对发射系统的跟踪抖动对激光湍流大气传输光束扩展的影响进行了数值分析，并且得到了跟踪抖动对光束扩展影响的定标关系。由此定标关系可知，当系统衍射角σ0较大时，跟踪抖动对光束扩展的影响比较小；但是当系统衍射角σ0较小时，特别是在湍流效应较弱的情况下，抖动的影响非常显著，此时光束扩展主要是由系统抖动项所决定的。通常在湍流效应较弱时，系统跟踪抖动对光束扩展的影响相对较大，随湍流效应的不断增强，湍流扩展逐渐起主导作用，而系统跟踪抖动对光束扩展的影响相对逐渐减小。因此，由此定标关系可以定量了解不同条件下系统衍射、系统跟踪抖动以及湍流效应对光束扩展影响的大小，并为系统优化设计提供定量的科学依据。

By using numerical simulation, we analyzed the effect of the transmitting system's tracking jitter on the beam spreading induced by atmospheric turbulence. The scaling relations that describe the effect of tracking jitter on the beam spreading are obtained. When the angle radius of the diffraction spot's the first dark ring is big, the effect is relatively small. But when the angle radius is small, especially for turbulent effects being weak, the effect on the beam spreading is very distinct, and the magnitude of the beam spreading is mainly dependent on the jitter item of the scaling relations. In general, when turbulent effects are weak, the effect of tracking jitter is relatively distinct. However, with turbulent effects being gradually strong, gradually the magnitude of the beam spreading is mainly dependent on the turbulence item of the scaling relations. Therefore, through these scaling relations, we can quantitatively learn the effect of diffraction of transmitting system, tracking jitter and turbulent effects on beam spreading under different conditions. Moreover, we can obtain the scientific basis for the practical engineering systems' optimization design.