Parameter Method Data Processing for CPⅢPrecise Trigonometric Leveling Network

• 作者: Haowen YAN Jianzhang LI
• 来源期刊: 测绘学报（英文版）
• 年，卷（期）: 2020,（3）
• 页码范围: 67-75
• 页数: 9页
• 语种: 英文

摘要

In view of the limitation of the difference method, the adjustment model of CPⅢprecise trigonometric leveling control network based on the parameter method was proposed in the present paper. The experiment results show that this model has a simple algorithm and high data utilization, avoids the negative influences caused by the correlation among the data acquired from the difference method and its accuracy is improved compared with the difference method. In addition, the strict weight of CPⅢprecise trigonometric leveling control network was also discussed in this paper. The results demonstrate that the ranging error of trigonometric leveling can be neglected when the vertical angle is less than 3 degrees. The accuracy of CPⅢprecise trigonometric leveling control network has not changed significantly before and after strict weight.