基于PC机声卡的虚拟小波信号提取仪设计

The design of virtual wavelet noise eliminator based on LabVIEW and sound card

本文提出一种基于PC机声卡的虚拟小波信号提取仪的设计方法,结合LABVIEW软件自身开发的小波分析包,对含有高频噪声的微弱信号进行提取处理,并给出仿真结果。该设计体现了小波分析的优点和PC机声卡结合LabVIEW软件的灵活性和实用价值。

In this paper,a design method of virtual wavelet noise eliminator is brought forward based on LabVIEW technology and sound card of PC.By using the tool of virtual wavelet of LabVIEW,high-frequency noise which is covered in the puniness signal is eliminated,and the result can be directly shown in the emulating process.The design integrates the advantage of wavelet analysis、sound card of PC and LabVIEW technology,and has practical value.