| 一种VWDK调制的边带抑制方法及VWDK性能研究 |
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| 引用本文： | 李小平,吴乐南.一种VWDK调制的边带抑制方法及VWDK性能研究[J].电路与系统学报,2011,16(3):50-55. |
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| 作者姓名： | 李小平 吴乐南 |
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| 作者单位： | 南京工程学院通信工程学院;东南大学信息科学与工程学院; |
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| 基金项目： | 江苏省高校自然科学研究计划项目(08KJD510013); 江苏省政府出国留学基金; 江苏省青蓝工程项目; 南京工程学院科研基金(KXJ07005) |
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| 摘 要： | 传输带宽对信号传输的带宽效率有着重要的意义.本文讨论了一种较大幅度抑制VWDK调制传输带宽的滤波方法.首先通过设计和使用VWDK整形滤波器大幅度压缩了VWDK已调信号传输带宽;其次接收端使用逆滤波大幅降低了采样频率;最后在逆滤波后选择、使用带通滤波器进一步降低了满足一定解调要求的信噪比.
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| 关 键 词： | UNB VWDK 整形滤波 |
On a method of VWDK side lobe restraining and VWDK performance |
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| LI Xiao-ping,WU Le-nan.On a method of VWDK side lobe restraining and VWDK performance[J].Journal of Circuits and Systems,2011,16(3):50-55. |
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| Authors: | LI Xiao-ping WU Le-nan |
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| Institution: | LI Xiao-ping1,WU Le-nan2(1.School of Communication Engineering,Nanjing Institute of Technology,Nanjing 211167,China,2.School of Information Science and Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | Transmission bandwidth is very important to bandwidth efficiency of signal transmitting.In this paper,a kind of filtering method that deeply compresses VWDK transmission bandwidth is discussed.Firstly,reshaping filter is designed to depress side lobe of VWDK power spectrum,which brings VWDK transmission bandwidth reduced rapidly.Then,an inverse filter is used in receiving terminal to reduce sampling rate.Finally,a band-pass filter is chosen to add behind the inverse filter,and the Eb/No of certain error bit... |
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| Keywords: | UNB VWDK reshaping filter |
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