摘要
为研究Spot5、IKONOS及Quickbird等高空间分辨率遥感图像进行森林资源规划设计及调查的方法与技术 ,需进行遥感图像与实地位置的精确配准。对这 3种遥感图像 ,地面控制点的精度应分别高于 2 5m、1m及0 5m ,传统借助地形图选择校正点的方法很难满足精度要求。本文以满足Quickbird遥感图像几何精校正的精度为依据 ,在分析林区GPS控制网建立目的、精度要求及布设方法的基础上 ,结合目前GPS技术的发展现状 ,通过实例试验 ,详细探讨了林区快速布测GPS控制网的方法。
To study the method and technology of forest resource survey according to Hi-spatial resolution remote sensing image such as Spot5、IKONOS、and Quickbird etc. The precision calibration is needed between remote sensing image and its real position. To these 3 kinds of remote sensing images, the precision of calibration point should be respectively prior to 2.5 m、1 m and 0.5 m. The traditional method of selecting calibration point from relief map can hardly meet the demand of precision. In this paper according to the precision demand for meeting Quickbird remote sensing image calibration, on the basis of analyzing the aim of establishing GPS control network in forest area, the precision demand and designing method, thinking of the present situation of GPS technology, through the trial of real example, the method of establishing GPS control network quickly in forest area is probed in detail.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2005年第1期19-24,共6页
Scientia Silvae Sinicae
基金
国家自然科学基金项目 (3 0 3 7115 9)资助。
