摘要
随着微型计算机、单片机尤其是可编程片上系统(SOPC)的发展与应用,本文提出一种基于SOPC的采用快速傅立叶变换(FFT)算法,计算出信号基波及各种谐波的电压有效值,从而根据失真度计算公式计算失真度的测量方法,进一步阐述并分析该方案的硬件实现和软件实现。系统经实际运行,性能稳定,有一定的实用价值。
As the development of micro-computer and single-chip,especially the system onaprogrammable chip(SOPC),The paper advance a method of measure the distortion of sound signal,which is using the SOPC chip to carry out the FFT to get the magnitude of all kinds of frequency then using the formula to calculate the distortion. The paper expounds how to carry out this measure method in hardware and software. The system is experimentally proved the features of stability and the good value of application.
出处
《微计算机信息》
北大核心
2008年第8期29-31,共3页
Control & Automation
基金
多现场总线的多接口网桥的设计与研究颁发部门:北京市教育委员会编号:km200611417008
