CGCS2000框架维持方法分析
发布时间：2019-02-19 10:12
【摘要】：针对目前国内各GNSS应用在归算到2000国家大地坐标系(CGCS2000)时常采用强制符合及拟稳平差方法存在的问题及局限性,利用国家测绘地理信息局收集的全国近1 800个连续运行参考站(Continuously Operating Reference Stations,CORS)连续观测1个月的数据进行数据处理得到的基线解,分别基于强基准拟稳平差方式及顾及板块运动的速度场归算方法获得测站在CGCS2000下的坐标,分析两者的差异及误差分布情况,指出对于省级CORS站纳入CGCS2000的情况,采用强制符合拟稳平差方法所基于的基准站必须考虑板块的运动趋势进行CGCS2000归算,否则平差结果与CGCS2000最大差异将达到dm量级。
[Abstract]:In view of the problems and limitations of forced coincidence and quasi-stable adjustment methods which are often used in the national geodetic coordinate system (CGCS2000) to the 2000 national geodetic coordinate system (CGCS2000) in China at present, each GNSS application at present, Based on the data collected by the National Survey and Mapping Geographic Information Administration (Continuously Operating Reference Stations,CORS) of nearly 1,800 continuously operating reference stations throughout the country for one consecutive month, the baseline solution obtained by data processing is carried out. Based on the quasi-stable adjustment mode of strong datum and the velocity field reduction method taking into account plate motion, the coordinates of the station under CGCS2000 are obtained, and the difference and error distribution between them are analyzed. It is pointed out that the provincial CORS station is included in CGCS2000. The base station on which the forced coincidence quasi-stable adjustment method is based must consider the motion trend of the plate for CGCS2000 reduction, otherwise the maximum difference between the adjustment results and the CGCS2000 will reach the order of dm.
【作者单位】： 中国测绘科学研究院;
【基金】：国家重点研发项目(2016YFB0501405) 国家自然科学基金(41374014) 国家863计划(2013AA122501) 中国测绘科研研究院基本科研业务费(7771503)~~
【分类号】：P228.4;P207
本文编号：2426408
[Abstract]:In view of the problems and limitations of forced coincidence and quasi-stable adjustment methods which are often used in the national geodetic coordinate system (CGCS2000) to the 2000 national geodetic coordinate system (CGCS2000) in China at present, each GNSS application at present, Based on the data collected by the National Survey and Mapping Geographic Information Administration (Continuously Operating Reference Stations,CORS) of nearly 1,800 continuously operating reference stations throughout the country for one consecutive month, the baseline solution obtained by data processing is carried out. Based on the quasi-stable adjustment mode of strong datum and the velocity field reduction method taking into account plate motion, the coordinates of the station under CGCS2000 are obtained, and the difference and error distribution between them are analyzed. It is pointed out that the provincial CORS station is included in CGCS2000. The base station on which the forced coincidence quasi-stable adjustment method is based must consider the motion trend of the plate for CGCS2000 reduction, otherwise the maximum difference between the adjustment results and the CGCS2000 will reach the order of dm.
【作者单位】： 中国测绘科学研究院;
【基金】：国家重点研发项目(2016YFB0501405) 国家自然科学基金(41374014) 国家863计划(2013AA122501) 中国测绘科研研究院基本科研业务费(7771503)~~
【分类号】：P228.4;P207
【相似文献】
相关期刊论文 前10条
1 王振方;李博峰;沈云中;;基于奇异值分解的拟稳平差法[J];测绘通报;2008年05期
2 梁丽芳;;拟稳平差在沉降观测数据处理中的应用[J];技术与市场;2013年08期
3 江志恒;刘乃苓;;重力网拟稳平差[J];测绘科技动态;1991年02期
4 马金凯;张文举;;拟稳平差的消去条件解法[J];山东矿业学院学报;1993年01期
5 文鸿雁;稳健估计法在拟稳平差中的应用[J];四川测绘;1995年03期
6 李新由;;动态拟稳平差的整体平差方案[J];地震学刊;1986年02期
7 王溪元;周江文等提出拟稳平差理论——可捕促地壳形变准确信息[J];测绘通报;1987年06期
8 江志恒,刘乃苓;附合重力网的拟稳平差[J];物探与化探;1991年06期
9 陶本藻;;第五讲 自由网拟稳平差[J];工程勘察;1983年03期
10 陶本藻;自由网拟稳平差的性质及应用[J];测绘学报;1982年03期
相关会议论文 前2条
1 范文;石琳珂;;京津文霸地区重力复测网的拟稳平差[A];1990年中国地球物理学会第六届学术年会论文集[C];1990年
2 欧吉坤;;略论有中国特色的测量误差理论[A];纪念中国测绘学会成立四十周年论文集[C];1999年
相关硕士学位论文 前1条
1 汪维;沉降监测网的拟稳平差与程序实现[D];安徽理工大学;2016年
，本文编号：2426408
本文链接：https://www.wllwen.com/kejilunwen/dizhicehuilunwen/2426408.html
