耗散弱起伏随机介质中lateral脉冲波传播:Ⅱ、互相干函数

Lateral Pulse Wave Propagation in Lossy Weak Fluctuation Random Media:Ⅱ.A Mutual Coherence Function

在弱起伏耗散随机介质中,利用 Born 近似、DGF 方法、Fourier 变换和高频窄带近似,设激发源为脉冲偶极子,本文得到了其无线电通信中相干 lateral 脉冲波的理论公式,进而得到了瞬态相干 lateral 脉冲波的互相干函数的解折表达式,数值计算表明,该结果和前人的理论结果是一致的。

In weak fluctuating lossy random media,using Born approximation,DGF method, Fourier transform and high frequency narrow band approximation,the theoretical for- mula for the coherence lateral pulse wave in radio communication is obtained in this paper;the analytical representation for mutual coherence function for transient cohere- nce lateral pulse wave is derived.Numerical results reveal that the formulae in this paper agree with the former's theoretic results.