中文摘要：

雷达高分辨距离像（HRRP）体现了目标散射中心在视线方向分布的结构特征,在雷达自动目标识别领域具有重要的应用价值。本文提出了一种基于原子范数最小化的HRRP散射中心估计方法,该方法根据原子范数的信号模型,对HRRP进行建模,将散射中心的估计问题转化为原子范数最小化问题。此估计方法直接在连续的位置空间进行求解散射中心的位置与强度,无需对散射中心的位置进行离散化处理,有效的避免了基不匹配的问题。与此同时,该方法也不需要已知散射中心的数量,而且对噪声较为鲁棒。仿真数据处理结果验证了该方法的有效性。

英文摘要：

Radar high range resolution profile （HRRP） represents the distribution of the scattering centers on targets along the radar line of sight, which can reflect the structural features of the targets and thus it is widely applied in radar automatic target recognition. This paper proposes a scattering center estimation method via atomic norm minimization. This method approximately model the HRRP based on the signal model of atomic norm and the scattering center can be estimated by sol- ving the atomic norm minimization problem. This method directly operates in continuous position space instead of in the dis- crete position space, which alleviates the basis mismatch effectively. Meanwhile, it does not need the number of scattering centers as priori information and has good robustness to noise. The simulation results demonstrate the effectiveness of this method.