摘要
针对信号实际测试过程中,数据采集和传输环节都会引入噪声并向后传递,使得获取的数据除了我们所关心的被测信号以外,还会有各种类型的噪声的问题,运用虚拟仪器的设计思想,利用LabVIEW集成开发环境和MATLAB软件,采用NI USB-6009多功能数据采集卡,根据小波分析对信号进行消噪处理的原理,设计了一款虚拟小波信号消噪仪;该虚拟仪器可实现对信号的采集、保存,利用小波变换对信号进行消噪处理,并可动态显示消噪过程、消噪结果等,在实际工程中有很好的应用前景。
In allusion to the signal actual test process, data acquisition and transmission tache can bring noise and hand on backward. The data we get also includes all kinds of noises except the measured signal we are concerned. In this paper, we exert the design idea of virtual instrument, utilize the LabVIEW and MATLAB software, use the NI USB-6009 multifunction data acquisition （DAQ） modules and base on wavelet de-noising principle, design a virtual wavelet de-noising instrument. The instrument can acquire and storage the signal, utilize the wavelet transform to danoise and display the real-time de-noising process and de-noising result. It has well application foreground in actual project.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第4期794-796,共3页
Computer Measurement &Control
基金
黑龙江科技学院引进高层次人才科研启动基金项目(07-21)
