基于辐射中心分解的天线辐射场合成

Antenna Radiation Field Composing Study Based on Decomposed Radiating Centers

采用逆投影算法对观测天线不同方向辐射场的仿真数据进行成像处理,获取其辐射强度的分布图像,并引入偶极子辐射中心的概念,采用参数估计法对天线辐射场进行分解并合成,合成结果与直接计算的不同距离的天线辐射场分布数据吻合较好,有效地解决了近场散射建模中天线辐射场的描述问题。同时,该方法也可应用于双站RCS数据压缩、天线反设计及雷达仿真应用等方面。

Used the simulated antenna s radiation data of different direction,the radiant intensity image were gotten by Back-Projecting algorithm.The conception of radiation center was introduced,which is used to decompose the antenna radiation field by parametric estimation method.And the composed data based on radiation centers are consisted with the radiation field of different distance calculated by MoM,which proved that the decompose composed method is fit to describe antenna s radiation field in near field scat...