Abstract
Tracking the moving objects in a video sequence is a critical problem in wide area airborne surveillance systems due to its cyber-physical nature. The large amount of imagery data generated by the unmanned aerial vehicle (UAV) requires high data rate link to handle real-time video streaming to the ground control station. Free space optics (FSO) technology is a promising data link for UAV due to its easy installation process, long range and duplex operation, and high bandwidth with more security. The main issue using FSO communication is the beam attenuation due to the various atmospheric impairment. In this work, the characteristics of FSO communication links with various data rate and different wavelength from UAV to the ground station has been investigated with Polarization Shift Keying (PolSK) and On-Off Keying (OOK) modulation techniques to improve the performance of data communication under various UAE weather conditions. The proposed system’s degradation model considered the rain, foggy and haze and height of UAV from the ground and a case study is experimented on the effects of FSO based UAV communication system in UAE weather conditions. The results show the performance of the mobile optical link in the presence of atmospheric effects is compared in UAE weather conditions and the graphs plotted against bit error rate (BER), attenuation and distance which highlights the benefits of FSO.
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