基于脉内正交的抗间歇采样转发干扰方法
发布时间：2018-10-10 16:30
【摘要】：间歇采样转发干扰是一种先进的有源相干干扰技术,主要利用欠采样和收发分时技术实现脉内假目标群干扰,现有雷达抗干扰手段尚无法实施有效对抗。在深入研究间歇采样转发干扰原理的基础上,针对其多普勒频移干扰的特点,设计了一种脉内正交的线性调频-相位编码波形,该波形不仅能够在无干扰条件下进行正常检测目标,具有一定的多普勒不敏感和低副瓣特性;而且能针对间歇采样转发干扰,拆分成不同的子信号,利用其相应匹配滤波器对该干扰进行有效侦察识别、干扰对抗。仿真结果证明了基于脉内正交波形抗间歇采样转发干扰方法的有效性。
[Abstract]:Intermittent sampled-forward jamming is an advanced active coherent jamming technology, which mainly uses under-sampling and transceiver time-sharing techniques to achieve intra-pulse false target jamming. However, the existing radar anti-jamming methods are still unable to implement effective countermeasures. On the basis of deeply studying the principle of intermittent sampling and forwarding jamming, according to the characteristics of Doppler frequency shift interference, a linear frequency-phase coded waveform with orthogonal pulse is designed. The waveform not only can detect the target normally without interference, but also has the characteristics of Doppler insensitivity and low sidelobe, and can be divided into different sub-signals for intermittent sampling and forwarding interference. The corresponding matched filter is used to detect and identify the jamming effectively. The simulation results show the effectiveness of the method based on intrapulse orthogonal waveform against intermittent sampling and forwarding interference.
【作者单位】： 空军预警学院研究生队;空军预警学院;
【基金】：空军“十二五”预研项目资助课题
【分类号】：TN974
本文编号：2262476
[Abstract]:Intermittent sampled-forward jamming is an advanced active coherent jamming technology, which mainly uses under-sampling and transceiver time-sharing techniques to achieve intra-pulse false target jamming. However, the existing radar anti-jamming methods are still unable to implement effective countermeasures. On the basis of deeply studying the principle of intermittent sampling and forwarding jamming, according to the characteristics of Doppler frequency shift interference, a linear frequency-phase coded waveform with orthogonal pulse is designed. The waveform not only can detect the target normally without interference, but also has the characteristics of Doppler insensitivity and low sidelobe, and can be divided into different sub-signals for intermittent sampling and forwarding interference. The corresponding matched filter is used to detect and identify the jamming effectively. The simulation results show the effectiveness of the method based on intrapulse orthogonal waveform against intermittent sampling and forwarding interference.
【作者单位】： 空军预警学院研究生队;空军预警学院;
【基金】：空军“十二五”预研项目资助课题
【分类号】：TN974
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