基于虚拟仪器的信号频域分析与处理系统的设计与实现

Design and Realization of a Signal Frequency-field Analysis and Processing System Based on Virtual Instrument

虚拟仪器的迅速发展,使得计算机控制的模块化仪器系统得到了广泛的认同与应用。本文建立了LabWindows/CVI和MATLAB的接口,实现了两者的混合编程,在此基础上设计了一个实用的信号采集、分析与处理系统,通过软、硬件技术结合,实现了对实际模拟信号的采集、分析与处理。为了节约系统开发时间和开发难度,在系统开发过程中使用了模块化的思想。

The quickly development of Virtual Instrument makes the modular instrument, which is on computer control, is accepted and applied widely. The meet between the LabWindows / CVI and MATLAB is build, so the mix-program between the two software is realized, on this basis a data acquisition system and frequency-field signal processing system is presented. Through the technical combination of hardware and software, the signal acquisition and processing of various kinds of parameters from multiple analog data are realized. In order to save the time of exploring the system and reduce the difficulties, the modular programming technology is used.