地球重力场平差模型误差的控制

基金项目: 武汉大学地球空间环境与大地测量教育部重点实验室开放研究基金资助项目(020901);国家自然科学基金资助项目(40004001)

详细信息

Control of the Adjustment Model Errors for the Earth's Gravity Field

Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079

摘要: 针对模型误差,给出了函数模型优选的标准;提出了衡量模型误差大小的精确度指标及实用估计方法;给出了估计函数模型拟合精度的标准差公式。
- 地球重力场 /
- 模型误差 /
- 精确度 /
- 平差模型
Abstract: There exist inevitably model errors in the adjustment function models of the earth's gravity field,due to the various systematic errors.The quality of adjustment results in some extent depends on the errors of the function models.For this purpose,the errors of the function models have to be compensated or controlled to the greatest extent.The optimum seeking criteria of the adjusted function models are given in this paper.Then the criteria for judging the function model errors are presented,as well as their practical estimation methods.Furthermore,the formulae for evaluating the fitting standard deviation of the function models are given.
- Eearth's gravity field /
- model errors /
- accuracy /
- adjustment model