二阶矩检测算法辅助的混沌超宽带系统  

Chaotic Ultra-Wideband System Assisted by Second-order Moment Detection Algorithm

作　　者：马焕 戴林 龙慧[3] MA Huan;DAI Lin;LONG Hui(The Electronics and Information Engineering Department,Zhaoqing University,Zhaoqing 526061,China;School of Information Engineering,Shaoguan University,Shaoguan 512000,China;School of Intelligent Engineering,Shaoguan University,Shaoguan 512000,China)

机构地区：[1]肇庆学院电子与电气工程学院,广东肇庆526061 [2]韶关学院信息工程学院,广东韶关512000 [3]韶关学院智能工程学院,广东韶关512000

出　　处：《电脑与电信》2024年第8期6-9,共4页Computer & Telecommunication

基　　金：广东省自然科学基金面上项目,项目编号:2024A1515012059;广东省教育厅重点学科建设项目,项目编号:2022ZDJS050;肇庆学院高层次项目培育计划资助项目,项目编号:GCCZK202401;广东省普通高校青年创新人才类项目,项目编号:2024KQNCX021。

摘　　要：在传统的混沌超宽带(UWB)系统中,接收机中使用基于能量的检测算法。由于超宽带场景下信号将经历密集多径衰落信道,导致传统基于能量检测的混沌超宽带系统存在能量波动的问题,进而导致该通信系统比特错误率(BER)性能的下降。针对现有混沌超宽带系统中存在的信号能量波动问题,提出了一种创新的系统优化方案。通过提出一种二阶矩算法辅助的检测机制,集成在多用户调频差分混沌移位键控超宽带系统,目的在于显著降低系统的比特错误率。最终,通过一系列仿真测试,充分验证了所提出系统设计的有效性,为混沌超宽带通信技术在实际应用中的部署提供了坚实的理论依据。In traditional chaotic Ultra-Wideband(UWB)systems,energy-based detection algorithms are used at the receiver.However,due to the dense multipath fading channel experienced by signals in UWB environments,the traditional energy detection-based chaotic UWB systems suffer from energy fluctuations.This issue leads to a degradation in the Bit Error Rate(BER)performance of the communication system.To address the problem of signal energy fluctuations in existing chaotic UWB systems,an innovative system optimization scheme is proposed.By introducing a second-order moment algorithm-assisted detection mechanism,integrated into a multi-user frequency-modulated differential chaos shift keying UWB system,the aim is to significantly reduce the system's BER.Finally,through a series of simulation tests,the effectiveness of the proposed system design is fully validated,providing a solid theoretical foundation for the deployment of chaotic UWB communication technology in practical applications.

关 键 词：无线通信 超宽带 混沌通信 误比特率 衰落信道 

分 类 号：TN911[电子电信—通信与信息系统]