September 2019 Full - page 653

(a)
(b)
Figure 10. Three sets of viewing angle curves for each detector in the forward
CCD
line array.
(a)
(b)
Figure 11. Three sets of viewing angle curves for each detector in the nadir
CCD
line array.
(a)
(b)
Figure 12. Three sets of viewing angle curves for each detector of the backward
CCD
line array.
Table 6. Statistical analysis of viewing angles (unit: number of pixels).
CCD Line
Compared
Objects
Difference in viewing angles in the flight direction
Difference in viewing angles in the CCD direction
Max
Min
Mean
Std
Max
Min
Mean
Std
Forward
CCD
Data A 4.446
0.702
2.067
0.771
1.898
0
1.266
0.604
Data D
5.096
0
2.852
1.283
1.066
0
3.998
1.283
Nadir CCD
Data A 1.924
0
0.756
0.538
4.654
0.003
2.343
1.468
Data D
1.898
0
0.758
0.542
4.628
0.003
2.343
1.466
Backward
CCD
Data A 7.514
2.99
4.608
0.598
4.498
0
1.988
0.999
Data D 10.660
5.122
7.357
0.942
11.93
0
5.275
3.862
PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
September 2019
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