Recently the image process was getting more attention to analysing the propagation of laser. In this study describes the changing of laser spot profile being dependent upon the amount of attenuation and throw simulate dust storm. Several ways used to find the intensity changing, 3D surface profile of spot, intensity spectral distribution and FFT analysing. The simulate dust storm with a particle size 53 µm has been completed by traveling light through glasses box volume was cm3 with indoor fan to move the dust during the laser pass for a 20 seconds pictures snapped of the laser spot at different time of dust storm (0, 5, 15, 25, 35, 45 and 60 minutes.
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