| 基于FPGA的数字幅频均衡器的设计 |
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| 引用本文： | 闭吕庆.基于FPGA的数字幅频均衡器的设计[J].玉林师范学院学报,2010,31(5):49-51. |
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| 作者姓名： | 闭吕庆 |
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| 作者单位： | [1]广西大学电气工程学院工程硕士,广西南宁530004 [2]玉林师范学院物理与信息科学系讲师,广西玉林537000 |
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| 摘 要： | 本系统利用FFT快速傅里叶变换技术,完成20Hz～20kHz信号从时域到频域的变换.系统采用FPGA＋MSP430单片机的双核协同工作方式;其中,FPGA作为核心处理器完成FFT快速傅里叶变换,包括各个频点的峰值取样及幅频均衡和处理后的信号重建;而超低功耗单片机MSP430作为协处理器提供友好的人机显示界面,两个处理器能够相互结合工作,各发挥其优点,因此较出色地完成了数字幅频均衡功能.经调试并实测,效果良好.
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| 关 键 词： | FFT FPGA MOS场效应管 |
The Design of Digital Amplitude-Frequency Equalizer Based on FPGA |
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| BI Lv-qing.The Design of Digital Amplitude-Frequency Equalizer Based on FPGA[J].Journal of Yulin Teachers College,2010,31(5):49-51. |
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| Authors: | BI Lv-qing |
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| Institution: | BI Lv-qing,(1.MSC,College of Electrical Engineering,Guangxi University,Nanning,Guangxi 530004)(2.Lecturer,Dept. of Physics and Information Science,Yulin Normal University,Yulin,Guangxi 537000) |
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| Abstract: | The system uses the technology of FFT fast Fourier to complete 20Hz-20kHz signal transformation from time domain to frequency domain;FPGA ＋ MSP430 MCU dual-core collaborative working mechanism is adopted,in which,FPGA as the core processor fulfill the transformation of FFT fast Fourier,including the sampling of the frequency of peak amplitude,frequency balance and processed signal reconstruction.The ultra-low power MSP430 microcontroller provides a friendly man-machine display interface;the two processors can be work together and give play to their own advantages,hence displaying better digital amplitude-frequency equalization.The debugging and measurement result indicates the effect is very good. |
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| Keywords: | FFT FPGA MOS FET |
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