ICESAT/GLAS LASER FOOTPRINT GEOLOCATION AND ERROR ANALYSIS
ICESAT/GLAS激光脚点定位及误差分析

The principle of the laser footprint geolocation by GLAS is expounded,the algorithm and the flow of data processing are presented. Error source of laser altimeter is analyzed and the magnitudes of every error of different GLAS products and the standard error(about 13 cm) are summarized.