摘要
提出了一种基于TMS320F2808的音频频率数字扫频仪的设计方法,详细介绍了由DSP(digital signal processor)产生正弦扫频信号和幅频特性测量的核心算法与实现过程。通过这种方案设计的扫频仪,能够测出被测带阻网络在20 Hz^20 kHz范围内的幅频特性,并将测量结果传送给PC机显示和存储。
This paper introduces a method of designing the digital audio-frequency sweeper based on DSP TMS320F2808.Detailed core algorithm and implementation process are presented here to generate swept sine wave and measure amplitude-frequency response characteristic.The sweeper designed by this scheme can be used to measure the band-stop network＇s amplitude-frequency response characteristic in the range of 20 Hz—20 kHz,and the final result can be transferred to computer to display.
出处
《实验技术与管理》
CAS
北大核心
2011年第2期54-57,共4页
Experimental Technology and Management
关键词
数字扫频仪
DSP
幅频特性
digital sweeper
DSP
amplitude-frequency response characteristic
