基于波束对消的车辆运动地物杂波抑制方法

A Beam Cancellation Based Ground Clutter Suppression Method for Radar on Moving Vehicles

针对在快速运动车辆载体上雷达目标检测中强地物杂波的抑制问题,借鉴机载雷达空时处理原理,分析了车辆运动地物杂波分布特性,探讨了运动车辆雷达差波束地物杂波对消和波束地物杂波的适用性。实测数据表明该方法可有效抑制主副瓣地物杂波,提高车辆运动中对慢速飞行目标的检测能力。

Suppressing strong ground clutter in target detection of radar on fast-moving vehicle platforms is a challenging issue.In this paper,the space-time processing principle of airborne radar is used for reference to solve the issue.First,the distribution characteristics of ground clutter during vehicle movement are analyzed.Secondly,the feasibility of ground clutter cancellation using sum beam and difference beams is discussed.The measured data shows that the proposed method can effectively suppress ground clutter in main and side lobes and improve the detection capability of radar against slow-moving aerial targets during vehicle movement.