基于孔径平滑效应的无线光通信接收孔径的设计

基于激光大气湍流传输理论，讨论了光强闪烁对无线光通信接收性能的影响。从孔径平滑效应出发．提出了一种结合信噪比、误码率、孔径平滑3方面来考虑接收孔径尺寸的设计方法。该设计方法克服了传统只考虑孔径平滑效应来设计接收孔径不准确的缺点，从而为设计接收孔径尺寸提供理论依据。用MATLAB对参考文献中的实验数据进行数值模拟，结果表明：在此实验数据下BER〈10^-6时，当SNR0为30dB时，最优接收孔径为4cm，当SMR0为35dB时，最优接收孔径为3cm。

Design of received aperture in wireless optical communication based on aperture averaging effect

Based on the theory of laser propagation in the atmospheric turbulence, the influence that intensity scintillation has on the receiver performance of wireless optical communication is discussed. From the aperture averaging effect, in order to design the size of the receiver aperture, a method which is considered by combined signal to noise ratio,bit error rate, aperture averaging is proposed. Compared with traditional method, it can overcome the inaccurate that the design of receiver aperture is only think about aperture averaging. It provides theory basis for the design better receiver aperture. The experimental data of the reference paper under BER〈10^-6, when SNRo is 30dB,the optimal receiver aperture is 4cm. when SNRo is 35dB, the optimal receiver aperture is 3cm.