| 基于FPGA的数字频谱分析仪的设计与研究 |
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| 引用本文： | 陈小桥,胥鸣,葛文丽.基于FPGA的数字频谱分析仪的设计与研究[J].武汉大学学报(工学版),2010,43(2). |
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| 作者姓名： | 陈小桥 胥鸣 葛文丽 |
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| 作者单位： | 1. 武汉大学电子信息学院,湖北,武汉,430079
2. 河南省濮阳供电公司,河南,濮阳,457000 |
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| 摘 要： | 利用现场可编程门阵列(FPGA)可重构性,设计了基于FPGA的一种数字频谱分析仪,介绍了该频谱分析仪的硬件系统结构组成及工作原理,并给出了基于该频谱分析仪的核心信号处理离散傅立叶变换(DFT)算法和FP-GA实现.该频谱分析仪结构灵活,运行稳定可靠,实验结果表明该数字频谱分析仪能满足0-30 MHz频段范围内实时频谱分析应用的需要.
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| 关 键 词： | 频谱分析仪 直接数字频率合成 FPGA DFT/FFT算法 |
Design and research of a digital spectrum analyzer based on FPGA |
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| CHEN Xiaoqiao,XU Ming,GE Wenli.Design and research of a digital spectrum analyzer based on FPGA[J].Engineering Journal of Wuhan University,2010,43(2). |
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| Authors: | CHEN Xiaoqiao XU Ming GE Wenli |
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| Affiliation: | CHEN Xiaoqiao1,XU Ming2,GE Wenli2(1.School of Electronic Information,Wuhan University,Wuhan 430079,China,2.Puyang Power Supply Company,Puyang 457000,China) |
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| Abstract: | Based on the reconfigurable field-programmable gate array(FPGA),the paper designs a kind of digital spectrum analyzer,and describes its system structure and components.The discrete Fourier transform(DFT) algorithm for core signal processing and the practice on FPGA are presented.The designed spectrum analyzer can run steadily and reliably.The experimental result shows that the digital spectrum analyzer can meet the demands of the real-time spectral analysis with the frequency scope of 0-30 MHz well. |
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| Keywords: | spectrum analyzer DDS FPGA DFT/FFT algorithm |
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