【摘要】 定义了不同形式三维矢量天线极化 角度相干结构(PACS)之间的两种等价关系,将所有形式的三维正交矢量天线分为了3个等价类,并针对各等价类中典型结构进行了秩 1模糊的研究。结果发现3类天线的模糊区域特点各不相同。但在处理非线极化信号时,其角度模糊区域均具有离散特征;而在处理线极化信号时,角度模糊区域则都呈现连续特征。研究了空域兼并信号的极化 角度域可分性,揭示了三维矢量天线由于电磁分量的部分残缺而在极化 角度域不能完全分辨仅存在极化距离的多个同向信号这一局限性。更多还原

【Abstract】 Two kinds of equivalence among three-dimensional vector sensor’s polarization-angular coherence structures (PACS) with different forms are introduced. All PACSs of concern are divided into three groups according to the given equivalence definition. It is shown that the PACSs of different groups have different characters and the ambiguity region occupies only some separated points for non-linearly polarized signal of interest (SOI) but renders a continuous support for linearly polarized SOI. It is also demonstrated that the SOI of identical directions can not be completely distinguished only by 3-D PACS due to the deformity of partly induced electromagnetic components.更多还原