Consideration on Satellite Data Correction
387
where
is the reflectance of target.
is the reflected intensity of the measured
target.
is the reflected intensity of the white board.
is the reflectance of
the white board. The incident angle, reflected angle and azimuth angle are shown in
Fig. 2.
First, we measured the reflectance in nadir
direction and at 0°
azimuth angle. The indicatrices of the sand are obtained by changing incident angles.
The result in the nadir direction is shown in Fig. 3, and the Minnaert constant obtained
from the indicatrix is k = 1.26.