CAJ | 학술논문

分析雷达回波特性,从非相参信号模拟开始,提出一种雷达回波模拟器的实现方法。该方法可以利用已知或计算机产生的目标信息运算获得回波信号数据,通过FPGA或DSP芯片控制DDS产生中频回波信号。这种方法具有极大的灵活性和通用性,只要改变计算机回波信号计算模型或参数,即可实现不同回波信号的模拟。
분석뢰체회파특성,종비상삼신호모의개시,제출일충뢰체회파모의기적실현방법。해방법가이이용이지혹계산궤산생적목표신식운산획득회파신호수거,통과FPGA혹DSP심편공제DDS산생중빈회파신호。저충방법구유겁대적령활성화통용성,지요개변계산궤회파신호계산모형혹삼수,즉가실현불동회파신호적모의。
Characteristic of the radar echo is analyzed;an implementation method of a radar echo signal simulator is presented for non-coherent signal simulation.By using this method,echo signal data can be obtained through computation based on known or computer generated target information;and intermediate frequency(IF) echo signal can be generated by DDS under the control of FPGA or DSP chip.The method features great flexibility and versatility,simulation of different echo signal can be achieved by merely changing computer echo signal calculation model or parameters.