基于弹目相对速度约束的雷达导引头抗遮挡搜索波形设计方法  

Design Method for Anti Occlusion Search Waveform ofRadar Seeker Based on Constraint of RelativeVelocity between Missile and Target

作　　者：牟成虎 彭巧乐 MOU Chenghu;PENG Qiaole(Shanghai Radio Equipment Research Institute,Shanghai 201109,China)

机构地区：[1]上海无线电设备研究所,上海201109

出　　处：《制导与引信》2024年第4期1-6,共6页Guidance & Fuze

摘　　要：雷达导引头在对空中目标搜索过程中,低精度的中制导距离信息和速度信息使雷达导引头无法避开距离和速度遮挡,导致搜索效率下降。针对该问题,提出了一种基于弹目相对速度约束的雷达导引头抗遮挡搜索波形设计方法。该方法利用弹目相对高速运动的特点,约束脉冲宽度、脉冲周期等波形参数,通过两次搜索成功避开距离和速度遮挡。仿真结果表明,与重频参差法抗遮挡相比,在弹目相对速度较高时,该方法可提高雷达导引头的搜索效率,抗遮挡效果明显。During the process of radar seeker aerial target search,the low precision midcourse guidance distance information and speed information make it impossible for the radar seeker to avoid the distance occlusion and velocity occlusion,that resulting in a decline search efficiency.A design method for anti occlusion search waveform of radar seeker based on the constraint of relative velocity between the missile and the target was proposed.This method utilized the characteristics of high-speed relative motion between the missile and the target to constrain the wave parameters such as pulse duration and pulse period,successfully avoided distance and velocity occlusion with two searches.The simulation results show that this method can improve the search efficiency of radar seeker compared with the pulse repetition frequency staggered anti occlusion method,and has a significant anti occlusion effect when the relative velocity between the missile and the target is high.

关 键 词：雷达导引头 距离遮挡 速度遮挡 脉冲宽度 脉冲周期 

分 类 号：TN958[电子电信—信号与信息处理]