| 散射衰落信道下混合载波系统的应用 |
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| 引用本文： | 王晓春,陈超群,李勇.散射衰落信道下混合载波系统的应用[J].无线电通信技术,2019(2):210-213. |
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| 作者姓名： | 王晓春 陈超群 李勇 |
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| 作者单位： | 1.中国电子科技集团公司第五十四研究所;2.中国人民解放军96831部队 |
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| 摘 要： | 针对散射衰落信道信号传输质量降低的问题,提出了基于加权分数傅里叶变换(Weight-type Fractional Fourier Transform,WFRFT)的混合载波—分段FFT解调系统信道衰落抑制技术。基于加权变换域的混合载波系统,融合了单载波调制和多载波调制信号,是一种新的无线通信体制,针对时频双选信道下的符号间干扰(Inter-symbol Interference,ISI)与载波间干扰(Inter-carrier Interference,ICI)有显著的抑制效果,通过仿真对比说明,相比较于单载波和多载波系统,误码率性能得到进一步的提升。
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| 关 键 词： | 混合载波 单载波 部分FFT OFDM |
Application of Hybrid Carrier System under Troposcatter Fading Channels |
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| WANG Xiaochun,CHEN Chaoqun,LI Yong.Application of Hybrid Carrier System under Troposcatter Fading Channels[J].Radio Communications Technology,2019(2):210-213. |
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| Authors: | WANG Xiaochun CHEN Chaoqun LI Yong |
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| Affiliation: | (The 54th Research Institute of CETC,Shijiazhuang 050081,China;Unit 96831,PLA,Beijing 100051,China) |
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| Abstract: | To solve the problem of wireless communication performance deteriorating under the troposcatter channels,an antiinterference algorithm of weighted type fractional Fourier transform(WFRFT)based hybrid(HC)carrier-partial FFT demodulation system is proposed.The hybrid carrier is a novel system,which converges the single carrier(SC)system and multi-carrier system.And it can perform better under time/frequency fading channels.It can be demonstrated from the numerical simulation that the bit error rate(BER)performance of the hybrid carrier system is better compared with SC and OFDM systems. |
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| Keywords: | hybrid carrier single carrier partial FFT OFDM |
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