数据重采样技术在振动信号分析中的应用与试验

摘要

通过阐述重采样的基本原理以及实现重采样的数学算法，为重采样的实现提供了理论的基础。通过实验仿真，对比重采样前后的功率谱震动图像以及FFT功率谱图像和阶次功率谱图像，验证了阶次分析的可行性和优越性，对非平稳振动信号的处理分析有着极其重要的意义。%The basic principle of resampling andthe realizing of the resampling mathematical algorithm are expatiated ,which provides the theoretical foundation for resampling.Through the simulation of the experiment, contrasting the power spectral image which before and after resampling, contrasting the FFT power spectrum image and the order power spectrum images.the feasibility and superiorityin the order analysis are verified.The order analysis for the processing and analysis of non-stationary vibration signals has very important significance .