基于抛物方程法的电波传播预测

Prediction of Waves Propagation Based on the Theory of Parabolic Equation

为研究电波在起伏地形下的传播特性,针对实际地形电波损耗测量较为不便的情况,设计并搭建实验平台,并结合抛物方程法,对实验结果进行分析.首先介绍了二维抛物方程的推导过程,然后对比了实验测试数据、抛物方程理论计算值以及国际电联ITU526标准下的理论计算数据,结果表明,抛物方程法计算结果与实验结果接近,同ITU526标准模型基本相符.

To investigate the propagation properties of radio waves in rough terrains, according to the fact that it is not convenient for us to measure the radio waves propagation loss in the real landform, we have designed and built the experimental platform, then the experimental results are analyzed combining with the theory of parabolic equation. Firstly, the calculation formula of two-dimensional parabolic equation is introduced. Comparing the laboratory test data with the value calculated through the theory of parabolic equation and the ITU526 standard, we find that the theoretical calculation of data under the parabolic equation method is more in line with the observational results with the experiment and consistent with the result with ITU 526.