短时傅里叶变换

A two-dimensional phase unwrapping approach based on two-dimensional windowed Fourier transform (WFT) is proposed.

提出了一种基于二维短时傅里叶变换的干涉相位图解缠方法。

Measuring and analyzing technology based on variable-time-interval Fourier transform was dealt with for vehicle accelerating noise signal.

提出了基于变时基短时傅里叶变换来分析和处理时变信号的技术。

A Surface EMG signal identification method based on short time Fourier transform is presented in this paper.

基于短时傅里叶变换形成的三维谱图，采用数字图像处理的方法提取信号的特征。

STFT method has the window problem, which limits the vertical resolution, and cannot adapt the thickness transverse change of layers.

短时傅里叶变换技术存在窗口问题，限制了垂向分辨率，而且不能适应地层厚度的变化；

Results of analysing Doppler signals simulated using this method with the short time Fourier transform show agreement with the theoretical prediction.

利用短时傅里叶变换分析以这种方法合成的模拟多普勒信号，实验的结果和理论基本吻合。