论文部分内容阅读
分析了地面对卫星激光瞄准精度受大气湍流效应的影响。首先,提出了大气湍流作用下地面对卫星激光瞄准精度的概念。其次,采用多层相位屏的数值方法求解激光大气传输满足的抛物型方程,仿真研究了不同发射参数下地面对卫星的激光瞄准精度,结果表明:地面对卫星的激光瞄准精度与激光束的发射口径成正比,发射口径越大,瞄准精度越高;而与激光束的发散角成反比,光束发散角越大,瞄准精度越低。最后,比较研究了不同瞄准精度下到达卫星入瞳处的功率以及功率密度。研究成果可为开展地面对抗卫星的试验提供理论依据和数据参考。
The influence of ground-based laser aiming accuracy on atmospheric turbulence is analyzed. First of all, the concept of ground aiming accuracy of satellite laser is proposed under atmospheric turbulence. Secondly, the numerical method of multi-layer phase screen is used to solve the parabolic equation satisfied by the laser atmospheric transmission. The laser targeting accuracy of the ground to the satellite under different emission parameters is simulated. The results show that the accuracy of the laser aiming at the satellite and the laser beam Launch caliber is proportional to the launch diameter, the aiming accuracy is higher; but with the divergence angle of the laser beam is inversely proportional to the beam divergence angle, the aiming accuracy is lower. Finally, the power and power density at the entrance pupil of the satellite with different aiming accuracy are compared. The research results can provide the theoretical basis and data reference for the experiments on the ground to resist satellites.