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一种相控阵体制的抗干扰分析方法
青滔,刘晓东
0
(中国西南电子技术研究所,成都 610036;空军装备部,北京 100843)
摘要:
从信干比角度考虑,传统的全向辐射体制系统很难实现远距离抗干扰通信,而相控阵体制的高增益、低旁瓣特征可以使系统获得一定的抗干扰能力。从信干比分析入手,引入干扰概率指标,给出了一种针对抗干扰能力的统计分析方法,并进行了仿真分析,结果表明,由于阵面规模直接决定了方向图特性,而天线阵的体积、重量、功耗、成本均随阵元数目的增多而增长,所以在总体设计时需要对阵面规模进行折中考虑。该方法已成功应用于系统硬件总体设计。
关键词:  抗干扰通信  相控阵天线  统计分析方法
DOI:
基金项目:
An analysis method on anti-jamming for phased array system
QING Tao,LIUXiaodong
(Southwest China Institute of Electronic Technology,Chengdu 610036,China;Air Force Equipment Department,Beijing 100843,China)
Abstract:
In consideration of the signal-to-interference ratio(SIR),it is difficult to achieve remote anti-jamming communication using the traditional omnidirectional radiation system.The high gain and low sidelobe characteristics of phased array antenna make the system acquire the anti-jamming capability.Starting with the SIR analysis,this paper introduces the jammed probability parameter,proposes a statistical analysis method on anti-jamming capability and performs simulations.The result demonstrates that,since the scale of the array decides the performance of the pattern,and the size,weight,power dissipation and cost of the antenna array increase with the amount of the elements,the array scale needs to be compromised in overall design.This method has been applied in the overall design of system hardware successfully.
Key words:  anti-jamming communication  phased array antenna  statistical analysis method
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