论文部分内容阅读
欺骗干扰基于很小功率就可实现对MIMO雷达的有效干扰。为抑制欺骗干扰,该文提出了一种基于信号捷变、数据融合和假目标陷波滤波的抗干扰方法。多个发射信号间相互正交,每次发射信号前,每个接收机在信号集中选择一个发射信号,接收机接收所有信号的回波,然后基于恒虚警率的方法进行检测。在不同回波图像中检测到的目标,通过融合鉴别真假,使用陷波滤波器挖掉假目标,然后进行新一轮的检测和数据融合,经过多轮检测、融合和陷波滤波,虚假目标全部被剔除,真实目标得以保留,干扰影响完全被消除。仿真证明该方法可完全抑制MIMO雷达受到的欺骗干扰。
Deceptive Interference Effective interference to MIMO radar can be achieved based on very small power. In order to suppress cheating interference, an anti-jamming method based on signal agility, data fusion and false target notch filter is proposed. Multiple transmit signals are orthogonal to each other. Before each signal transmission, each receiver selects a transmit signal in the signal set. The receiver receives the echoes of all signals and then detects it based on the constant false alarm rate. Detected in different echo images of the target, through the fusion to identify true and false, the use of notch filter digging false targets, and then a new round of detection and data fusion, after many rounds of detection, fusion and notch filtering, false All the targets have been eliminated, and the true targets can be preserved and the interference effects completely eliminated. Simulation results show that this method can completely suppress the deception of MIMO radar.