POS/DG has much information of situation and posture, such as absolute position coordinates (x,y,z) and rotate elements. During airborne imaging, every line of hyperspectral image has its own POS/DG record.

• POS/DG数据含有高精度的位置和姿态信息，航空成像时高光谱图像的每一行都拥有自己的POS/DG记录。