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在折射指数起伏具有Gauss谱的弱起伏随机介质中,设激发源为脉冲偶极子,利用Born近似和DGF方法,研究了随机介质内部无线电通信中界面脉冲波(lateral pulse wave)的互相干函数,得到了解析解,并用背景介质层的反射系数、阻抗、导纳等物理量通过超几何级数的形式表示出来。结果表明,在该通信中,互相干函数的主要贡献来源于相干场,而非相干场的贡献也是较大的。
In a weakly fluctuating random medium with refractive index fluctuation and Gauss spectrum, we set the excitation source to be a pulsed dipole and use the Born approximation and the DGF method to study the mutual interference function of the lateral pulse wave in the radio communication of random medium , Obtained analytic solution, and the background dielectric layer reflection coefficient, impedance, admittance and other physical quantities through the form of hypergeometric representation. The results show that in this communication, the main contributions of mutual coherence function come from the coherent field, while the contribution of non-coherent field is also larger.