基于线性调频的雷达通信一体化波形研究进展

Research Progress of Integrated Radar-Communication Waveform Based on Linear Frequency Modulation

雷达通信一体化是指在实现二者硬件共用的基础上,进一步进行波形融合,即用一个信号同时执行雷达和通信功能的技术,以优化系统性能,节约频谱资源。阐述了一体化的技术内涵及发展阶段,分析了线性调频(LFM)信号在一体化系统中的应用潜力,总结了LFM一体化波形设计、高频宽带LFM信号以及LFM一体化波形光学产生和处理的研究进展。分析认为,微波光子将在雷达通信一体化系统中发挥重要作用,未来的雷达通信一体化系统不仅是光学和电学技术相融合的系统,也是模拟和数字技术相结合的系统。

Integrated radarcommunication refers to waveform fusion based on hardware sharing to simultaneously perform radar and communication functions using one signal.Consequently,the system performance can be optimized,and the frequencyspectrum resources can be saved.In this paper,a systematic overview of the integrated radarcommunication waveform is provided.Specifically,the technical connotation and development stage of the radarcommunication integration are presented,the application potential of linear frequency modulation(LFM)signal in the integrated system is analyzed.And the research progresses of LFMintegrated waveform design,highfrequency broadband LFM signal,and LFMintegrated waveform optical generation and processing are summarized.Studies have shown that microwave photons play an important role in the future of integrated radarcommunication systems,and radarcommunication integration is a system integrating optical and electrical technologies and linking analog and digital technologies.