基于虚拟仪器技术的信号测量分析仪的设计

针对传统仪器功能单一、传统编程语言的不足,采用计算机多线程技术、虚拟仪器技术等,根据信号自身的特点,结合信号处理方法,利用LabVIEW软件设计了虚拟信号测量分析仪.该分析仪可以对信号进行仿真、采集、多种时域参数的测量、小波降嗓和频谱分析等功能,还可以实现波形的存储、回放.另外,该系统具有界面友好、扩展性强的优点,设计者可以通过软件改变系统功能,使用方便直观.经实践证明本软件达到良好的效果,可以进行推广.

Design of Signal Measuring and Analyzing Based on Virtual Instrument Technology

In view of the single function of the traditional instrument and the deficiencies of the traditional programming language, based on the multithreading teehnolcgy and virtual instrument teehnolcgy, signal eharaeteristics and the methods of signal processing, the visual signal measuring and analyzing analyzer is dasigned with LabVIEW. The signal analyzer can realize the measurement of the parameters in time domain, the wavelet de - noises and frequency analysis and so on, also record data and return data play back. In addition, this systern has better interlace which can he extended and heightened to increase functions as designer required in efficiency if soft - ware system is modified, Users can learn the functions of signal proceas visual. The practice shows that this software has good effect and can he extended.