摘要
本文根据Fourier变换的存在条件,利用窗函数导出了自相关函数的Fourier变换。得到了一种寻求平稳随机激励频率成分信息的方法。
Based on the existence conditions of Fourier transform, the paper derives Fourier transform of autocorrelation functions by window functions. And the method of getting the frequency components of stationary random excitation is realized.
关键词
窗函数
平稳随机振动
FOURIER变换
Fourier transform
window functions
Stationary random vibration
frequency component
