论文部分内容阅读
引入了畸变功率衰减因子,在此基础上研究了星间光通信中不同遮挡比条件下初级像差对天线接收光功率的影响。仿真结果表明,随初级像差均方根值的增加,天线的接收光功率逐渐减弱。初级像差对天线接收功率的影响随遮挡比的变化不大。在天线对准的条件下,像散对天线的接收光功率影响最大,离焦的影响最小。当像散、彗差、球差和离焦的均方根值rms分别约为0.25π,0.25π,0.30π和0.32π时,天线的接收功率降为无畸变时的1/2。所得结果对光学系统的设计和装调具有重要的指导意义。
The distortion power attenuation factor was introduced. Based on this, the influence of primary aberrations on the received optical power of the antenna under different blocking ratios was studied. The simulation results show that with the increase of the root mean square of the primary aberration, the received optical power of the antenna gradually decreases. The effect of primary aberration on the received power of the antenna does not change much with the occlusion ratio. Under the condition of antenna alignment, astigmatism has the greatest influence on the received optical power of the antenna and the influence of defocus is the smallest. When the rms values of astigmatism, coma, spherical aberration and defocus are about 0.25π, 0.25π, 0.30π and 0.32π respectively, the received power of the antenna is reduced to ½ without distortion. The results obtained for the optical system design and installation of an important guiding significance.