摘要
常规跳频(Frequency Hopping, FH)系统由于其可靠的通信性能而被广泛应用于无线通信抗干扰领域。但是常规跳频系统在信息传输过程中的频谱利用率较低。为此,信息驱动跳频(Message-Driven Frequency Hopping, MDFH)系统被提出以提供更高的频谱效率,然而信息驱动跳频系统的信号检测受噪声、多径衰落和干扰的影响较大,为进一步提高信息驱动跳频系统的误码率(Bit Error Rate, BER)性能,提出了一种基于多跳自相关的索引信息驱动跳频(Index MDFH,I-MDFH)方法。仿真分析结果表明,在噪声和多径衰落信道以及干扰条件下,尤其是跟踪干扰条件下,所提方法比常规跳频和传统信息驱动跳频具有更优异的误码率性能。
Conventional Frequency Hopping(FH)systems are widely used in wireless communication anti-jamming due to their reliable communication performance.However,the spectrum utilization of conventional FH systems is low during information transmission process.For this reason,Message-Driven Frequency Hopping(MDFH)system is proposed to provide higher spectral efficiency.However,signal detection of MDFH systems is greatly affected by noise,multipath fading and jamming.To further improve Bit Error Rate(BER)performance of MDFH systems,this paper proposes an Index MDFH(I-MDFH)method based on multi-hop autocorrelation.Simulation and analysis results show that the proposed method has superior BER performance over conventional frequency hopping and traditional information-driven frequency hopping in noisy and multipath fading channels as well as under jamming conditions,especially follow jamming.
作者
周硕
李玉生
于龙
张秀再
施育鑫
ZHOU Shuo;LI Yusheng;YU Long;ZHANG Xiuzai;SHI Yuxin(School of Electronic and Information Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;The Sixty-Third Research Institute,National University of Defense Technology,Nanjing 210007,China)
出处
《无线电通信技术》
2023年第6期1104-1111,共8页
Radio Communications Technology
基金
国家自然科学基金(U19B2014)~~。
