Abstract
全极化综合孔径辐射计（Full Polarization Interferometric Radiometer，FPIR）是一套高分辨率、轻量化、低功耗的X波段一维综合孔径微波辐射计.分析了FPIR的极化理论，推导出FPIR的极化可视度函数.为了获取全极化信息，FPIR系统采用两种不同的天线阵列设计方案.对于每种稀疏天线阵列，设计了最优极化切换序列.设计的最优极化序列不仅使灵敏度的损失达到最小，还使得水平极化、垂直极化和交叉极化亮温的灵敏度达到相同水平.
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