资源列表
Hilbert变换
- 模态分解傅里叶变换、小波变换的核心思想一致(From a theoretical consideration, we anticipate the HHT method to remain an empirical one for the foreseeable future. In other word, we can improve the operational efficiency and robustness)
PSNR
- This is a MATLAB code used to calculate the PSNR of a function.
wavelet
- 一维，小波变换，算法，对离散时间序列进行分析。(One dimension, wavelet transform and algorithm are used to analyze the discrete time series.)
夫琅禾费
- 夫琅禾费衍射的应用计算，能够进行夫琅禾费方孔衍射的计算和推演(Fraunhofer diffraction calculation)
Untitled2
- 对信号进行小波变换，从而达到对信号的分析与处理(The signal is transformed by wavelet to achieve the analysis and processing of the signal.)
wavelet
- 运用小波变换对图像进行去噪操作，具有较好的处理效果(Wavelet transform is used to denoise the image, and it has good processing effect.)
matlab小波变换程序
- 小波变换(wavelet transform，WT)是一种新的变换分析方法，它继承和发展了短时傅立叶变换局部化的思想，同时又克服了窗口大小不随频率变化等缺点，能够提供一个随频率改变的"时间-频率"窗口，是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征，能对时间(空间)频率的局部化分析，通过伸缩平移运算对信号(函数)逐步进行多尺度细化，最终达到高频处时间细分，低频处频率细分，能自动适应时频信号分析的要求，从而可聚焦到信号的任意细节，解决了
beamshape
- 对入射光进行相位调控，再经过傅里叶变换后进行输出，显示各个截面的光场分布(The incident light is regulated by phase, and then the output is carried out after Fourier transform, and the distribution of the light field of each section is displayed)
FFT
- matlab的FFT事例，关于FFT变换的一些事例，适合初学matlab的(Matlab's FFT case, some examples of FFT transformation, suitable for the initial study of MATLAB)
3971002xiaobo
- 小波变换分析，含有小波源程序和仿真主程序，适用于非平稳冲击振动信号的时频特性分析。(The wavelet transform analysis, which contains the small wave source program and the simulation main program, is suitable for the analysis of the time-frequency characteristic of the nonstationary shock vibra
Welch_cov_burg
- MATLAB代码经典功率谱估计，Welch法、协方差法、周期图、burg法及其对比，附完整注释(MATLAB code, classical power spectrum estimation, Welch method, covariance method, periodogram, Burg method and their comparison, with complete annotation.)
main
- 根据谐波叠加法生成PSD曲线对应的时域代表性样本(The representative samples of PSD curves corresponding to time domain are generated based on harmonic superposition method.)