在现代雷达技术的发展中,相参捷变频雷达因其目标分辨能力和在电子对抗战中的优势而越来越多地被应用。文中介绍了三种相参捷变频雷达接收机的体制,并分析了各自的原理以及适用的应用场景。针对该体制在杂波抑制上的难题,提出一种基于最优输出信杂比的杂波滤波器的设计方法,对回波信号进行杂波抑制以实现动目标处理。展示了由原理样机进行的外场实验,通过对外场实验获取得真实数据进行分析,验证了系统的相参性和动目标处理的有效性。

With the development of modern radar system, frequency-agile coherent (FAC) radar becomes increasingly attractive for its advantages in target imaging and electromagnetic counter-countermeasures. Three structures of FAC radar receiver are introduced; their principles and applying situations are analyzed. A clutter suppression method based on best output single-to-clutter ratio filter is proposed, which can implement moving target indication (MTI). Field experiments using FAC radar prototype are made to demonstrate coherent and MTI performance according to analyzed experimental data.

TN974