Parameter Method Data Processing for CPⅢ Precise Trigonometric Leveling Network

作者：Jianzhang LI,Haowen YAN

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.

发文机构：Faculty of Geomatics Gansu Provincial Engineering Laboratory for National Geographic State Monitoring

关键词：CPⅢlevelingcontrolnetworkprecisetrigonometriclevelingparametermethodminimumnormquadraticunbiasedestimate

分类号： TP3[自动化与计算机技术—计算机科学与技术]