90 
  
  
A 2 2 
MM Me +m, +m} 
100 4 
50 7 
0 T T T T T — n 
10 20 30 40 50 
Diagram 24. Ordinary aerial triangulation. Mean values of radial standard errors. 
h 
Bridging. s, — = 1. 
0 
5 
In diagram 21 the square root of (352) is plotted for different values 
of n. The mean values of the curves are demonstrated in diagram 22 
h 
C 
Example: s, — 0,01 mm 
= 20 000 and » = 10; M —3,0m. 
4.3. Ordinary aerial strip triangulation 
From (311), (32: 
ir 
3) and (349) we find for wide angle photographs and 
1 h 5 
normal overlap |— = 
h? 
c° 54n 
2 m ia L mn? — € 
m, — m + M, + M, = 80 
(98 p! 196 np? 4- 98 »? p? — 367 »? + 
+ 367 np) (353) 
In diagram 23 the square root of (353) is plotted for different values 
of n. The mean values of the curves are demonstrated in diagram 24 
h 
C 
Example: s, — 0,01 mm - 
— 20 000 and nr — 10; M 1,6 m.