摘要
随着光电测距技术使用的日益成熟,导线网和边角网已逐步取代传统的测角网成为桥梁控制网的主要形式。本文介绍了Hermert方差分量估计及其近似算法在桥梁控制网内业处理中的应用原理和方法,提高了桥梁控制网的点位精度。
With the developing of the technical of electro-optical distance measuring, traverse network and triangulateration network are replacing the traditional triangulation network to be the main type of the bridge control network. The applicable principle and method of the helmert type for estimating variance and its approximate calculation are introduced in the office data processing of bridge control network, which is helpful to raise the precision of the points.
出处
《江苏测绘》
2000年第2期24-26,共3页
Jiangsu Surveying and Mapping
关键词
方差分量估计
权
光电测距
桥梁控制网
the helmert type for estimating variance weight electro-optical distance measuring bridge control network traverse network
