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A comparative research on quasi-level height surveying and subtend trigonometric leveling with total station
Author(s): 
Pages: 152-154
Year: Issue:  1
Journal: SCIENCE OF SURVEYING AND MAPPING

Keyword:  对向观测法似水准法精度比较分析;
Abstract: 通过对似水准法和对向法高程测量原理、误差来源及精度的比较分析,我们发现随着距离和竖直角度的增大,对向法高程测量中误差的变化大于似水准法高程测量中误差的变化;当两观测点间的水平距离小于等于1km时,对向法高程测量精度一般高于似水准法高程测量精度,但是当两观测点间的水平距离大于1km时,似水准法高程测量精度一般高于对向法高程测量精度.
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