摘要
针对汾渭断陷带及邻近地区2011—2013年陆态网络工程36个GPS连续站和227个流动观测区域站的GAMIT/GLBOK处理结果中存在的非构造噪声,借助QOCA软件剔除连续站位移序列中的周期性成分和共模误差等非构造形变的信息,使地壳监测中GPS连续站水平运动速度的精度提高约0.3mm/a,垂直运动速度的精度提高了约0.6mm/a。针对流动观测区域站中的噪声,提出了使用QOCA软件对GPS连续站的后处理参数信息构建Delaunay三角网,结合反距离内插算法,实现了GPS区域站中非构造噪声的剔除,使GPS区域站流动监测中水平运动速度的精度提高了约0.6mm/a,垂直运动速度的精度提高约1.7mm/a,为地震监测提供了精确的基础数据。
For the question in the result that GAMIT/GLBOK process the data of 2011--2013 years from land State network project of 36 continuous operational GPS stations and 277 mobile observation stations, With the parameter information that GPS data post-processing software QOCA remove the continu- ous stations displacement in a series of recurring elements, common-mode error, and other non-construction deformation, horizontal movement speed accuracy is improved about 0.3 mm/a, and the vertical movement speed accuracy is improved about 0.6 mm/a. For the regional stations error, Proposed to use continuous GPS station QOCA software processing parameter information to constructe Delaunay Triangulation and combine with the inverse distance interpolation algorithm for GPS mobile observation stations of non-construction noise elimination, the GPS regional stations mobile monitoring horizontal movement speed accuracy was improved about 0.6 mm/a, and the vertical movement speed accuracy was improved about 1.7 mm/a, it provides accurate basic data for Fenwei fault zone earthquake monitoring.
出处
《测绘科学》
CSCD
北大核心
2016年第9期96-101,共6页
Science of Surveying and Mapping
基金
国家自然科学基金项目(41174083)
