CGCS2000框架維持方法分析
[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.
【作者單位】: 中國測繪科學(xué)研究院;
【基金】:國家重點(diǎn)研發(fā)項(xiàng)目(2016YFB0501405) 國家自然科學(xué)基金(41374014) 國家863計(jì)劃(2013AA122501) 中國測繪科研研究院基本科研業(yè)務(wù)費(fèi)(7771503)~~
【分類號】:P228.4;P207
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