摘要
双站雷达凭借其良好的抗干扰能力和准确的探测识别能力在军事领域中被广泛应用,如何对这种收发分置的雷达系统实施有效干扰已成为当前的研究热点。典型干扰物的双站雷达截面(Radar Cross Section,RCS)随角度变化的波动幅度大,双站散射强度较弱,在对抗双站雷达方面不具优势。针对以上问题,通过分析4类典型干扰物的双站散射特性,提出一种对抗双站雷达的新型组合式干扰物,然后对不同波段、不同尺寸、不同间距的新型组合式干扰物单体/阵列进行电磁仿真计算,研究在不同参数下的双站散射特性,并与典型干扰物进行对比分析。研究结果表明,提出的新型组合式干扰物单体/阵列具有较强的双站散射强度,并且在双站角变化时,其RCS的波动幅度较小,具有良好的双站散射特性,为实现对双站雷达的有效干扰提供了技术支撑。
Bistatic radar is widely used in military field by virtue of its good anti-jamming ability and accurate detection and identification ability,and how to effectively jam this transceiver-split radar system has become a current research hotspot.Typical jammers have large fluctuations of bistatic RCS with angle change and weak bistatic scattering strength,which are not advantageous in countering bistatic radar.Therefore,a new type of combined jammer against bistatic radar is proposed by analyzing the bistatic scattering characteristics of four types of typical jammers.Afterwards,electromagnetic simulation calculations are carried out on the new combined jammer monomer/array of different bands,sizes and spacings to study the bistatic scattering characteristics under different parameters,and compared with typical jammers.The results show that the new combined jammer monomer/array has strong bistatic scattering strength and the fluctuation amplitude of its RCS with respect to angle is smaller,with good bistatic scattering characteristics,providing technical support for effectively jamming of bistatic radar.
作者
辛蔚
刘鑫
王伟东
孟刚
刘佳琪
XIN Wei;LIU Xin;WANG Weidong;MENG Gang;LIU Jiaqi(National Key Laboratory of Science and Technology on Test Physics&Numerical Mathematics,Beijing,100076)
关键词
双站雷达
组合式干扰物
散射特性
无源干扰
电磁仿真
bistatic radar
combined jammer
scattering characteristics
passive jamming
electromagnetic simulation
作者简介
辛蔚(2000-),女,硕士研究生,主要研究方向为目标特征控制;刘鑫(1975-),女,研究员,主要研究方向为目标特征控制;王伟东(1979-),男,研究员,主要研究方向为目标特征控制;孟刚(1963-),男,研究员,主要研究方向为飞行器设计;刘佳琪(1963-),男,研究员,主要研究方向为飞行器设计。
