The influence of timing error on performance of optical pulse PPM system in atmospheric turbulence

摘要

With the avalanche photodiode (APD) as the receiver, we have studied the timing error influence on performance of the optical pulse PPM system after analyzing the channel model of the atmospheric laser communication, and respectively obtained the relationship between the normalized timing error and PWE in the strong and weak turbulent environment, hi addition, we obtained the influences of parameters such as the scintillation index, APD average gain and the levels of PPM modulation on performance of the optical pulse PPM system by simulation when there are timing errors in the system.