中点法三角高程测量精度分析  

The Accuracy Analysis of Midway Trigonometric Leveling

作　　者：孙玉国[1] 

机构地区：[1]中国建筑材料工业地质勘查中心黑龙江总队,黑龙江哈尔滨150040

出　　处：《测绘与空间地理信息》2013年第11期194-196,共3页Geomatics & Spatial Information Technology

摘　　要：中点法三角高程测量是高程测量的一种新方法,本文从三角高程基本原理出发,推导出该方法的计算公式,分析了误差来源,并利用误差传播理论对其测量精度进行了论证。以徕卡工程型全站仪TC802在高速公路高程控制测量中的应用实例,验证了这种方法在一定条件下可以取代三等水准测量。The Midway Trigonometric Leveling is a new method of height measurement. This paper deduces the calculating formula based on the basic principle of trigonometric leveling and analyses the sources of errors by the measurement accuracy. Meanwhile the precision of error propagation is demonstrated by using of error propagation. This method can replace the three - order leveling under certain conditions by monitoring examples from Leica total station TC802 in the highway elevation control measurements.

关 键 词：中点法 三角高程 误差 精度分析 

分 类 号：P224.2[天文地球—大地测量学与测量工程]