基于宽角双向抛物线方程的高频电波传播预测方法

Method for the prediction of high frequency radio wave propagation based on two-way parabolic equation

传统抛物线方程方法求解起伏地形路径下的电波传播无法反映反射和散射效应,对刃峰地形、类似高斯型地形等起伏地形,采用分步傅里叶变换方法求解双向抛物线方程方法并考虑前向和后向传播的叠加总场,将计算结果与传统抛物线方程方法进行比较,预测结果更准确。

Traditional parabolic equation method can not reflect the reflection and scattering effect when solving relief path of radio wave propa- gation. For edge topographic peak and similar Gaussian type undulating terrain, it uses split step Fourier transform method to solve two-dimen- sional parabolic equation, and also considers the total field superposition which spreads forward and backward. Compared to the traditional par- abolic equation method, the prediction results are more accurate.