The influence of atmospheric channel on the quality of laser transmission is a key problem in wireless optical communication. It is necessary to analyze the transmission characteristics of wireless optical communication signals under different weather conditions. Based on the measurement data of subcarrier 16PSK modulated communication system, the probability statistics of light intensity distribution and cyclic spectrum characteristics of 16PSK signal are compared and analyzed under four different weather conditions. The results show that subcarrier modulation can suppress the influence of atmospheric turbulence. The 16PSK signal has obvious cyclic stationary characteristics under four weather conditions, but snow days have the greatest influence on the distribution of light intensity and cyclic spectrum characteristics.

© 2019 The Author(s)

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