风场影响下无线电声波探测系统探测高度改善的数值模拟

Numerical simulation of detection height improvement of radio acoustic sounding system under influence of wind field

从扰动介质中的电波波动方程出发,结合声波传播方程,尝试使用时域有限差分方法,构建了一个描述电波和声波相互作用的数值模型,运用该模型分析了实际大气风场和温度背景下RASS探测高度的改善。该模型可以评估无线电声波探测系统的性能。

Starting from the radio wave equation in the disturbance medium, combined with the acoustic wave propagation equation, a numerical model describing the interaction between the radiowave and the sound wave is constructed by using the finite-difference time-domain （FDTD） method.The model is used to analyze the improvement of detection height of the RASS under the actual atmospheric wind field and temperature background. This model can evaluate the performance of theRASS.