Abstract:

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.

Key words: WADGPS, virtual network reference station, Hi-spatial resolution remote sensing image