| 重力基点网平差中的间接平差 |
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| 引用本文： | 贾帅,吴燕冈,肖锋,李慧.重力基点网平差中的间接平差[J].世界地质,2018,37(4):1221-1225. |
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| 作者姓名： | 贾帅 吴燕冈 肖锋 李慧 |
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| 作者单位： | 吉林大学地球探测科学与技术学院, 长春 130026 |
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| 摘 要： | 笔者将间接平差方法引入重力基点网平差中。将基点网中各个基点的重力平差值设为与其近似值有关的函数;利用最小二乘准则约束参数函数,建立误差方程;求出平差值。计算结果显示,传统条件平差以及间接平差方法的平差结果相同,但是间接平差的计算过程更有规律性,便于编程计算,适用于由多基点、多边段组成的复杂基点网。
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| 关 键 词： | 重力基点网 平差 最小二乘 间接平差 |
| 收稿时间： | 2018-01-24 |
| 修稿时间： | 2018-08-03 |
Indirect adjustment in adjustment of gravity base network |
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| JIA Shuai,WU Yan-gang,XIAO Feng,LI Hui.Indirect adjustment in adjustment of gravity base network[J].World Geology,2018,37(4):1221-1225. |
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| Authors: | JIA Shuai WU Yan-gang XIAO Feng LI Hui |
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| Institution: | College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China |
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| Abstract: | The authors introduce the indirect adjustment method into the adjustment of gravity base network. The gravity adjustment value of each base point in the base adjustment network is set as a function related to its approximation. Moreover, the least square criterion is used to constrain the parametric function to establish the error equation and calculate the adjustment value. The calculation results show that the adjustment results of traditional adjustment method and indirect adjustment method are identical but the calculation of indirect adjustment is more regular and is easy to program and calculate, which is suitable for the complicated gravity network consisting of multiple base points and multiple segments. |
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| Keywords: | gravity base network gravity adjustment least squares indirect adjustment |
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