CAJ | 학술논문

为满足测试测量研究过程中对非平稳信号特征的便捷提取，本文利用时频分析技术并基于LabWin-dows／CVI设计了时频分析软件系统，整个系统采用模块化的编程思想，用C语言实现STFT算法、Morlet小波算法和Wigner算法，使得软件具有良好的通用性和可扩展性。
위만족측시측량연구과정중대비평은신호특정적편첩제취，본문이용시빈분석기술병기우LabWin-dows／CVI설계료시빈분석연건계통，정개계통채용모괴화적편정사상，용C어언실현STFT산법、Morlet소파산법화Wigner산법，사득연건구유량호적통용성화가확전성。
In this thesis , the software system of time-frequency based on LabWindows/CVI is used to capture the non -stationary signal characteristics in measurement searching practice .The whole system is implemented by modular programming ideas , and uses C language to implement STFT algorithm , Morlet wavelet algorithm and Wigner algorithm .All of this promotes the versatility and expansi-bility of system .