改进的可变门限旁瓣消隐技术

An Improved Side-Lobe Blanking Technique with Variable Threshold

在雷达电子战中,旁瓣消隐(SLB)是一项对抗脉冲欺骗干扰的有效手段。然而,基于传统固定消隐门限的旁瓣消隐技术,其消隐门限难以选择,并且在实践中主辅天线间增益差过大时会由于过度消隐造成雷达检测性能下降。针对这一缺陷,提出一种改进的可变门限旁瓣消隐技术,引入了旁瓣消隐门限因子的概念,并推导了雷达相关检测概率与消隐门限间的关系。仿真结果表明,所提方法可以在保证消隐逻辑有效可靠的同时,极大地改善雷达检测性能。

In radar electronic warfare Side-Lobe Blanking(SLB)is an effective means against pulsed deception jamming.However it is difficult for the SLB technology based on the traditional fixed blanking threshold to select the blanking threshold.Moreover in practice when the gain difference between the main and auxiliary antennas is too large the radar detection performance will be degraded due to excessive blanking.To overcome the defects an improved variable threshold SLB technology is proposed the concept of SLB threshold factor is introduced and the relationship between radar correlation detection probability and the blanking threshold is deduced.The simulation results show that the proposed method can greatly improve the radar detection performance while ensuring the effectiveness and reliability of blanking logic.