提出将雷达成像技术应用于目标探测,研究了其适用的雷达工作体制。用双频共轭处理和KEYSTONE变换,解决运动目标的距离徙动校正问题,以实现雷达信号的长时间积累,并将时频分析用于目标检测过程,仿真结果表明了该方法的有效性。并针对两坐标防空搜索雷达,给出了一个实例分析。

A view is presented that radar imaging technology should be extended to the field of target detection, the radar system is investigated for this view. The double carrier frequency conjugated processing and Keystone transform is used to correct the range migration of moving target for radar signal long time intergration, and time-frequency analysis is introduced to target detecting course. The simulation results show the effectiveness of the new method. A 2D search radar example for air defence is presented based on this view.

TN958