| 附不等式约束平差的一种简单迭代算法 |
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| 引用本文： | 朱建军,谢建.附不等式约束平差的一种简单迭代算法[J].测绘学报,2011,40(2):209-211. |
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| 作者姓名： | 朱建军 谢建 |
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| 作者单位： | 1. 中南大学地球科学与信息物理学院信息物理工程学院;2. 中南大学信息物理工程学院; |
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| 基金项目： | 国家自然科学基金(40974007,40574003); 湖南省博士生科研创新项目(CX2010B048) |
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| 摘 要： | 基于最优化计算理论中罚函数方法及传统测量平差中零权和无限权的思想,提出一种有效的迭代算法,算法过程与经典平差计算方法相同.数值实验表明,该算法简单、可行,并且具有很快的收敛速度.作者还将该模型用在大坝变形分析中,根据地形对控制点建立不等式约束,能够探测到更真实的点位位移,较之无约束平差更合理可靠.
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| 关 键 词： | 不等式约束平差 有效约束 惩罚函数 虚拟观测 变形监测 |
| 收稿时间： | 2010-06-02 |
| 修稿时间： | 2010-09-27 |
A Simple Iterative Algorithm for Inequality Constrained Adjustment |
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| ZHU Jianjun,XIE Jian.A Simple Iterative Algorithm for Inequality Constrained Adjustment[J].Acta Geodaetica et Cartographica Sinica,2011,40(2):209-211. |
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| Authors: | ZHU Jianjun XIE Jian |
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| Institution: | ZHU Jianjun,XIE Jian Department of Geomatics of Engineering,Central South University,Changsha 410083,China |
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| Abstract: | A new effective iterative algorithm that is similar to classical adjustment is proposed based on penalty functions and zero or infinite weight.Numerical simulation shows that this algorithm is simple and feasible and has good convergence.Then it is applied to a dam deformation monitoring control net,the inequality constraints of control points are established according to the terrain and it can be detected that the real displacement of the control points and it is more reasonable and reliable than that of u... |
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| Keywords: | linear inequality constrained adjustment(LICA) active constraint penalty function virtual observation deformation monitoring |
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