测绘科学技术学报Issue(3)：244-248,5.DOI:10.3969/j.issn.1673-6338.2014.03.006
常用稳健估计方法应用于水准网的相对增益比较
Compare the Relative Gain of Commonly Used Robust Estimation Methods for Leveling Networks Calculation
摘要
Abstract
Robust estimation methods are often used to eliminate or weaken the influences of gross errors on level-ing networks calculation. However, different robust estimation methods may have different capabilities in elimina-ting or weakening gross errors. Taking 3 leveling networks with different number of observations and unknowns as examples, the simulation experiments have been employed to compare the robustness of 13 frequently used robust estimation methods in this paper. The results indicate that no matter the independent elevation difference observa-tions have equal weights or unequal weights, the L1, Danish and German-McClure methods and IGGIII scheme are relatively more efficient among the 13 commonly used robust estimation methods. These four methods can efficiently eliminate or weaken the influences of gross errors on leveling networks calculation.关键词
水准网/稳健估计/仿真实验/稳健估计方法比较/相对增益Key words
leveling network/robust estimation/simulation experiment/comparison of robust estimation methods/relative gain分类
天文与地球科学引用本文复制引用
赵晓囡,姜佃高,贾宁宁,葛永慧..常用稳健估计方法应用于水准网的相对增益比较[J].测绘科学技术学报,2014,(3):244-248,5.基金项目
山西省自然科学基金项目(2012011015-2)。 （2012011015-2）
