针对机载Phased-MIMO雷达的FDA干扰——第二部分：干扰STAP性能分析
FDA Jamming Against Airborne Phased-MIMO Radar-Part II: Jamming STAP Performance Analysis
AI总结：
研究FDA散射波干扰对机载Phased-MIMO雷达STAP的作用，推导散射体椭圆环轨迹及频偏与杂波秩、IF凹口关系，并通过数值结果验证其有效性。
摘要：
本系列第一部分介绍了频率分集阵列（FDA）通过直达波传播实施干扰，在对抗机载相控多输入多输出（Phased-MIMO）雷达方面的有效性。本部分重点研究FDA散射波（FDA-SW）干扰对机载Phased-MIMO雷达空时自适应处理（STAP）的有效性。与杂波信号不同，FDA-SW干扰的地面等距散射体构成一个椭圆环；文中通过数学推导其轨迹方程，进一步确定空间频率和多普勒频率。针对具有不同发射分区的Phased-MIMO雷达，讨论了FDA-SW的干扰频偏对杂波秩和STAP性能的影响。理论分析给出了杂波秩的变化区间，以及干扰频偏与Phased-MIMO-STAP改善因子（IF）凹口之间的关系。重要的是，本部分还讨论了两部分应用对干扰频偏的要求。数值结果验证了这些数学结论，并证实了所提出的FDA干扰在对抗Phased-MIMO雷达方面的有效性。
英文摘要：
The first part of this series introduced the effectiveness of frequency diverse array (FDA) jamming through direct wave propagation in countering airborne phased multiple-input multiple-output (Phased-MIMO) radar. This part focuses on the effectiveness of FDA scattered wave (FDA-SW) jamming on the space-time adaptive processing (STAP) for airborne phased-MIMO radar. Distinguished from the clutter signals, the ground equidistant scatterers of FDA-SW jamming constitute an elliptical ring, whose trajectory equations are mathematically derived to further determine the spatial frequency and Doppler frequency. For the phased-MIMO radar with different transmitting partitions, the effects of jamming frequency offset of FDA-SW on the clutter rank and STAP performance are discussed. Theoretical analysis provides the variation interval of clutter rank and the relationship between the jamming frequency offset and the improvement factor (IF) notch of phased-MIMO-STAP. Importantly, the requirements of jamming frequency offset for both two-part applications are discussed in this part. Numerical results verify these mathematical findings and validate the effectiveness of the proposed FDA jamming in countering the phased-MIMO radar.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
