ADS40线阵影像空中三角测量数据处理与精度分析方法  

The Data Processing and Accuracy Analysis Method of Aerial Triangulation for ADS40 Linear Array Images

作　　者：耿迅 徐水平 龚志辉[2] 袁军 

机构地区：[1]西安测绘信息技术总站,西安市西影路36号710054 [2]信息工程大学测绘学院,郑州市陇海中路66号450052

出　　处：《武汉大学学报（信息科学版）》2011年第7期776-779,共4页Geomatics and Information Science of Wuhan University

摘　　要：讨论了线阵影像空三数据处理中的自动连接点匹配、粗差剔除、方差分量估计、GPS/IMU观测值权值设置、坐标转换等问题,归纳了ADS40空三精度分析方法及相应技术指标。通过实际生产项目对机载线阵影像的空三精度进行了分析,获得了满意的空三精度。Aerial triangulation is the core process in aerial photogrammetry which determines the accuracy of 4D products.The data processing procedure and accuracy analysis method of aerial triangulation for ADS40 linear array images are different from that of frame images.The basic principle of aerial triangulation for three line scanner images is introduced firstly.The automatic tie point matching,blunder detection,variance component estimation,datum transformation and the weight of GPS/IMU observations in the combined adjustment are discussed.The accuracy analysis method of aerial triangulation for ADS40 linear array images is concluded.Experimental results show that using the data processing method concluded in this paper we acquired a satisfactory result.

关 键 词：三线阵传感器 ADS40 空中三角测量 精度分析 

分 类 号：P231.4[天文地球—摄影测量与遥感] P237.3[天文地球—测绘科学与技术]