverse Distance Interpolation in Regional Station of the GPS Regional Network

作　　者：纪海源 张伟佳[1] 梁磊[1] 何远梅 郝明[3] JI Haiyuan;ZHANG Weijia;LIANG Lei;HE Yuanmei;HAO Ming(Civil Engineering Institute,Shaanxi Polytechnic Instituete,Xianyang Shaanxi 712000,China;Shaanxi New Journey Surveying and Mapping Technology Company Limited,Xi'an Shaanxi 712000,China;First Geodetic Survey Team of the National Bureau of Surveying and Mapping Geographic Information,Xi'an Shaanxi 710054,China)

机构地区：[1]陕西工业职业技术学院土木工程学院,陕西咸阳712000 [2]陕西新旅程测绘科技有限公司,陕西西安712000 [3]中国地震局第二监测中心,陕西西安710054

出　　处：《北京测绘》2021年第5期565-569,共5页Beijing Surveying and Mapping

基　　金：国家自然科学基金(41174083)。

摘　　要：针对中国地壳运动监测陆态网络工程中区域站包含的随机漫步噪声、闪烁噪声和白噪声,利用(Quasi-Observation Combination Analysis,QOCA)软件剔除连续站位移序列中的周期性成分和共模误差得到的非构造形变信息特征,构建Delauany三角网,结合反距离内插算法,剔除了区域站位移序列中部分非构造噪声,提高了全球定位系统(Global Positioning System,GPS)流动观测区域站三维运动速度场的精度,为深入认识地块动力学机理提供了重要基础资料。For the random walk noise,flicker noise and white noise included in the land-based network project for the monitoring of Crustal movements in China,the QOCA software was applied to eliminate the non-structural deformation information features obtained by periodic elements and common-mode errors in the land-based displacement sequences of continuous stations,and the Deluany triangles was constructed.In addition,the anti-distance interpolation algorithm was exploredto eliminate some of the non-structural noise in the land-based displacement sequences of land-based stations,thus improving the accuracy of the 3D velocity field of GPS flow observation land-based stations,and providing important basic data for in-depth understanding of land mass dynamics.

关 键 词：Delauany三角网 反距离内插 区域站 非构造噪声 剔除 

分 类 号：P284[天文地球—地图制图学与地理信息工程]