摘要
对于海上目标的遥感影像定位,由于控制点获取的困难性严重影响了其发展与应用。研究了SPOT5卫星HRS立体像对的成像原理,通过一系列坐标系变换,构建了一种无需地面控制点的直接对地绝对定位模型。试验表明,在没有控制点的条件下利用SPOT5遥感影像进行定位,平面定位精度和高程定位精度均可以达到优于70m的水平,这对于海上目标定位具有很好的实用价值。
Due to the dificult of earning Ground Control Points （ GCPs）, object positioning in sea using remote sensing image have been impacted. This paper studys on the imaging theory of SPOT5 satellite HRS stereo image. It educes a model which can be used to absolute positioning to ground without GCPs . The examination result show： When have no GCPs, the plane and the elevation positioning precision can not exceed 70 meter with SPOT5 images. This result has good application value to object positioning on the sea.
出处
《海洋测绘》
2008年第5期20-22,共3页
Hydrographic Surveying and Charting
关键词
遥感影像
海上目标
定位
SPOT5
remote sensing image
object on the sea
positioning
SPOT5
