基于VirtuoZo软件平台进行空三加密的误差分析

Error Analysis Based on VirtuoZo Software Platform for Air Three Encryption

空三加密就是通过地面控制点和加密点,利用区域网的平差解算,完成全测区的空中三角测量。空三加密是航空摄影测量内业部分的第一步,作为内业测图的基础,它是非常重要的一步,它决定了数字地图的质量和精度。所以,尽量减少空三加密误差是保证内业测图成果最有效的方法。本文简单介绍了以框幅式航飞影像为例进行空三加密的基本情况,以空三加密过程中误差为主要论述对象进行说明。

The air three encryption is through the ground control points and encryption points,the use of the regional network of the adjustment solution,to complete the entire survey area of aerial triangulation.Air three encryption is the first step in the industry of aerial photogrammetry,which is a very important step as the basis of the mapping.It determines the quality and accuracy of the digital map.So it is the most effective method to reduce the error of the air three.This paper briefly introduces the basic situation of the case of the frame type aerial image as an example,and the error is mainly discussed in the process of the space three encryption.