基于FPGA的数字幅频均衡器的设计  

The Design of Digital Amplitude-Frequency Equalizer Based on FPGA

作　　者：闭吕庆[1,2] 

机构地区：[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

出　　处：《玉林师范学院学报》2010年第5期49-51,共3页Journal of Yulin Normal University

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.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.

关 键 词：FFT FPGA MOS场效应管 

分 类 号：G642[文化科学—高等教育学]