| 利用TGO进行灾区GPS控制网平差的一种有效方法 |
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| 引用本文： | 李冲,谭理.利用TGO进行灾区GPS控制网平差的一种有效方法[J].城市勘测,2010(6):93-95. |
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| 作者姓名： | 李冲 谭理 |
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| 作者单位： | 武汉大学测绘学院,湖北,武汉,430079;国家测绘产品质量监督检验测试中心,四川,成都,610041;国家测绘产品质量监督检验测试中心,四川,成都,610041 |
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| 摘 要： | 利用TGO软件进行GPS网基于参心坐标系的二维约束平差时,如果起算点距离测区较远,则常规的平差设置方法不能获得良好的结果,笔者通过大量的实践摸索发现,此时若同时固定任一网点的高度值,平差结果精度则显著提高,本文通过一具体算例介绍了该方法并探讨了其特点和可靠性。
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| 关 键 词： | TGO GPS网平差 起算点 平差精度 |
A Valid Method of Using TGO Adjusting Disaster Area GPS-net |
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| Li Chong,Tan Li.A Valid Method of Using TGO Adjusting Disaster Area GPS-net[J].Urban Geotechnical Investigation & Surveying,2010(6):93-95. |
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| Authors: | Li Chong Tan Li |
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| Affiliation: | 1.Surveying and Mapping College,Wuhan University,Wuhan 430079,China;2.National Quality Supervision and Testing Center of Surveying and Mapping Product,Chengdu 610041,China) |
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| Abstract: | If the known point is far away from the surveying area,general adjustment method will not get satisfying result,when using TGO to make tightened two-dimension adjustment based on reference coordinates.By a mass of practice and research,the author find that,if we tighten the height of a random net point at the same time,the precision of the result will promote markedly,the text has introduced this method by an example,its character and reliability has been discussed too. |
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| Keywords: | TGO Gps-net adjustment Precision Projection |
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