Abstract We propose a new direction-finding algorithm for the scenario where the fully polarized (FP) and partially polarized (PP) sources may co-exist, by using a linear cocentered orthogonal loop and dipole (COLD) array. The proposed algorithm exploits the root-MUSIC idea to estimate the directions of the PP sources and the FP sources in succession. In between these two estimations, an oblique projection operator is incorporated to separate the FP sources from PP ones. The proposed algorithm is simple, analytic, and search-free. Numerical simulations are conducted to compare the estimation accuracy of the proposed algorithm with that of the existing algorithms, and with the Cramer-Rao Bound (CRB).

中文翻译：

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使用线性冷阵列的混合完全和部分偏振源的测向

摘要 我们通过使用线性同心正交环和偶极子 (COLD) 阵列，针对全极化 (FP) 和部分极化 (PP) 源可能共存的情况提出了一种新的测向算法。所提出的算法利用root-MUSIC思想来连续估计PP源和FP源的方向。在这两个估计之间，结合了斜投影算子以将 FP 源与 PP 源分开。所提出的算法简单、解析且无需搜索。进行数值模拟以比较所提出算法的估计精度与现有算法的估计精度以及 Cramer-Rao Bound (CRB)。