不完全测量数据的EM处理算法

摘要

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.%推导了EM算法用于不完全测量数据的实现方法.结果表明,应用EM算法处理不完全测量数据,改善了测量精度,与完全数据下的平差结果极其接近,明显优于不进行平差处理的结果.