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| 引用本文： | 张俊,独知行,杜宁,张显云.??????С???????λ?????????????[J].大地测量与地球动力学,2014,34(1):153-156. |
| 作者姓名： | 张俊 独知行 杜宁 张显云 |
| 作者单位： | 1）山东科技大学测绘科学与工程学院，青岛 266510 2）贵州大学矿业学院，贵阳 550025 |
| 基金项目： | 国家自然科学基金（41274006）；教育部博士点基金（20103718110003）;贵州省科技厅工业攻关项目(黔科合GY字（2011）3054号);.贵州省自然科学基金(黔科合J字（2009）2264号) |
| 摘 要： | ??в???????????????????????????????????????????С???????λ??????????????????????????????????????ù?????????????????а????????????????????У????y?t????????????????????????????????λ???????????λ????????? |
| 关 键 词： | ?в? ???????? ??????С???? ??λ????? ??????? |
| 收稿时间： | 2013-07-01 |
UNBIASED ESTIMATION FORMULA OF UNIT WEIGHT VARIANCE IN SOLUTION BY PENALIZED LEAST SQUARE |
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| Zhang Jun,Du Zhixing,Du Ning,Zhang Xianyun.UNBIASED ESTIMATION FORMULA OF UNIT WEIGHT VARIANCE IN SOLUTION BY PENALIZED LEAST SQUARE[J].Journal of Geodesy and Geodynamics,2014,34(1):153-156. | |
| Authors: | Zhang Jun Du Zhixing Du Ning Zhang Xianyun |
| Institution: | 1)Geomatics College, Shandong University of Science and Technology, Qingdao 266510 2)Mining College of Guizhou University, Guiyang 550025 |
| Abstract: | An unbiased estimation formula is derived from mathematic expectancy formula of residual matrix unit weight variance by penalized least square based on semi parametric model. Numerical test of 500 sample data indicates that the method is effective when there are system errors in the observations. |
| Keywords: | residuals semi-parametric model penalized least square unit weight variance unbiased estimate |
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