基于MSK调制信号的SC-FDE均衡技术的运用  

Application of SC-FDE Equilibrium Technology based on MSK Modulation Signal

作　　者：胡速谋 屠健康 HU Sumou;TU Jiankang(Unit 91033 of PLA,Qingdao Shandong 266000,China;Unit 92325 of PLA,Datong Shanxi 037008,China)

机构地区：[1]中国人民解放军91033部队,山东青岛266000 [2]中国人民解放军92325部队,山西大同037008

出　　处：《通信技术》2021年第11期2564-2568,共5页Communications Technology

摘　　要：最小移频键控(Minimum Shift Keying,MSK)信号是当前世界发达国家海军甚低频通信的主要调制方式,但是在甚低频信号传播过程中,受到空气信道和海洋信道衰落和多径传播效应影响而导致的码间串扰,严重影响了甚低频通信的质量。单载波频域均衡(Single Carrier-Frequency Domain Equalization,SC-FDE)技术综合了单载波传输系统和正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)系统的技术优点,能够有效对抗多径传播效应,基于此,通过介绍SC-FDE技术原理,结合MSK调制信号的特点,理论上分析研究了与之相适应的MSK线性频域均衡方法。Minimum shift keying(MSK)signal is currently the main modulation mode of very low-frequency communications in developed countries around the world.However,in the process of VLF signal propagation,the quality of VLF communication is seriously affected by the intercode crosstalk caused by air channel and ocean channel fading and multipath propagation effects.However,in the process of VLF signal propagation,the quality of VLF communication is seriously affected by the air channel and ocean channel fading,as while as inter-symbol crosstalk caused by the multipath propagation effect.Single Carrier-Frequency Domain Equalization(SC-FDE)technology combines the technical advantages of a single carrier transmission system and an Orthogonal Frequency Division Multiplexing(OFDM)system,which can effectively combat multipath propagation effect.Based on this,by introducing the principle of SC-FDE technology,combined with the characteristics of MSK modulated signal,this paper theoretically analyzes and studies the corresponding MSK linear frequency domain equalization method.

关 键 词：最小移频键控 码间串扰 多径效应 单载波频域均衡 

分 类 号：TN919.3[电子电信—通信与信息系统]