激光测距实时空地立体定位方法研究

A New Positioning Techniques in Imaging Mapping Objects Using GPS,INS and Laser Range Finder

针对目前存在的两种机载成像定位方法:有控制点和激光扫描测距方法进行了阐述,深入地分析与比较它们的特点以及适用范围。对于某些特殊的用途,将这两种方法的优点综合起来,采用 GPS、INS、激光扫描测距、红外成像仪,提出了无需控制点、高精度的图像目标实时定位方法,以及恢复数字高程模型(DEM),并做了近景的仿真验证,结果表明能够达到特定的要求。

This paper analyses the characteristics and the distinction of the two different 3D position methods: positioning using control points(at least six points)and using laser range finger.For some special cases,considering the merits of the two methods,integrates kinematic GPS,laser ranger finder,attitude measurement unit and optical- mechanical scanner into a rigid platform providing a high accurate 3D position without control points,and generating digital elevation model(DEM).In several experiments we have terrified the new method,and the results is satisfactory.