机载三维激光成像系统雷达数据自动化航带调整方法研究.pdf

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机载三维激光成像系统雷达数据自动化
航带调整方法研究
殷国伟,张汉德
(北海航空支队,中国海监,国家海洋局,青岛 266033)
摘要:激光雷达点云数据的航带调整,类似于传统航空摄影测量中的航带拼接,其目的就是消除航带点云数
据中存在的系统误差,使航带之间相应的地物进行匹配,从而提高激光点云数据的平面以及高程精度。
本文讨论了一种基于最小二乘法的自动化航带调整方法,并使用现有的手动调整方法与自动化调整方法的
结果精度进行了对比,证明自动化调整方法不但能够大大提高设备检校工作的效率,并且精度优于现有的手动调
整方法,完全满足后处理的要求。
关键词:三维激光成像系统;LIDAR;航带调整;最小二乘法
doi:.1000-
中图分类号文献标识码文章编号
:TP79 :A :1000-3177(2011)117-0090-05
A Study on Automatic Laser Strip Adjustment of Airborne Laser System
YIN Guo-wei,ZHANG Han-de
(Aerial Detachment of North China Sea,China Marine Surveillance,State Oceanic Administration,Qingdao 266033)
Abstract:Similar to the strip matching in the traditional aerial photogrammetry,the strip adjustment of laser point clouds is
to eliminate the systematic errors in the Airborne Laser System (ALS)and to match the same ground features in different laser
strips,so finally to improve the plane and height accuracy of the laser data.
Based on the least square matching,an automatic method of laser strip adjustment is studied in this pared with the man-
ual method of adjustment,which is available in practice,the automatic laser strip adjustment discussed here is proved to be not only
more efficient,but also more precise than the manual one,and totally meet the accuracy requirement of post processing.
Key words:Airborne Laser System (ALS);L