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| 引用本文： | 赵一晗,伍吉仓,王伟.????????????????????[J].大地测量与地球动力学,2007,27(2):89-93. |
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| 作者姓名： | 赵一晗 伍吉仓 王伟 |
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| 作者单位： | 1. 同济大学测量与国土信息工程系,上海,200092
2. 同济大学测量与国土信息工程系,上海,200092;现代工程测量国家测绘局重点实验室,上海,200092 |
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| 基金项目： | 国家自然科学基金(40674004) |
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| 摘 要： | ???????????????????????????????????????????????????????????????λ?????????????θ????????????????????????????ο??????????????????????????????????????????????????????????????????б???????????????????????????????????????????????????????????????????????????????????????????????????
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| 关 键 词： | ?????? ??? ????? ???????? ?????? |
| 文章编号： | 1671-5942(2007)02-0089-05 |
| 修稿时间： | 2006年9月25日 |
DISCUSSION ON RELATION BETWEEN DATUM CONDITION AND COORDINATE SYSTEM |
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| Zhao Yihan,Wu Jicang,Wang Wei.DISCUSSION ON RELATION BETWEEN DATUM CONDITION AND COORDINATE SYSTEM[J].Journal of Geodesy and Geodynamics,2007,27(2):89-93. |
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| Authors: | Zhao Yihan Wu Jicang Wang Wei |
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| Institution: | 1)Department of Surveying and Geoinformatics,Tongji University,Shanghai 2000922)Key Laboratory of Advance Engineering Survey of SBSM,Shanghai 200092 |
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| Abstract: | Because the free net adjustment model is rank-defect,the normal equation derived with the LS method has an infinite number of solutions.Geodetically,the configuration of geodetic network can not be fixed.In order to obtain a unique configuration of geodetic network,some datum conditions should be introduced into.In other words,coordinate system will be determined if datum is given.Therefore datum must involve some information for defining coordinate system.Three kinds of datum conditions and a general solution in free geodetic network adjustment are presented here,and a formula about the relation between datum condition and coordinate system is test through an example. |
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| Keywords: | free network datum condition coordinate system inner adjustment constraint matrix normal equation |
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