分析了用重心法计算光斑能量中心时图像相对光源强度分布失真引入的误差,建立了强度失真模型,引入修正该失真的修正因子,提出了相应的修正算法,并讨论了该修正算法在卫星激光通信跟踪系统中的应用。计算机模拟结果表明,在适当的情况下,计算出的由于像面上强度分布相对光源失真而导致的跟踪角度偏差可增至109″,从而证明了在激光卫星通信系统中,修正因子的引入提高了定位、跟踪精度和信道的可靠性。 The error introduced by the distortions of the relative light intensity distribution of the image when the center of the spot energy is calculated by the center of gravity method is analyzed. The intensity distortion model is established, the correction factor for correcting the distortion is introduced, the corresponding correction algorithm is proposed, and the correction algorithm is discussed. Application in Communication Tracking System. The computer simulation results show that the calculated tracking angle deviation due to the intensity distribution of the image plane relative to the light source can be increased to 109 "under appropriate conditions, which proves that in the laser satellite communication system, the introduction of a modification factor is improved Positioning, tracking accuracy and channel reliability.