Geometric Modification of Remotely Sensed Data Caused by Changes in Platform Altitude and Attitude a.Change in Altitude Decrease in altitude x-axis creates larger-scale image Nominal Increase in altitude creates smaller-scale image SIXE- 传感器位置和姿态 Direction of flight compression expansion expansion compression Roll rotation wing abo川 up and x-axis down angle motion nose compression ←pdown downA fore expansion fore Pitch rotation fuselage about up and V-axis down angle motion expansion aft compression tail aft down frame of imagery 2-axis rotation about Yaw aircraft flies straight z-axis but fuselage is angle x crabbed into wind 99 传感器位置和姿态 UESTC-RSIP