| SC-FDE在无人机遥测下行链路中的应用研究 |
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| 引用本文： | 宋祖勋,贺亚飞,张炳军.SC-FDE在无人机遥测下行链路中的应用研究[J].信息安全与通信保密,2012(8):78-80,83. |
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| 作者姓名： | 宋祖勋 贺亚飞 张炳军 |
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| 作者单位： | 1. 西北工业大学365所,陕西西安,710065
2. 中国石油开发公司,北京,100009 |
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| 摘 要： | 该文针对无人机高速率下行数据链通信中存在的码间干扰和多径衰落,在对无人机信道进行建模的基础上,采用了迫零均衡(Zero Forcing,ZF)和最小均方误差均衡(Minimum Mean Square Error,MMSE)两种算法的单载波频域均衡(Single Carrier Frequency Domain Equalization,SC-FDE)技术对此码间干扰和多径衰落进行了抑制;通过仿真得到采用SC-FDE技术使得误码率明显下降,从而验证了在无人机高速率下行数据链通信中,采用SC-FDE技术能有效抑制码间干扰和多径衰落。
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| 关 键 词： | 单载波频域均衡 无人机下行链路 迫零均衡 最小均方误差均衡 |
Application of SC-FDE in UAV Telemetry Downlink |
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| SONG Zu-xun,HE Ya-fei,ZHANG Bing-jun.Application of SC-FDE in UAV Telemetry Downlink[J].China Information Security,2012(8):78-80,83. |
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| Authors: | SONG Zu-xun HE Ya-fei ZHANG Bing-jun |
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| Affiliation: | (INo. 365 Institute of Northwestern Polytechnical University, Xi＇an Shaanxi 710065, China; 2China Petroleum Technology ＆ Development Corporation, Beijing 100009, China) |
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| Abstract: | In view of the inter-symbol interference and mnltipath fading existed in the high-speed data communication of UAV（unmanned aerial vehicle） downlink, two algorithms with SC-FDE technology are adopted to suppress this ISI（inter-symbol interference） and multipath fading, and simulation indicates that the SC-FDE technology could make the error rate much lower and thus effectively suppress ISI and multipath fading in the high-speed data communication of UAV downlink. |
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| Keywords: | SC-FDE UAVdownlink ZF MMSE |
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