一种无扰的多载波互补码分多址通信雷达一体化方案  

A Non-interference Multi-Carrier Complementary Coded Division Multiple Access Dual-Functional Radar-Communication Scheme

作　　者：沈炳声 周正春 杨洋[2] 范平志[1] SHEN Bingsheng;ZHOU Zhengchun;YANG Yang;FAN Pingzhi(School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China;School of Mathematics,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]西南交通大学信息科学与技术学院,成都611756 [2]西南交通大学数学学院,成都611756

出　　处：《电子与信息学报》2025年第1期201-210,共10页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(U23A20274,62171389);四川省自然科学基金创新研究群体(2024NSFTD0015);中央高校基本科研业务费(2682024CX027)。

摘　　要：随着新兴应用的不断涌现,频谱拥堵问题日益严重。通信雷达一体化(DFRC)是解决频谱拥堵问题的关键技术之一。然而,如何解决通信与雷达之间的相互干扰并实现高通信速率是通信雷达一体化亟待解决的基础难题。该文以多载波互补码分多址技术为基础,设计一种适用于多用户场景的新型通信雷达一体化信号。理论分析和仿真结果表明,与典型的扩频方案相比,所提方案可以实现通信雷达的无扰传输,并具有低的误码率与高的通信速率。Objective As the digital landscape evolves,the rise of innovative applications has led to unprecedented levels of spectrum congestion.This congestion poses significant challenges for the seamless operation and expansion of wireless networks.Among the various solutions being explored,Dual-Functional Radar-Communication(DFRC)emerges as a key technology.It offers a promising pathway to alleviate the growing spectrum crunch.DFRC systems are designed to harmonize radar sensing and communication within the same spectral resources,maximizing efficiency and minimizing waste.However,implementing DFRC systems presents significant challenges,particularly in mitigating mutual interference between communication and radar functions.If this interference is not addressed,it can severely degrade the performance of both systems,undermining the dual-purpose design of DFRC.Additionally,achieving high communication rates under these constraints adds complexity that must be carefully managed.Therefore,tackling interference mitigation while ensuring robust and high-speed communication capabilities is a fundamental challenge the research community must address urgently within DFRC systems.Successfully resolving these issues will pave the way for widespread DFRC adoption and drive advancements across various fields,from autonomous driving to smart cities,fundamentally transforming our interactions with the world.Methods Multi-carrier Complementary-Coded Division Multiple Access(MC-CDMA)is a sophisticated spread spectrum communication technology that utilizes the unique properties of complementary codes to enhance system performance.A key advantage of MC-CDMA is the ideal correlation characteristics of these codes.Theoretically,they can eliminate interference between communication users and radar systems.However,this requires a data block length of 1.Since a guard interval must be added after the data block,a length of 1 results in many guard intervals during transmission,lowering the communication user’s transmission rate.To address th

关 键 词：通信雷达一体化 多载波码分多址 互补码 

分 类 号：TN958[电子电信—信号与信息处理]