有限雨介质相干场的准确表达式

The Accurate Expression of Coherent Scattering Field in Limited Rain Medium

导出了有限大小离散介质中毫米波段相干散射场的准确表达式,并以雨介质为例,应用所得结果进行数值仿真,结果表明:雨介质的大小对毫米波的衰减不会产生较大的影响,波的衰减随频率、降雨率的增大而增大,呈现出非线性,与有关文献一致,具有明确的物理意义.

In millimeter wave band,the accurate expression of coherent scattering field in limited rain medium is presented,which has the obvious physics significance.when rain medium is taken as an example,the result obtained is numerically imitated with rain medium.Computing results show that the attenuation of millimeter waves is not seriously influenced by the size of rain medium.The attenuation nonlinearly increases versus the operating frequency and rain rate,which is agreement with the references.