L波段信号在戈壁地区的反射特性分布

Reflection Property for L Band Signal in the Gobi Area

基于戈壁地区特殊的地层结构,根据不同地层的组成成分,包括含沙、含水、含土比例等参数指标,确定了相应的介电常数。在此基础上根据电磁波在多层介质中的传播理论,利用电磁仿真软件HFSS对该模型进行了仿真计算分析。该工作能够为工作于戈壁地区的雷达系统设计提供一定的参考。

The dielectric constants for the different earth layers at the Gobi area has been presented based on their concrete compo- nents such as water content, sand contend, granite content, clay content etc. Based on the special Gobi earth layers and the corre- sponding dielectric constants and electromagnetic wave propagation theory in the multi media, an electromagnetic model is created and further simulated and analyzed by the software HFSS, where the result may be benefit for designing the radar systems working at the Gobi area.