摘要
通过对全站仪中间法三角高程测量原理进行分析,推导了中间法三角高程的误差传播公式,研究了测距误差、测角误差和大气折光系数误差对高差的精度影响。采用中间法三角高程测量方法在一个较小范围内进行了三角高程测量,779 m的水准路线测量闭合差为0.5 mm,并和精密二等水准成果进行了对比分析,试验结果验证了该方法可以替代高精度水准测量的可行性。
Based on the analysis of trigonometric leveling principle of total station using midway method,error propagation formula is derived for this method. On the basis of the formula,the elements including distance error,angle error and atmospheric refraction coefficient are studied to analyze the impact on the height difference errors.After that,a test is carried out in a smaller range using midway method of triangulated height. In addition,the route of the test is 779 m and the closing error is 0. 5 mm. A comparison of the test results with precision secondlevel outcomes is analyzed,the analysis verify the feasibility that the method can replace the high-precision leveling.
出处
《东华理工大学学报（自然科学版）》
CAS
2014年第3期303-306,共4页
Journal of East China University of Technology(Natural Science)
基金
国家自然科学基金项目(41304020
41204003
41161069)
江西省教育厅青年基金项目(GJJ12394)
东华理工大学博士科研启动基金项目(DHBK201114)
江西省数字国土重点实验室开放基金(DLLJ201307)
关键词
三角高程
中间法
精度
全站仪
triangulated height
midway method
precision
total station.
