【作者】 郭立新； 左炎春； 刘伟； 刘松华；

【Author】 GUO Li-xin;ZUO Yan-chun;LIU Wei;LIU Song-hua;Xidian University;

【机构】 西安电子科技大学；

【摘要】 飞机尾流中箔条云的电磁散射计算在以往的研究中很少涉及。本文提出了一种基于矢量辐射传输理论(VRT)的箔条云团电磁散射特性计算方法。首先,根据空气动力学理论建立箔条云在飞机尾流场中的扩散模型。其次,使用VRT方法计算箔条云的双站散射系数。仿真计算了典型情况下含10~5个元素的箔条云的双站散射系数,为了验证本文提出的方法,进行了室外实验,仿真结果与实验结果吻合较好。更多还原

【Abstract】 —The electromagnetic scattering properties of the chaff cloud in airflow are rarely addressed in previous works.An electromagnetic scattering evaluation strategy is presented based on the Vector Radiative Transfer(VRT) method.Initially,the model of the chaff cloud in an airflow field is created according to the aerodynamics theories.Next,the bistatic scattering coefficients of the chaff cloud are calculated using the VRT method.Furthermore,parallel CPU acceleration technology is adopted to reduce the computing time.In simulations the bistatic scattering coefficients of the chaff cloud which contains 105 elements in a typical scenarios are evaluated.To verify the method proposed in this paper,outdoor experiments are performed and show that the simulation results have a good agreement with experimental results.更多还原