摘要
未来射频制导性能的高效验证对射频制导半实物仿真系统提出全新的挑战,需要该系统具备瞬时大带宽、多波段、多仿真系统协同工作、多场景适应等能力,进而对宽带射频信号的低损传输、幅相控制、复杂回波信号产生、高性能频综信号产生等技术提出了严苛的要求。针对基于传统微波技术的半实物仿真系统受限于带宽、体积、质量、电磁干扰等的瓶颈问题,提出基于微波光子技术的解决方案,利用其宽带频谱资源,突破传统射频系统的带宽限制;利用其并行处理特性,提升宽带信号的处理能力,实现多波段融合、波束间交叉互连;利用其轻质低损特性,减小系统体积和质量,提升宽带信号长距离传输性能。
Performance verification of future high-precision radio frequency guidance system demands for large instantaneous bandwidth,multi-band operation capability,co-operation among different simulation systems and multi-scenario adaptability,creating new challenges to the simulation systems.Technical requirements of low-loss transmission of broadband RF signals,accurate amplitude-phase control,complex echo signal generation,and highperformance frequency synthesis are in urgent need.In order to overcome the limitations of the traditional RF-based semi-physical simulation systems in bandwidth,volume,weight and electro-magnetic interference,etc.,this paper proposes a novel solution based on the microwave photonic technologies by using the huge photonic spectral resource to break through the bandwidth bottleneck of the traditional RF systems,using the photonic parallel signal processing to enable the capability of processing broadband microwave signal and realize multiple functionalities like multi-band fusion and cross-beam interconnection,using the low-loss transmission and lightweight of optical devices to reduce the volume and mass,and to implement long-haul transmission of wideband signals.
作者
潘时龙
田义
刘世锋
李小琳
PAN Shilong;TIAN Yi;LIU Shifeng;LI Xiaolin(Key Laboratory of Radar Imaging and Microwave Photonics,Ministry of Education,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,Jiangsu,China;Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China)
出处
《上海航天》
CSCD
2019年第4期98-109,共12页
Aerospace Shanghai
基金
国家自然科学基金(61527820)
中央高校基本科研业务费专项资金资助(NC2018005)
江苏省333项目(BRA2018042)
关键词
射频制导
半实物仿真系统
微波光子学
信号产生与传输
幅相控制
radio frequency guidance
semi-physical simulation system
microwave photonics
signal generation
amplitude-phase control
