单边定向导线粗差的定位定值

本文根据平面几何原理推导了当导线仅含一个粗差时准确定位、定值该粗差的原则与计算公式和当导线含有两个粗差而我们又能确定其发生的位置时粗差的计算公式，采用ＴｒｕｅＢＡＳＩＣＶ２．０３版语言编制了计算程序。

粗差定位定值方法在EDM三角高程测量数据处理中的应用

本文将粗差定位定值方法应用于三角高程测量数据处理,并结合实例对其削减折光误差的可行性进行了探讨,取得了良好的效果。

三种粗差检测方法的比较及分析

通过对数据探测法、拟准检定法和多维粗差同时定位定值法进行比较研究,对算例进行数值分析,比较这三种方法的优缺点。

Positioning Precision Analysis of GNSS Multi-frequency Carrier Phase Combinations

GPS positioning precision is affected by various error sources, and traditional combinations of GPS carrier phase observations have their own limitations such as the wide-lane, the narrow-lane and the ionospheric-free combinations. To obtain the optimal positioning precision, a new linear combination method is addressed through the variance-covariance （VCV） of the GPS multi-frequency carrier phase combination equations, and the impact of the positioning precision is analyzed with the changing of the observation errors deduced by the law of error propagation. For the high precision positioning with only one carrier phase combination, the optimal combination method is deduced and further validated by an example of a baseline resolution with 60 km length. The result indicates that this method is the simplest, and the positioning precision is the best. Therefore, it is useful for long baseline quick positioning for different precision requirements in various distances.

对LEGE法性质的进一步讨论及其改进搜索方法

对ＬＥＧＥ法中的若干问题作了进一步的讨论，证明了Ｒε＝Ｖ是Ａε＝ｆ非退化的线性变换，基于Ｒε＝Ｖ对粗差进行定位定值等效于基于Ａε＝ｆ对粗差进行定位定值。此外，提出了一种粗差定位定值判断指标的改进搜索方法。