摘要
基于李托夫近似理论，推导出了非相干合成情况下多高斯光束在非科尔莫哥洛夫湍流大气模型中闪烁指数的解析表达式，研究了多层径向光束阵列在弱湍流中传输的强度起伏和开关键控调制情况下系统的误码率。结果表明在给定阵列半径的情况下，可以通过调整阵列层数和每层上的光束数目以减小接收端的强度起伏和误码率。
Based on the Rytov approximation theory, the analytical expression for the scintillation index of multiple beams propagating through non-Kolmogorov turbulence is derived, where the incoherent combination is considered. The intensity fluctuation and bite error rate （BER） of the on-off-keying modulated multilayer radial beam array are studied. The results show that with a given beam array radius, the scintillation index and BER can be reduced by adjusting the layer number of the beam array and the beam number on each layer.
出处
《光学应用（中英文版）》
2014年第2期12-18,共7页
Journal of Optics Applications
基金
受国家自然科学基金支持资助（No.61101005和No.61008049）.
关键词
李托夫近似理论
闪烁指数
强度起伏
多层径向光束阵列
误码率
Rytov Approximation Theory
Scintillation Index
Intensity Fluctuation
Multilayer Radial Beam Array
BER
