| 基于SOPC的频谱分析仪设计与研制 |
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| 引用本文： | 柴钰,曹海红,杜孝春,潘红光.基于SOPC的频谱分析仪设计与研制[J].国外电子元器件,2009,17(3):11-13. |
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| 作者姓名： | 柴钰 曹海红 杜孝春 潘红光 |
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| 作者单位： | 西安科技大学电气与控制工程学院;西安航空职业技术学院自动化工程系; |
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| 摘 要： | 介绍了基于Altera的FPGA及NIOS Ⅱ软核处理器的一种任意波形的频谱分析仪器，其基本工作流程及功能包括：外部信号经A／D转换后送至NIOS核。作为实时波形显示，同时则送至FFT处理模块前侧的FIFO暂存区，供FFT模块分析处理：分析得到的实部及虚部数据经由平方求和后送至NIOS核，处理得到最终数据并送至显示器显示。系统全部采用硬件实现．具有很好的实时性。
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| 关 键 词： | 频谱 NIOS核 FFT FIFO(先进先出) |
Design and study of spectrograph based on SOPC technology |
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| CHAI Yu ,CAO Hai-hong,DU Xiao-chun,PAN Hong-guang.Design and study of spectrograph based on SOPC technology[J].International Electronic Elements,2009,17(3):11-13. |
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| Authors: | CHAI Yu CAO Hai-hong DU Xiao-chun PAN Hong-guang |
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| Affiliation: | CHAI Yu 1,CAO Hai-hong1,2,DU Xiao-chun1,PAN Hong-guang1 |
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| Abstract: | Spectrum analysis instrument which can analyse arbitrary signal with FPGA chip and the NIOS II processor of Altera are introduced.Its basic work flow and functions includes:the external signal is convered through the A/D module and be delivered to the NIOS core,the data is used to display the figure of the singnal in time domain;the data is delivered to the FIFO on the front of the FFT processing module,and then the FFT processing module will process the data.The real part and the imaginary part attained du... |
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| Keywords: | spectrum NIOS core FFT FIFO （First In First Out） |
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