基于行波阵天线的频率分集技术应用方案

Application of Frequency Diversity Technique Based on Traveling-wave-fed Arrays

传统频率分集技术应用于脉冲多普勒雷达,可以利用频率间的非相参积累来提高雷达作用距离,但提高幅度不大。文中介绍了一种方案,利用行波阵天线频扫角,通过合理规划雷达控制流程,增加了各工作频率下单个脉冲重复频率的相参积累时间,从而有效提高脉冲多普勒雷达作用距离。与传统方案对比,该方案对雷达作用距离有更明显的提高。

The application of traditional frequency diversity technique can only improve operating range of pulse Doppler（PD） radar slightly,which utilizes non-coherent integration among frequencies.A novel scheme is proposed in this paper.By using frequency squint angle of traveling-wave-fed arrays and planning radar control flow properly,it can increase coherent-integration interval of single PRF for all frequencies and improve operating range of PD radar effectively.Compared with the traditonal scheme,this scheme can increase radar operating range significantly.