CAJ | 학술논문

通过激光水平大气传输实验，对接收的光强闪烁和光斑尺度特征进行记录。在强湍流条件下，利用光强闪烁计算出大气折射率结构常数C 2n ，并以此反演大气相干长度r0，从而计算出光斑尺度；通过与实际测量得到的等效光斑尺度进行对比分析发现：二者存在一定偏差，在r0小于0.055m的条件下相差大约200μm2，但是其量级和时间变化趋势上基本一致，分析了误差产生的原因。
통과격광수평대기전수실험，대접수적광강섬삭화광반척도특정진행기록。재강단류조건하，이용광강섬삭계산출대기절사솔결구상수C 2n ，병이차반연대기상간장도r0，종이계산출광반척도；통과여실제측량득도적등효광반척도진행대비분석발현：이자존재일정편차，재r0소우0.055m적조건하상차대약200μm2，단시기량급화시간변화추세상기본일치，분석료오차산생적원인。
The measurements experiment of laser propagation was taken in this paper. Under the strong turbulence,the structure constant of refractive index Cn2 is computed using scintillation fluctuation and predict atmospheric coherence length r0 for horizontal paths, later the spot size was computed. Compared with measured data of spot size, there is a certain deviation with 200μm2 from each other under the conditions of r0<0.055m, but the time variation is similar, at last,various errors caused by both theory and experiment are analyzed and discussed.