系统工程与电子技术

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基于脉内正交的抗间歇采样转发干扰方法

周畅1, 汤子跃2, 余方利2, 卢雨祥1   

  1. 1. 空军预警学院研究生队, 湖北 武汉 430019; 2. 空军预警学院, 湖北 武汉 430019
  • 出版日期:2017-01-20 发布日期:2010-01-03

Anti intermittent sampling repeater jamming method based on intrapulse orthogonality

ZHOU Chang1, TANG Ziyue2, YU Fangli2, LU Yuxiang1   

  1. 1. Department of Graduate Management, Airforce Early Warning Academy, Wuhan 430019, China;2. Airforce Early Warning Academy, Wuhan 430019, China
  • Online:2017-01-20 Published:2010-01-03

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 sampling repeater jamming is an advanced active coherent jamming technique, the under sampling and the transceiver sharing technology are the main techniques to realize the intrapulse false target group interference, while existing radar anti-jamming means are hard to against this jamming effectively. Based on the analysis of the principles of the intermittent sampling repeater jamming, for the characteristics of the Doppler shift frequency interference, an intrapulse orthogonal linear frequency modulation phase code is designed, this waveform not only detects the targets normally in undisturbed conditions with Doppler-insensitive and low sidelobe, but also splits into different sub-signals using the corresponding matched filter to reconnaissance effectively and antijamming. Experimental results show the effectiveness of the anti-jamming methods based on intrapulse orthogonal waveform.