摘要
EDM三角高程测量是目前工程控制测量中常用的一种方法。随着高精度测距仪的普及,用EDM三角高程测量代替水准测量建立平面控制和高程控制相结合的控制网,可以大大加快野外测量的速度,同时分析其误差对观测结果的影响,并采用适当的观测方法可以提高观测数据的精度。
The electrical distance measuring is a typic method in current engineering control measuring. With the popularization of distance measuring instruments with high accuracy, the control network being built by EDM （electrical distance measuring） instead of leveling can speed up the pace of field measurement. In addition, analysis on error of EDM and proper methods given for it can improve the accuracy of observation data.
出处
《交通标准化》
2006年第9期93-95,共3页
Communications Standardization
关键词
三角高程测量
误差传播
精度评定
EDM（electrical distance measuring）
spread of error
accuracy assesses
