模拟雷达多普勒频移干扰信号的研究

Research of Simulated Radar Doppler Shift Interference Signal

直接数字频率合成器(DDS)技术在军事和民用领域已经得到广泛的应用;采用DDS技术生成多普勒频移信号,将其调制到雷达信号中,从而生成多普勒频移干扰信号,以达到对目标径向速度信息的干扰;并通过对不同多普勒频移干扰信号的脉冲压缩、杂波抑制处理和恒虚警检测处理理论分析及仿真验证,结果表明利用DDS技术生成的多普勒频移干扰信号,具有很好的欺骗效果。

Direct Digital Synthesis （DDS） technology in the militar.y and civilian areas has been widely used. In this paper, using DDS technology to generate doppler frequency shift signal, then the modulation of radar signals to produce doppler interference Signals in order to achieve the target radial velocity information interference. By the theoretical and simulation analysis of pulse compression, clutter suppression processing and CFAR processing for different Doppler frequency shift interference signals, which results show that the use of DDS technolo- gy to generate interference signals doppler effect has a deception good.