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tfristft
- 令x(n)=5exp(j*0.15*n*n)+6exp(j*300n-j*0.15*n*n) ,w(n)为高斯窗函数。试用matlab软件,取不同长度的窗函数,分别求x(n)离散短时傅里叶变换,并进行信号重构。-ORDER x (n) = 5exp (j* 0.15* n* n)+6exp (j* 300n-j* 0.15* n* n), w (n) for the Gaussian window function. Trial Matlab software, take different l
st
- S变换的源代码,实现对各种信号的频谱分析。该方法优越于短时傅里叶变换。-S transform source code, and the analysis of the spectrum of various signals. This method is superior to the short time Fourier transform.
ITD
- 很经典的时频分析论文,从短时傅里叶变换出发,提出了intrinsic time-scale decomposition方法。-Classic time-frequency analysis papers
Real-Time-Speech-Pitch-Shifting
- 实时处理声音降调 matlab源代码 短时傅里叶变换-Real-Time Speech Pitch Shifting
stft
- 对信号加窗,进行短时傅里叶变换,输出一个结构组,包含时间和频谱幅度-Signal windowed short time Fourier transform, and output a structure that contains the time and spectral amplitude
stft
- 短时傅里叶变换程序,对不同窗函数、不同窗长下的时频域谱进行分析。-Short time Fourier transform procedures, different window function, different window length under the time-frequency domain spectral analysis.
tfrstft
- 计算信号的短时傅里叶变换,对信号进行时频分析-Calculate signal short-time Fourier transform, the signal time-frequency analysis
sg
- 这是一个短时傅里叶变换的程序,特别详细,超级好用-This is a short-time Fourier transform procedure, particularly detailed, super-easy
time-and-frequency-characteristics
- 语音信号的时域和频域特性,包括录制、计算短时能量、短时过零率、短时傅里叶变换、加矩形窗等步骤-Speech signal in time domain and frequency domain characteristics, including recording, computing time energy, short-time zero-crossing rate, short-time Fourier transform, rectangular windows and other s
STFTspectral
- 语音信号短时傅里叶变换后,然后进行短时功率谱的计算-Speech signal short-time Fourier transform, and the power spectrum calculated for a short time
STFT
- 短时傅里叶变换的FPGA实现零重复度使用了fft的IP核设计-When the Fourier transform of the FPGA to achieve zero repeatability using fft IP core design
STFTDifference
- 短时傅里叶变换可以用差分模式来实现,对书上的运算式做了稍许的改变。改变-计算差分序列的第一列数据时用的是第一列的元素减去当前行的最后一列元素。原算法中采用的是第一列元素减去下一行第二列元素。原算法加窗之后结果比较好,不加窗时结果误差很大,而改变之后的算法不加窗效果依然很好。-Short time Fourier transform can be used to achieve the differential mode of expression on the book made a sligh
STFT
- 计算信号的短时傅里叶变换。用法见函数说明。-Short-time Fourier transform calculation signals. Usage See function descr iption.
SHIPINFENXI
- 各种类型的时频分析,包括科恩,加布,短时傅里叶变换-Various types of time-frequency analysis, including Cohen, Gabe, short time Fourier transform
STFT
- 地震资料解释 时频分析 短时傅里叶变换-Short time Fourier transform
02
- 2.1 傅里叶变换 2.1.1 经典傅里叶变换 2.1.2 傅里叶变换的基本性质 2.1.3 快速傅里叶变换 2.1.4 短时傅里叶变换 2.2 小波分析与多分辨率分析的历史 2.3 小波分析与傅里叶变换的对比 2.4 小波变换 2.4.1 连续小波变换 2.4.2 离散小波变换 2.4.3 高维小波连续变换 2.5 常用小波基函数 2.5.1 小波函数 2.5.2 小波函数系 2.5.3 复数小波 2.6 构造紧支撑正常小波基 2
lmd
- 直方图提取函数,用于人脸识别中,输入一幅图像,函数内部对输入图像做短时傅里叶变换,得到四幅幅度图,再求四幅图的直方图特征,合并后输出-Histogram extraction functions for face recognition, the input image, the input image inside the function to do short-time Fourier transform, the four magnitude diagram, and then seek
fun_stft
- 短时傅里叶变换实用程序,仅仅用于学习交流使用-Short-Time Fourier Transformation
Demo_7_STFT
- 短时傅里叶变换的例子,matlab语言,简洁实用-shot time Fourier transform using matlab
code
- matlab 的短时傅里叶变换代码, STFT, 简洁实用-code of STFT with matlab