大地测量与地球动力学2011，Vol.31Issue(4)：112-115,4.
不完全测量数据的EM处理算法
EM PROCESSING ALGORITHM OF INCOMPLETE SURVEYING DATA
摘要
Abstract
For the incomplete surveying data caused by various factors, traditional adjustment can not be a-chieved. It is harmful to the accuracy of the surveying, even leads to abandoned observation data. Through EM algorithm , we can take the potential information which is helpful to improve the accuracy of data processing effectively. EM processing algorithm for incomplete surveying data is proved. The results show that the surveying accuracy is improved by using the EM algorithm to process the incomplete data. The results are extremely similar to the adjustment results with complete data and significantly better than the results without adjustment.关键词
不完全测量数据/平差/G-M模型/最小二乘原理/EM算法Key words
incomplete surveying data/ adjustment/ G - M model/ principle of least squares/ EM algorithm分类
天文与地球科学引用本文复制引用
林东方,宋迎春,金昊..不完全测量数据的EM处理算法[J].大地测量与地球动力学,2011,31(4):112-115,4.基金项目
国家自然科学基金(40874005) （40874005）
教育部博士点基金(200805331086) （200805331086）
