地表反射对雷达干扰站干扰效果影响研究

Research on Impact of Ground Reflection on Interference Effects of Radar-jamming Station

对于工作在米波段和分米波段的雷达干扰站,地表反射引起的波瓣分裂效应会严重影响其干扰效果.针对这一问题,从理论上推导分析了地表反射导致的波瓣分裂原理;通过Matlab仿真比较干扰站在地表反射条件下与自由空间中的干扰效果,揭示了地表反射导致某些雷达干扰站干扰效果急剧下降;并在此基础上提出了一种多站高度综合部署的方法来改善地表反射影响.仿真结果表明,该方法有效地改善了地表反射对该雷达干扰站干扰效果的影响.

Aimed at the problem that the interference effects of radar-jamming station operating in VHF and UHF are severely affected by lobe-division caused by the ground reflection,the principles of the ground reflection resulting in the lobe-divisions were analyzed,the interference effects under the circumstance of ground reflection and in the free space were compared by using Matlab simulation,which reveals that the ground reflection can result in the jamming effects of some radar-jamming stations being reduced dramatically,based on which the scheme of multi-station height integrated deployment was proposed,reducing the impact of ground reflection.Simulations show that the scheme can lower effectively the impact of ground reflection on the interference effects of radar-jamming station.