摘要
针对近年来战术通信用户对网络连接性能和吞吐量越来越高的需求,对美军战术通信系统和主流宽带通信波形进行了简要介绍,并以此为基础和参照,提出了一种适用于战术移动环境下的宽带通信波形的物理层设计方法,波形采用正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)和Turbo码等先进编码调制技术。提出了在接收端采用初始信道估计和逐符号信道估计等信号处理方法,并在AWGN信道和无线衰落信道条件下对波形的误码率进行了蒙特卡罗仿真。仿真结果表明,波形在战术移动环境下具有优良的传输性能。
To meet the increasingly high demand of tactical communication users for network connectivity and throughput recently,the US military tactical communication systems and mainstream broadband communication waveforms are introduced,and a physical layer design scheme of broadband communication waveform suitable for tactical mobile environment is proposed.Orthogonal frequency division multiplexing(OFDM)and turbo code are used in the waveform.Signal processing methods such as initial channel estimation and symbol-by-symbol channel estimation are proposed to be used at the receiver,and by Monte Carlo simulation,the BER performance of AWGN channel and wireless fading channel is obtained.The simulation results show that the waveform has good transmission performance in tactical mobile environment.
作者
李日永
王俊蕊
王亚森
李伟
黄桂树
LI Riyong;WANG Junrui;WANG Yasen;LI Wei;HUANG Guishu(Unit 91404,PLA,Qinhuangdao 066000,China;The 54th Research Institute of CETC,Shijiazhuang 050081,China;Unit 93160,PLA,Shijiazhuang 050081,China;Transportation Integrated Administrative Law Enforcement Bureau of Jilin Province,Changchun 130022,China)
出处
《无线电工程》
北大核心
2021年第8期835-840,共6页
Radio Engineering
基金
中央引导地方科技发展资金项目(206Z0701G)。
关键词
战术通信
宽带波形
正交频分复用
信道估计
tactical communication
broadband waveform
OFDM
channel estimation
