摘要
为了实现对电路网络的幅频特性进行自动实时测量,设计了一种基于MSP430单片机的自动幅频特性测试系统。单片机根据按键设置产生扫频信号并完成被测电路输出信号的幅度测量,将幅度和频率经串口通信送入Matlab软件中,设计完成GUI平台实现了电路幅频特性响应曲线的实时绘制。测试结果表明该系统性能良好,交互性好且实时性强。
To realize automatic real-time measurement of amplitude-frequency characteristics for circuit networks,an auto-test system based on MSP430 for amplitude-frequency characteristics is designed. MCU generates swept-frequency signals according to the keypad settings,and completes the amplitude measurement of the tested circuit output signals. The amplitude and frequency are transmitted to Matlab software through serial communication. The real-time drawing of amplitude-frequency characteristic re-sponse curve is realized by GUI platform. Test results show that the system has the characteristics of high performance,good in-teractivity and well real-time.
出处
《现代电子技术》
北大核心
2015年第11期129-131,136,共4页
Modern Electronics Technique
基金
西安邮电大学青年教师科研基金项目(101-0493)
