雷达型空空导弹抗速度拖引干扰算法研究

摘要

速度拖引干扰是目前对付雷达型空空导弹的主要有源欺骗干扰，随着战斗机机动性能的提高，速度拖引干扰的使用往往与目标的规避机动同时进行。这迫使导引系统在拖引信号中断后进行较大范围的频率搜索，迟滞或无法截获目标，最终造成角度跟踪的失败。为此，文中提出了利用空空导弹角度通道滤波信息辅助速度通道抗速度拖引干扰的新的抗干扰算法，以期达到抑制目标大机动情况下使用速度拖引干扰的效果。通过仿真表明，在目标大机动时释放速度拖引干扰的情况下，该算法具有较好的抗速度拖引干扰效果。%The velocity gate pull-off jamming ( VGPO) is the most important active deception jam-ming for countering the radar air-to-air missile .With the improvement of the fighter maneuver perform-ance, the use of VGPO and the target evasive maneuver are often simultaneous .This results in that the guidance system should have to research wide range for intercepting the target , which makes it difficult to intercept again.And the angle tracking fails eventually .For this, the paper presents a new anti-jamming algorithm which uses the angle information of the target to assist the velocity information for courrtering VGPO.The simulation proved the validity of the new algorithm .