高功率微波大气传输折射指数和衰减系数计算统一模型

Unified Calculation Model of the Refractive Index and Attenuation Coefficient for High Power Microwave Propagation in the Atmosphere

高功率微波大气传输的空间层面不同,辐射电场对空间环境特性影响的程度也不同,高功率微波在其中的传输特性和研究模型亦有差别。论文提出了高功率微波大气及电离层传输特性研究的统一模型--混合气体传输模型,推导了高功率微波混合气体中传输时的色散公式,给出了混合气体传输条件下折射指数和衰减系数的计算模型。在适当的条件下,混合气体传输统一模型可自洽地过渡到空间各个层面。给出的混合气体传输统一模型为高功率微波大气传输链路特性及其仿真研究提供了一种较为简捷的方法。

The characters of high power microwave propagating in atmosphere are related to the propagation links. And the intensive electric field of high power microwave highly affects the circumstance of its propagation links. Different characters and research models in different layers are adopted in the earlier research of high power microwave. A unified model, mixed-gas propagating model, is presented in this paper. Dispersion formula, refractive index and attenuation coefficient of microwave propagation in mixed gas are derived. In proper conditions, the model in mixed-gas can be developed to the models in lower atmosphere or ionosphere. And this model can simplify the simulation of microwave propagating in atmosphere.