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emd2003
- 用经验模式分解分解出固有模式函数，从而得出瞬时频率和包络，适合进行特征提取-using empirical mode decomposition decomposition patterns inherent function, thereby reaching and instantaneous frequency envelope, suitable for feature extraction
exa010501
- 给出两个chirp信号相加后，由瞬时频率定义求出的瞬时频率曲线，说明瞬时频率的不确切性；-The sum of two chirp signals are given, after the definition of instantaneous frequency derived from the instantaneous frequency curve, indicating lack of precision in the instantaneous frequency
emd
- 二维EMD的纹理分析及图像瞬时频率估计 的一片论文，欢迎下载-EMD two-dimensional image texture analysis and instantaneous frequency estimation of a paper, please download
HilbertTransform
- 通过希尔伯特变换获得地震记录的三瞬参数（瞬时相位，瞬时振幅，瞬时频率）。压缩包中的文件record-128-2048.dat为原始地震记录，128道，2048个采样点，2毫秒采样间隔。amp.dat pha.dat fre.dat分别为计算获得的瞬时振幅剖面，瞬时相位剖面，瞬时频率剖面，也都是128道 2048个点。其中的函数都可以很方面地移植到其他地方使用。-Obtained through the Hilbert transform instantaneous seismic records
ChirpLab
- 线调频小波路径追踪算法的程序，对研究瞬时频率估计有很大的参考价值。-Chirplet path tracing algorithm of the program, the study of instantaneous frequency is estimated that there is a great reference value.
haartest
- 这是关于小波特征变换，其中这里的提取特征分为几个一是零中心归一化瞬时幅度的频谱最大值，二是包络平方值的两倍包络均值平方之差。三是瞬时频率的方差。四是大小波系数的方差，五是信号的四阶累积量之比。-This is the wavelet transform features, which extract features here is divided into several one is zero center normalized spectral maximum of instantaneo
powerQualityHHT
- 电能质量扰动信号信号通过hilbert变换得到瞬时频率，瞬时幅值，hilbert谱，边际谱等重要特征，从而实现特征提取。-Power quality disturbance signals are obtained by hilbert transform to obtain instantaneous frequency, instantaneous amplitude, hilbert spectrum, marginal spectrum and other important featu
HHT
- HHT变换实现模态分解和瞬时频率计算，有实例，可用于桥梁监测的损伤识别。-HHT
Instantaneous
- 求地震数据的瞬时频率，瞬时振幅，瞬时相位的程序，对研究地球物理三瞬的同学很有帮助-The instantaneous frequency, instantaneous amplitude, and instantaneous phase of the seismic data are helpful for the study of geophysics.
instfreq
- 亲自测试 完全可以运行且有效，求瞬时频率，各个版本的matlab 都ok(Test yourself Can be run completely and effectively)
FSSTn-master
- 一种新的瞬时频率估计方法，用到了同步压缩短时傅里叶变换的高阶形式(This MATLAB package is a collection of scr ipts allowing to generate figures in the paper [1]. This paper puts forward a generalization of the short-time Fourier-based Synchrosqueezing Transform using a new local esti