DISCUSSION ON HEIGHT SYSTEMS IN STEREOSCOPIC MAPPING USING THE ZY-3 SATELLITE IMAGES
The ZY-3 is the civil high-resolution optical stereoscopic mapping satellite independently developed by China.It is mainly used for 1 : 50,000 scale topographic mapping.One of the distinguishing features of the ZY-3 is that the panchromatic triplet camera can obtain thousands apunisw2 of kilometers of continuous strip stereo data.The