现代雷达2025，Vol.47Issue(2)：21-30,10.DOI:10.16592/j.cnki.1004-7859.20230613001
基于OFDM梳状谱的雷达通信一体化信号研究
A Study on Integrated Radar Communication Signal Based on OFDM Comb Spectrum
摘要
Abstract
Currently,with the rapid development of mobile communications,wireless communication frequency bands are actively expanding and gradually overlapping with radar operating frequency bands,resulting in increasing communication interferences to radar systems.In order to efficiently utilize radar frequency bands for communication while avoiding conflicts with radar,radar-communication spectrum sharing technology has been widely researched and explored,with a focus on integrated radar communica-tion signal.However,traditional integrated signals have limited degrees of freedom and cannot efficiently balance the performances of radar and communication.Therefore,the use of time-frequency domain subcarrier degrees of freedom is further expanded,and a integrated radar communication signal technology based on orthogonal frequency division multiplexing(OFDM)comb spectrum is proposed in this paper.To address the inherent distance ambiguity issue of OFDM comb spectrum signals,a time-frequency agile method is employed to obtain the apparent distance at multiple time-frequency scales,and a filtering-matching algorithm is applied to recover the true distance of the target.An excellent radar ambiguity function is offered by the proposed approach while wireless communication performance is maintained.Simulation results show that the proposed method ensures excellent radar detection per-formance and high-speed wireless communication capability.关键词
雷达通信一体化/正交频分复用/梳状谱/距离模糊/信号处理Key words
radar-communication integration/orthogonal frequency division multiplexing(OFDM)/comb spectrum/range ambigu-ity/signal processing分类
电子信息工程引用本文复制引用
代领军,王杰,辛月,梁兴东,李焱磊,陈龙永..基于OFDM梳状谱的雷达通信一体化信号研究[J].现代雷达,2025,47(2):21-30,10.基金项目
国家自然科学基金资助项目(62171229) （62171229）
江苏省自然科学基金资助项目(BK20190772) （BK20190772）
国家自然科学青年基金资助项目(61901224) （61901224）
