标题： 关于频率分集雷达波形的杂波秩 显示英文标题

标题： On Clutter Ranks of Frequency Diverse Radar Waveforms

摘要： 频率多样（FD）雷达波形在雷达研究和实践中具有吸引力。通过结合两种典型的FD波形——频率多样阵列（FDA）和步进频率（SF）脉冲串，本文提出了一种通用的FD波形模型，称为随机频率多样多输入多输出（RFD-MIMO）。新模型通过调整参数可以应用于特定的FD波形。此外，通过探索杂波协方差矩阵的特性，我们提供了一种评估RFD-MIMO雷达杂波秩的方法，该方法可作为FD波形杂波抑制潜力的定量指标。数值模拟显示了杂波秩估计方法的有效性，并揭示了比较不同FD波形杂波抑制性能的有用结果。 显示英文摘要

摘要： Frequency diverse (FD) radar waveforms are attractive in radar research and practice. By combining two typical FD waveforms, the frequency diverse array (FDA) and the stepped-frequency (SF) pulse train, we propose a general FD waveform model, termed the random frequency diverse multi-input-multi-output (RFD-MIMO) in this paper. The new model can be applied to specific FD waveforms by adapting parameters. Furthermore, by exploring the characteristics of the clutter covariance matrix, we provide an approach to evaluate the clutter rank of the RFD-MIMO radar, which can be adopted as a quantitive metric for the clutter suppression potentials of FD waveforms. Numerical simulations show the effectiveness of the clutter rank estimation method, and reveal helpful results for comparing the clutter suppression performance of different FD waveforms.