基于TMS320F2808的音频频率数字扫频仪  

Digital audio-frequency sweeper based on TMS320F2808

作　　者：何苏勤[1] 吕咸亮[1] 刘勇[1] 王小庆[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《实验技术与管理》2011年第2期54-57,共4页Experimental Technology and Management

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.

关 键 词：数字扫频仪 DSP 幅频特性 

分 类 号：TN914[电子电信—通信与信息系统]