| GPS网平差中异常观测的平差补偿方法 |
| |
| 作者单位： | 长安大学地测学院，信息工程大学测绘学院 陕西西安710054，61363部队，陕西西安710054，河南郑州450052，61363部队，陕西西安710054 |
| |
| 摘 要： | 首先分析了异常观测信息对参数结果的影响;然后以假设检验为手段通过残差向量构造粗差判别统计量,以一定的置信水平判定哪个观测值可能含有异常,有针对性地在相应的观测方程中引入新的平差参数。通过附加参数的平差补偿模型求出异常大小,从而控制异常数据对结果的影响。实测GPS算例表明,通过该方法能够有效地抵制参数先验信息异常的影响,并能解出异常误差的大小。
|
| 关 键 词： | 函数模型 GPS 粗差 假设检验 |
Adjustment Compensation for Outliers and Its Application in GPS Network Adjustment |
| |
| Authors: | ZENG An-min ZHANG Li-ping |
| |
| Institution: | ZENG An-min1,3,ZHANG Li-ping2,3 |
| |
| Abstract: | After analyzing the influence of the outliers on parameters in the GPS observations,we conducted an adjustment compensation method in detail,that is,the extra-parameters were added in the observation equation when the outliers in the GPS observations were found by means of the hypothesis testing based on the standardized residual.A GPS case was given to show that the compensation method could control efficiently the influence of the outliers in the GPS observations,and could calculate the outliers'value. |
| |
| Keywords: | functional model GPS outliers hypothesis testing |
| 本文献已被 CNKI 等数据库收录！ |
|
