空间光通信中高斯光束传输闪烁指数测量系统

Scintillation Index Measuring System of Gaussian Beam on Space Optical Communication

基于ARM9嵌入式MCU设计并制作了闪烁参数测量系统,利用该系统对激光在实际湍流中的闪烁指数进行实验测量.在实际测量中,证明该系统能实时地测量激光在湍流大气中传输的闪烁指数.实验结果表明:当高斯光束在湍流大气中的传输距离越大,其闪烁指数越大;在相同位置处,高斯光束的闪烁指数随着湍流强度的增加而增大.

A scintillation index measuring system based on embedded MCU of ARM9 is designed.The scintillation index of laser beams in a real turbulent atmosphere is experimentally measured,and the experimental result shown that the scintillation index of a Gaussian beam increases with the increasing of the propagation distance.Moreover,at the same location,the scintillation index is larger in a stronger turbulent atmosphere.