基于完全互补码扩频的通信雷达一体化系统  

Integrated Communication and Radar System Based on Complete Complementary Code Spread Spectrum

作　　者：赵羚岚 杨奕冉 刘喜庆 彭木根[1] ZHAO Linglan;YANG Yiran;LIU Xiqing;PENG Mugen(State Key Laboratory of Networking and Switching Technology,School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]北京邮电大学信息与通信工程学院网络与交换技术国家重点实验室,北京100876

出　　处：《无线电通信技术》2023年第1期118-125,共8页Radio Communications Technology

基　　金：国家重点研发计划(2021YFB2900200);国家自然科学基金(61921003,62271085)。

摘　　要：海量的设备接入网络极易导致严重的频谱拥堵,通信雷达一体化是应对该挑战的关键方法之一。然而,如何有效应对多用户和多目标之间的自干扰和互干扰是通信雷达一体化亟待解决的基础难题。为此,借助码分复用机理,将完全互补码作为扩频码,设计通感一体化信号,构建了多用户和多目标场景下的通信雷达一体化方案。仿真结果表明,与典型的扩频方案相比,所提方案具有更低的误码率与更高的频谱效率;此外,当信噪比较低时,所提方案可以对更多目标进行探测。The massive devices accessing the network are prone to severe spectrum congestion,and communication-radar integration is one of the crucial approaches to address this issue.However,the produced self or mutual interferences between multi-users and multi-targets is a critical challenge that needs to be handled in a proper way.To this end,this paper constructs a communication-radar integration signal using the code division multiplexing mechanism under multi-user and multi-target scenarios,wherein complete complementary codes serve as spreading codes.Simulation results show that the proposed scheme exhibits lower Bit Error Rate(BER)and higher spectral efficiency than typical spread spectrum schemes;moreover,the proposed scheme can perform detection with more targets even if the Signal-to-Noise Ratio(SNR)is low.

关 键 词：通信雷达一体化 信号共享 扩频 完全互补码 

分 类 号：TN911.25[电子电信—通信与信息系统]