利用交叉电偶极子天线单元在锥面共形载体上构造极化敏感阵列,推导并建立了其快拍数据模型.在此基础上,利用锥面共形载体的单曲率特性构造满足旋转不变关系的成对子阵,根据旋转不变子空间思想提出一种信源方位和极化参数的联合估计算法.Monte-Carlo仿真实验表明,该算法能够很好地解决锥面共形阵列应用中的多参数联合估计问题.
A polarization sensitive conical conformal array antenna with crossed dipole elements was formed and its uniform data model was built,based on which,by employing the special structure properties of single curvature surface,the sub-arrays was found to agree with the rotational invariance relationship required by the ESPRIT algorithm and a joint estimation method of 2D DOA and polarization was proposed.Monte-Carlo simulation results show that the proposed algorithm is competent to solve the problem of joint 2D DOA and polarization estimation based on conical conformal array antenna(CAA).