论文部分内容阅读
针对磁控管雷达容易受到基于DRFM(Digital Radio Frequency Memory)的转发式距离假目标干扰这一问题。基于真实目标回波稳态部分存在叠加而假目标信号稳态部分不存在叠加这一规律,提取瞬时频率作为区分假目标信号和真实目标回波的特征,提出假目标干扰对抗方法。实验结果表明,该方法提取的特征能够可靠区分真实回波和假目标信号,为抗转发式距离假目标干扰研究提供了新的思路。
For the magnetron radar is susceptible to DRFM (Digital Radio Frequency Memory) -based forwarding pseudo-target interference problem. Based on the fact that the steady-state echo part of the real target is superposed and the stationary part of the false target signal does not overlap, the instantaneous frequency is extracted as the feature of distinguishing the false target signal from the true target echo. Experimental results show that the feature extracted by this method can distinguish true echo from false target signal reliably, and provide a new idea for the study of anti-forwarding distance pseudo-target interference.