摘要
基于声卡的数字信号处理技术和虚拟仪器技术,通过在LabVIEW环境下对声卡进行编程,设计了一个廉价的虚拟示波器系统,该设计方案具有界面友好、扩充性强及动态特性稳定可靠等诸多优点.实验仿真表明,该系统能够正确地采集声卡设计频率范围内的信号,实现了示波器的测量和频谱分析功能.
Based on sound card digital signal processor technology and virtual instrument technology, this paper presents a low cheap solution of sound card based virtual oscilloscope, with its advantages of friendly interface, strong expansibility, wide dynamic range and steady performance. By programming sound card in LabVIEW, a virtual oscilloscope system is de signed, the system can acquire signals in the frequency range designed for sound Card accurately, and has the function of measurement and spectral analysis.
出处
《陕西科技大学学报（自然科学版）》
2009年第2期92-95,103,共5页
Journal of Shaanxi University of Science & Technology
基金
西安工程大学校管科研基金资助项目(2008XG18)
