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由于非对称自旋目标在不同视角下宽带雷达观测到的散射点分布存在较大差异,因而需要单独研究其组网雷达成像算法。该文利用位于不同位置的两部宽带雷达获得的自旋目标1维距离像序列,基于非对称自旋目标多个散射中心的微动特征不变性,实现了自旋目标同一散射中心的关联,进而得到与目标真实尺寸相一致的3维像。仿真结果表明该算法重构精度好,对于散射中心的遮挡效应及RCS闪烁均不敏感。
Because asymmetric spin targets have different scatter distributions observed by wideband radar in different perspectives, it is necessary to study their networked radar imaging algorithms separately. In this paper, one-dimensional range image sequences of spin targets obtained from two wide-band radars at different positions are used. Based on the invariance of fretting features of multiple scattering centers of asymmetric spin targets, the same scattering center of spin targets is achieved. So as to obtain a three-dimensional image consistent with the real size of the target. The simulation results show that the algorithm has good reconstruction accuracy and is insensitive to the occlusion effect of the scattering center and the RCS flicker.