The transmitter beam is Gaussian for real satellite-ground lasercommunication system. The pointing jitter and atmospheric scintillation are the main noise sources for satellite-ground laserlink.
实际星地光通信系统的发射光束为高斯型的情况下，跟瞄误差和大气闪烁是星地激光链路中的主要信道噪声源。
2
Error of laser beam pointing has severe influences on the received power and bit error rate in the link of inter-satellite optical communication.