船台测量场中公共点的粗差判别方法

针对船台公共点含粗差时对测量场整体精度的影响，提出了一种稳健的公共点粗差判别方法。该方法先通过莱以特准则初步筛选得到可疑点，再以罗曼诺夫斯基准则对可疑点进行判别，确定异常点并剔除，最后采用SVD算法计算转站参数。通过仿真试验进行验证，结果表明，该方法能准确地剔除异常点，得到可靠的转站参数估值，从而提高测量场整体精度。

The Gross Error Discrimination Method of ERS Point in Slipway Measurement Field

In view of the influence of the gross error of the ERS point on the accuracy of the measurement field , this paper presents a robust method for judging the gross error of ERS point .In this method , the suspicious points are obtained by the initial screening of the Lai criteria, and then the faulty points are discriminated by the Romanovsky criterion , the anomaly points are determined and removed , and finally the SVD algorithm is used to calculate the station parameters .The results show that the method can accurately eliminate and improve the overall accuracy of the measurement field .