视距非对称式水准测量方法及应用研究  

Application and Method of Stadia Asymmetrical-like Leveling

作　　者：黄声享[1] 叶晓明[1] 沈凤娇[1] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079

出　　处：《武汉大学学报（信息科学版）》2010年第7期798-800,815,共4页Geomatics and Information Science of Wuhan University

基　　金：国家科技支撑计划资助项目(2006BAG04B03);湖南省科技计划资助项目(2009FJ3217)

摘　　要：传统水准测量作业对前后视距差和前后视距累积差有严格要求。基于电子水准仪测量实际,提出了将水准仪的i角误差视为未知量参与水准网平差,以获得等同甚至优于视距对称条件下的水准测量精度,实现水准测量外业的简便性和高效性。具体阐述了该方法的基本原理,并结合实验进行了验证。Other than the traditional stereotype of rigid symmetry should be observed between the back and fore sight range of optical simulation leveling,the method introduced in this paper takes the level＇s i-angle error as an unknown variable involving in the process of adjustment.This sees no less precision of measurement or even a better one,and makes the leveling much easier and more efficient.This paper demonstrates the effectiveness of such method form the angle of physical mechanism,mathematical deduction and practical tests.

关 键 词：水准测量 视距非对称 电子水准仪 I角误差 

分 类 号：P224.1[天文地球—大地测量学与测量工程]