| 微波复合调制信号解调算法分析与实现 |
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| 引用本文： | 居滋培,华闰祺,白凌. 微波复合调制信号解调算法分析与实现[J]. 上海理工大学学报, 2009, 31(4) |
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| 作者姓名： | 居滋培 华闰祺 白凌 |
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| 作者单位： | 上海理工大学,光电信息与计算机工程学院,上海,200093 |
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| 摘 要： | 围绕复合调制信号解调算法与软件实现展开详细的讨论.首先介绍调幅、调频的解调算法.通过相干解调和非相干解调算法的对比,说明了相干解调算法的优越性,并在相干解调算法的基础上,进一步提出了正交解调算法和正切解调算法.利用LabVIEW数据流图的编程方式,编制了二次正交解调算法的软件,实现复合调制信号的数字化解调.通过仿真与实验结果,充分表明,采用二次正交解调算法对复合调制信号进行数字解调,能得到较好的解调效果.
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| 关 键 词： | 复合调制信号 数字解调 仿真 |
Analysis and implementation of signal demodulation algorithm for microwave composite signal modulation test system |
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| JU Zi-pei,HUA Run-qi,BAI Ling. Analysis and implementation of signal demodulation algorithm for microwave composite signal modulation test system[J]. Journal of University of Shanghai For Science and Technology, 2009, 31(4) |
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| Authors: | JU Zi-pei HUA Run-qi BAI Ling |
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| Affiliation: | School of Opical-Electrical and Computer Engineering;University of Shanghai for Science and Technology;Shanghai 200093;China |
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| Abstract: | Mainly focusing on the algorithm for complex modulation signal's demodulation and its software implementation,the demodulation algorithm for amplitude and frequency modulation was provided.Via the comparison between coherent and non-coherent demodulation algorithms,the quadrature demodulation algorithm and the tangent demodulation algorithm based on coherent demodulation algorithm were proposed.Using LabVIEW to program the data flow diagram,the second quadrature demodulation algorithm software was implement... |
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| Keywords: | LabVIEW |
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