| 带通欠采样定理在软件无线电中的应用 |
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| 引用本文： | 蒋华,王书相.带通欠采样定理在软件无线电中的应用[J].西安科技大学学报,2004,24(4):492-495. |
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| 作者姓名： | 蒋华 王书相 |
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| 作者单位： | 1. 北京电子科技学院,电工系,北京,100070
2. 六盘水宏通通讯信息有限公司,技术科,贵州,六盘水,553000 |
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| 摘 要： | 从软件无线电的实现出发对带通欠采样定理进行了完整的推导、分析，得出其等效表达式为2fH/n≤fs≤2fL/(n-1),2≤n≤N，并给出了带通欠采样定理在不同条件下的MATLAB仿真结果。最后结合全数字中频直扩接收机的研制，进一步验证了欠采样定理的实用性。
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| 关 键 词： | 软件无线电 带通欠采样 信噪比 射频信号 无线通信 |
| 文章编号： | 1672-9315(2004)04-0492-04 |
| 修稿时间： | 2003年3月24日 |
Application of bandpass undersampling principle in software radio |
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| JIANG Hua,WANG Shu-xiang.Application of bandpass undersampling principle in software radio[J].JOurnal of XI’an University of Science and Technology,2004,24(4):492-495. |
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| Authors: | JIANG Hua WANG Shu-xiang |
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| Institution: | JIANG Hua~1,WANG Shu-xiang~2 |
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| Abstract: | The bandpass undersampling principle was analyzed based on the implementation of software radio, and the results were shown, which was simulated by MATLAB under different conditions. An application is also given. In the last part of the paper, an application is also given in the digital intermediate-frequency DS(Direct Spread) receiver, and the practicability of the bandpass undersampling principle is further proven. |
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| Keywords: | software radio undersampling signal-to-noise |
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