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基于A.S.Gurvich等人所提出的非柯尔莫哥洛夫湍流功率谱密度模型,推导了弱起伏条件下的到达角起伏方差,得到了一个解析的结果;然后,利用该结果分析了对流层柯尔莫哥洛夫湍流和平流层非柯尔莫哥洛夫湍流对星光到达角起伏的联合影响。结果表明:星光到达角起伏主要是由对流层柯尔莫哥洛夫湍流决定;对于不同的接收孔径,到达角起伏5%~14%是由平流层非柯尔莫哥洛夫湍流引起的。此外,非柯尔莫哥洛夫湍流对到达角起伏还取决于接收孔径、湍流外尺度及非柯尔莫哥洛夫湍流起伏强度。
Based on the non-Kolmogorov turbulent power spectral density model proposed by ASGurvich et al., The angular variation of the arrival angle under weak undulation is derived and an analytical result is obtained. Then, the results of the tropospheric Cole Combined effects of Mogrove turbulence and stratospheric non-Kolmogorov turbulence on the arrival angle fluctuation of the starlight. The results show that the fluctuation of the arrival angle of the starlight is mainly determined by the tropospheric Kolmogorov turbulence. For different receiving apertures, the 5% ~ 14% fluctuation of the arrival angle is caused by the non-Kolmogorov turbulence in the stratosphere. In addition, fluctuations in the arrival angle of non-Kolmogorov turbulence also depend on the receiver aperture, turbulence outer scale, and non-Kolmogorov turbulence fluctuations.