The transmitter beam is Gaussian for real satellite-ground laser communication system. The pointing jitter and atmospheric scintillation are the main noise sources for satellite-ground laser link.
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。
Theory analysis and computer simulation show that the precision and focus of star tracker, the divergence angle of down beam influence the probability of laser link setting up.
理论分析和计算机仿真都表明，星敏感器的测量精度和焦距，下行信号光的束散角将影响激光链路成功建立概率。
Theory analysis and computer simulation show that the precision and focus of star tracker, the divergence angle of down beam influence the probability of laser link setting up.
理论分析和计算机仿真都表明，星敏感器的测量精度和焦距，下行信号光的束散角将影响激光链路成功建立概率。
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