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| 全国天文大地网与空间大地网联合平差 | |
| 引用本文： | 魏子卿,黄维彬,杨捷中,杨德庚,汪舟平,陶文中.全国天文大地网与空间大地网联合平差[J].测绘学报,2000,29(4):283-288. |
| 作者姓名： | 魏子卿 黄维彬 杨捷中 杨德庚 汪舟平 陶文中 |
| 作者单位： | 1. 西安测绘研究所，陕西西安 710054 2. 解放军信息工程大学测绘学院，河南郑州 450052 3. 西安测绘信息技术总站，陕西西安 710054 |
| 摘 要： | 天文大地网与空间大地网联合平差，对于检核、控制与加强天文大地网以及建立与扩展地心坐标系，都具有重要意义，全国天文大地网与全国ＧＰＳ大地网联合平差（Ｉ期）于１９９８年初完成，本文报告平差采用的原则和模型，并提出平差结果，通过联合平差，消除了天文大地网尺度的系统偏差，减弱了它的局部变形，改善了它的整体精度，更重要的是建立了由近５万个大地点坐标体现的地心参考系，其地心坐标的水平分量精度好于０．５ｍ。 |
| 关 键 词： | 天文大地网 空间大地网 GPS大地网 联合平差 |
| 文章编号： | 1001-1595(2000)04-283-06 |
Combined Adjustment of Nationwide Astro-geodetic and Space-geodetic Networks |
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| WEI Zi-qing,HUANG Wei-bin,Yang Jie-zhong,Yang De-geng,WANG Zhou-Ping,Tao Wen-zhong.Combined Adjustment of Nationwide Astro-geodetic and Space-geodetic Networks[J].Acta Geodaetica et Cartographica Sinica,2000,29(4):283-288. | |
| Authors: | WEI Zi-qing HUANG Wei-bin Yang Jie-zhong Yang De-geng WANG Zhou-Ping Tao Wen-zhong |
| Institution: | Wei Zi qing 1,Huang Wei bin 2,Yang Jie zhong 3,Yang De geng 1,Wang Zhou ping 3,Tao Wen zhong 3 |
| Abstract: | The combined adjustment of astro geodetic and space geodetic networks is of great significance for checking, controlling and strengthening the astro geodetic network, and for establishing and extending the geocentric coordinate system. A combined adjustment(phase I) of the nationwide astro geodetic and GPS geodetic networks was accomplished early in 1998. The paper reports the principles adopted and the models used in the adjustment and presents results. As a result of adjustment, the systematic scale deviation of the astro geodetic network has been removed, its local distortion mitigated and its integral precision improved. And more importantly a geocentric geodetic reference system as materialized by the coordinates of nearly 50 000 geodetic points has been set up with better than one half meter accuracy for horizontal components. |
| Keywords: | astro geodetic network space geodetic network GPS geodetic Network combined adjustment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |