4. Mathematical method to make JERS-1 simulation stereoscopic 
images 
JERS-1 simulation images are made point by point determining 
the earth's surface points sensed by sensor elements in a 
linear array sensor at any time. We will explain the way to 
determine the sensed point by a sensor element in this section. 
  
Figure 2 shows the relationship between the ground co-ordinates 
(X, Y, Z) and the satellite co-ordinates (Xst, Yst, Zst). Both 
sets of co-ordinates are rectangular plane co-ordinates and are 
defined on the earth's surface and on ‘the ^ satellite 
respectively. 
     
Satellite 
S (Xo , Yo , Zo) 
Earth's surface 
     
  
Ci{Cs 
Earth's center 
Cy, €z) 
Figure 2 Relationship between the ground co-ordinates 
(X, Y, Z) and the satellite co-ordinates 
(Xst, Yst, Zst) 
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