›› 2014, Vol. 23 ›› Issue (7): 74202-074202.doi: 10.1088/1674-1056/23/7/074202
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
李亚清a, 吴振森a, 张元元a, 王明军b
Li Ya-Qing (李亚清)a, Wu Zhen-Sen (吴振森)a, Zhang Yuan-Yuan (张元元)a, Wang Ming-Jun (王明军)b
摘要: Based on the modified Rytov theory and the international telecommunication union-radio (ITU-R) slant atmospheric structure constant model, the uniform scintillation index of partially coherent Gaussian-Schell model (GSM) beam propagation in the slant path is derived from weak- to strong-turbulence regions considering inner- and outer-scale effects. The effects of wavelength of beams and inner- and outer-scale of turbulence on scintillation are analyzed numerically. Comparison between the scintillation of GSM beams under the von Karman spectrum and that of beams under the modified Hill spectrum is made. The results obtained show that the scintillation index obtained under the von Karman spectrum is smaller than that under the modified Hill spectrum. This study can find theory bases for the experiments of the partially coherent GSM beam propagation through atmospheric turbulence.
中图分类号: (Wave propagation in random media)