步进频率信号长相参积累实现方法

Integral detector using stepped frequency signals

提出一种宽脉冲等效法 ,在不降低距离分辨率的前提下可克服雷达多个脉冲回波积累检测时距离走动的影响 .该方法利用宽发窄收工作方式 ,在扫描或波束驻留过程中以步进频率同时或序贯发射宽脉冲 ,而在脉压前对宽脉冲进行处理以获得长相参处理时间 ,其特点是在对微弱运动目标积累检测的同时保持较好的无模糊速度和距离分辨力 .

The equivalent wide-pulse (EWP) long coherent integrated technique with range resolution capability is proposed which can overcome range migration in a low observable target detector. The method makes use of both simultaneously and sequentially emitted stepped frequency signals to carry out coherent integration against each individual frequency component before pulse compressing. It has advantages of achieving long coherent processing duration while holding range and velocity resolution capabilities.