基于虚拟仪器技术的信号采集与分析系统的研究  

Based on the virtual instrument technology of signal acquisition and analysis system is studied

作　　者：宋青[1] 

机构地区：[1]兰州交通大学数理与软件工程学院,甘肃兰州730070

出　　处：《自动化与仪器仪表》2012年第1期1-2,共2页Automation & Instrumentation

摘　　要：应用LabVIEW开发平台,设计了基于声卡的虚拟信号采集与分析系统,并对信号采集性能进行了实验研究。构建的信号采集与分析系统具有信号采集、分析、波形显示、存储等功能。所设计的采集软件操作方便、交互性好,并且可以根据用户的需求进行功能扩充,为低成本下构建数据采集系统提供了一种思路,可以应用到语音识别、环境噪声监测和实验室测量等多种领域,应用前景广阔。In this paper,we used LabVIEW development platform,designed a virtual signal acquisition and analysis system based on the soundcard.In addition we studied the signal acquisition performance of it.This system has functions of signal acquisition,analysis,waveform display and storage.It is easy to use with good interface,and function appending is available on user requirement.It offers a kind of DAQ solution with low cost.It has broad application prospect,can be extended to the field of speech recognition,ambient noise monitoring and laboratory measurement etc.

关 键 词：虚拟仪器 声卡数据采集 信号分析 LABVIEW 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]