LANDSAT-5 TM Data Radiometric Correction and Geospatial Positioning Accuracy
LANDSAT-5 TM数据的辐射校正与几何定位精度

Radiometric correction and geospatial correction ,which are two key steps for quantitative remote sensing information,are crucial to reveal the target and background character and the actual geographical position.In this paper,a method of radiometric correction and the geospatial positioning accuracy of Landsat-5 TM data processed with precise ephemeris parameters is introduced.Test with the Landsat-5 TM data verified that the method used in China Remote Sensing Satellite Ground Station is effective to eliminate the system errors produced during the imaging process.