Influence of Ship Swaying motion on performance of Maritime Laser Communications in the Turbulence

Based on the Pierson-Moskowitz (PM) spectrum, the ship swaying motion model of vessels under different sea-states and sailing speeds conditions was developed and employed to analyze the effects of the ship swaying-induced pointing errors on outage probability of laser communications systems operated in the maritime turbulence, the influences of the atmospheric turbulence and visibility were also considered here. Results indicated that ship swaying-induced pointing errors became severe with the increase in offshore wind speed and sailing angle and the decrease in sailing speed, thereby inhibiting the performance of communication systems. The increase of turbulence strength and the decrease of visibility reduced the performance of the communication system.