三种非平稳信号时频分析的方法 窗口傅里叶变换、wigner分布和小波变换-Three non-stationary time-frequency analysis window Fourier transform, wigner distribution and wavelet transform

一种基于互局部化Wigner—Ville分布的瞬时频率估计-Based on each local Wigner-Ville distribution of the instantaneous frequency estimation