基于微波光子技术的混频信道化收发系统

Mixed-frequency channelized transceiver system based on microwave photonic technology

针对雷达和电子干扰系统的射频前端对宽带多频点信号同时侦察处理的重大需求,给出了基于微波光子技术的超宽带混频信道化收发系统的设计方案,并进行了实验验证.实验结果表明,该系统能实现对频率11~15GHz、瞬时带宽4GHz的高频超宽带信号产生及信道化接收;与传统射频方案相比,本文方案降低了系统复杂度,为解决未来电子装备大瞬时带宽与大动态的矛盾提供了新的思路,在一体化通用电子信息平台的设计实现中具有重要参考价值.

In order to meet the requirements of radar and electronic jamming systems’RF front-ends for simultaneously detecting and processing ultra-wideband(UWB)and multi-frequency signals,this paper presents a design scheme of UWB mixed-frequency channelized transceiver system based on microwave photonic technology,which has been verified by experiments.The experimental results show that the system can achieve the generation and channelized reception of the high frequency UWB signals with frequency 11 GHz-15 GHz and instantaneous bandwidth 4 GHz,and that compared with the traditional RF scheme,the proposed scheme reduces the system complexity,which provides a new way of thinking to solve the contradiction between large instantaneous bandwidth and large dynamic of future electronic equipment,and also has important reference value in the design and implementation of integrated general electronic information platforms.