| 无人机数据链联合同步技术研究 |
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| 引用本文： | 陈印杰,胡永江,李小民,范君乐.无人机数据链联合同步技术研究[J].军械工程学院学报,2009,21(2):62-66. |
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| 作者姓名： | 陈印杰 胡永江 李小民 范君乐 |
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| 作者单位： | 海军大连舰艇学院研究生管理大队;军械工程学院光学与电子工程系; |
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| 摘 要： | 依据基于OFDM的无人机数据链路同步技术的特点，分析了不同偏差对链路解调的影响，利用导频和循环前缀分别实现了频域联合同步和时域联合同步，并提出了时频域2级联合同步方案，数据仿真表明，2级联合同步不仅可以提高系统的捕获性能，还可以提高系统的跟踪精度。
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| 关 键 词： | 同步 联合同步 OFDM 无人机 |
Study on Combined Synchronization of Unmanned Aerial Vehicle Data Link |
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| CHEN Yin-jie,HU Yong-jiang,LI Xiao-min,FAN Jun-le.Study on Combined Synchronization of Unmanned Aerial Vehicle Data Link[J].Journal of Ordnance Engineering College,2009,21(2):62-66. |
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| Authors: | CHEN Yin-jie HU Yong-jiang LI Xiao-min FAN Jun-le |
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| Institution: | 1.Guaduate Students'Brigade;Dalian Naval Academy;Dalian 116018;China;2.Department of Optics and Electrics Engineering;Ordnance Engineering College;Shijiazhuang 050003;China |
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| Abstract: | According to the characteristics of Unmanned Aerial Vehicle(UAV) data link synchronization technique,the paper analyses how the different offsets affect the demodulation,realizes the combined synchronization of frequency domain and that of time domain separately by using pilot and cyclic prefix,and proposes the plan of time-frequency two-stage combined synchronization.The simulation results show that two-stage combined synchronization not only enhances the system capturing performance,but improves the syste... |
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| Keywords: | synchronization combined synchronization OFDM UAV |
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