| 接收机运动情况下天线简谐运动对信道循环平稳性影响的分析 |
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| 引用本文： | 魏利霞,曹士坷.接收机运动情况下天线简谐运动对信道循环平稳性影响的分析[J].计算机科学,2015,42(3):39-41, 64. |
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| 作者姓名： | 魏利霞 曹士坷 |
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| 作者单位： | 南京邮电大学通信与信息工程学院 南京210003 |
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| 摘 要： | 在均匀散射环境下,当天线做简谐运动时,信道中会引入循环平稳.通过分析信道循环平稳的产生机理,定义了循环平稳度来衡量引入的循环平稳.首先当接收机以恒速做直线运动且接收机上的天线做简谐运动时,研究了信道的自相关特性,包括循环平稳性;然后用Matlab仿真工具绘出有关曲线,仿真实验结果更加清晰地显示了信道的循环平稳性;最后揭示了信道循环平稳的研究意义,并对其在该领域的应用前景进行了展望.
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| 关 键 词： | 循环平稳 接收机 天线 简谐运动 信道模型 |
Analysis of Influence of Antenna Simple Harmonic Motion on Channel Cyclostationarity under Case of Receiver Motion |
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| WEI Li-xia and CAO Shi-ke.Analysis of Influence of Antenna Simple Harmonic Motion on Channel Cyclostationarity under Case of Receiver Motion[J].Computer Science,2015,42(3):39-41, 64. |
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| Authors: | WEI Li-xia and CAO Shi-ke |
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| Affiliation: | College of Communication and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China and College of Communication and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | Simple harmonic motion (SHM) can induce cyclostationarity (CS) in channel autocorrelation under isotropic scattering (ISC) environments.With analysis of generation mechanism of cyclostationarity(CS) in channel,cyclostationa-rity of the channel can be measured by defining degrees of cyclostationarity (DCS).The autocorrelation characteristics of the channel,including cyclostationarity,were studied when the receiver is moving at a constant speed along a straight line and the antenna is doing simple harmonic motion at the same time.Then related curves were simulated by Matlab,showing the cyclostationarity of channels more clearly.The significance of cyclostationarity and a discussion on the future research topics were refered at last. |
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| Keywords: | Cyclostationary Receiver Antenna Simple harmonic motion Channel model |
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