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多音干扰下Nakagami-m信道传输Link16数据链的性能分析 被引量:13

Performance analysis of Nakagami-m channel transmission Link16 under multi-tone interference
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摘要 Link16数据链的应用综合广泛,由于运用了跳扩频和编码技术使其具有强大的抗干扰能力。为了探究Link16数据链在衰落信道下的响应,在加性高斯白噪信道的基础之上,研究了Link16数据链经过Nakagami-m衰落信道的系统性能。着重推导了Link16数据链单脉冲结构在多音干扰下经过Nakagami-m衰落信道的误码率(bit error rate,BER)表达式,并给出了双脉冲结构BER公式。仿真实验结果验证了Link16数据链单脉冲结构在多音干扰下经过Nakagami-m衰落信道的BER公式的准确性,分析了多径参数对Link16数据链抗干扰性能的影响,得出增加衰落参数m和可分辨路径可以提升Link16数据链的系统性能,且当信干比一定、被干扰频点个数在25个及以上时系统BER达到10-1。 Link16 data link has a wide range of applications.Because of the application of spread spectrum hopping and coding technology,it has a strong anti-interference ability.In order to explore the response of Link16 data link in fading channel,based on additive white Gaussian noise channel,the system performance of Link16 data link through Nakagami-m fading channel is studied.The bit error rate(BER)expression of Link16 data link monopulse structure passing through Nakagami-m fading channel under multi-tone interference is derived,and the BER formula of double pulse structure is given.Simulation results verify the accuracy of BER formula of Link16 data link monpulse structure passing through Nakagami-m fading channel under multi-tone interference,analyze the influence of multi-path parameters on the anti-jamming performance of Link16 data link,and conclude that adding fading parameter m and discernible path can improve the system performance of Link16 data link.And when the signal-to-jamming ratio is constant and the number of interfered frequency points is 25 or more,the BER of the system reaches 10-1.
作者 宁晓燕 王影 孙志国 罗海玲 NING Xiaoyan;WANG Ying;SUN Zhiguo;LUO Hailing(College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China)
出处 《系统工程与电子技术》 EI CSCD 北大核心 2023年第2期566-571,共6页 Systems Engineering and Electronics
基金 先进船舶通信与信息技术工业和信息化部重点实验室(AMCIT2101-05) 黑龙江省高精度卫星导航及海洋应用重点实验室开放基金(HKL-2021-Y02)资助课题。
关键词 LINK16数据链 NAKAGAMI-M衰落信道 多音干扰 误码率 Link16 data link Nakagami-m fading channel multi-tone interference bit error rate(BER)
作者简介 宁晓燕(1984—),女,副教授,博士,主要研究方向为5G通信物理层新技术、认知通信、军用数据链。;王影(1997—),女,硕士研究生,主要研究方向为军用数据链、通信对抗。;通讯作者:孙志国(1977—),男,教授,博士,主要研究方向为新一代数据链与集群通信系统、认知通信防护技术。;罗海玲(1997—),女,硕士研究生,主要研究方向为军用数据链、认知通信。
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