m +» 
o o 
RESPONSE (Percent) 
o 
RESPONSE (96) 
  
  
(C © 
1 | | 1 L | 1 Li 1 i | 
5 20 30 40 5060 100 150 200 300 
SPATIAL FREQUENCY (Cycles/mm) 
  
  
  
  
  
  
E —1-—1 | EL E ll 
3. 4 5 6 10 5 = 
SPATIAL FREQUENCY (cycles/mm) 
  
Fig. 9. MTF for the LANDSAT MSS detector (79 m), 
with frequencies corresponding to cutoff 
(vc), EIFOV (ve/1.67), and vc/2 
noted for a 70 mm image format. 
t 
o 
o 
To 
o 
a 
uJ 
o 20 
z 
o 
a 
o 
uJ 
a 
o 6 
o 
  
  
LJ 1-1 | | dL) 
6 10 15 30 40 5060 100 
SPATIAL FREQUENCY (Cycles/mm) 
  
Oo 
  
  
HD 
o 
RESPONSE (95) 
RESPONSE (Percent) 
no 
© 
  
  
  
30 40 50 60 
SPATIAL FREQUENCY (cycles/mm) 
  
  
LL 1-14 | | | LA 
5.6 10 I5 30 40 5060 100 
SPATIAL FREQUENCY (Cycles/mm) 
  
Fig. 10. MSS detector MTF compared to measured 
band 5 image MTF's determined by scale 
Component MTF's for the Skylab ETC matching (SMA) and line-spread function 
system (top); predicted ETC system (LSF) analysis (Schowengerdt , Antos e 
MTF's for second-generation photo- and Slater, 1974). 
graphs (middle); and measured MTF's 
(bottom).