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short_time_Fourier_transform_of_windowed
- STFT 实现短时加窗 傅里叶 变换 分析 可用于跳频时频分析-STFT to achieve short time Fourier transform of windowed time-frequency analysis can be used for frequency hopping
dspstfft_daq
- 语音信号处理 短时间傅里叶变换 STFT 使用汉明窗 -Speech Signal Processing
duanshifulliye
- 短时傅里叶的变换,在时域中表示,画出其等高图,三维图-Short-time Fourier transformation, said in the time domain, draw the contour map, three dimensional figure, and so on
pinpu
- 在快速傅里叶变换大的基础上以对信号进行短时分析,能画出三维瀑布图。-In the fast Fourier transform big on the basis of the signal is short analysis, can draw 3 d waterfall diagram
tftb
- 包含关于各种傅里叶变换,短时傅里叶变换等等。有数据,例子可供参考(It includes all kinds of Fourier transform, short time Fourier transform and so on. There are data, examples for reference)
Re_ project
- 连续小波变换,傅里叶变换,短时傅里叶变换等(Continuous wavelet transform, Fourier transform, short time Fourier transform, etc.)
第5章程序
- DFT的扩展 包括短时傅里叶变换 细化FFT CZT 参考北航的85个实用案例精讲的第五章,书上的例子仿真代码。(It is very good button source code integrityCode based on MATLAB simulation)
STFT
- 实现短时傅里叶变换的源代码,其中参数可以自行更改(the code that can realize STFT .)
STFT
- 短时傅里叶变换实现的线性调频信号的时频分布(Time frequency distribution of LFM signals realized by short time Fourier transform)
Gaborandstft
- 一个短时傅里叶变换程序,内含说明,便于初学者应用(A short time Fourier transform program, containing instructions, for beginners.)
STFT
- 内含详细中文说明的短时傅里叶变换程序,便于初学者应用(The short time Fourier transform program with detailed Chinese instructions is convenient for beginners.)
建立地质模型
- 建立地质模型,并进行频谱分析,还有短时傅里叶变换。(A geological model is established and the spectrum analysis is carried out And the short time Fourier transform.)
gauss
- 利用Matlab语言编写,高斯窗实现,进行滤波处理,以及用于后续短时傅里叶变换(It is written in Matlab language, implemented by Gauss window, filtered, and used for short time Fourier transform.)
stft
- 利用Matlab编写的短时傅里叶变换,将时间域信号变换到时频域进行分析(The short-time Fourier transform written in Matlab is used to transform the time domain signal into time-frequency domain.)
语音信号处理实验
- 对语音信号处理的基本操作,求功率谱 短时过零 短时傅里叶变换 分帧 加窗等等(The basic processing of speech signal with MATLAB)
testTfrstft
- 建立简单的层状模型,共三层,褶积合成地震记录,使得数据随机缺失30%,分别用傅里叶变换、短时傅里叶变换、s变换、小波变换对地震数据进行时频分析。(A simple layered model with three layers and convolution synthetic seismogram is established. The data are randomly missing by 30%. Time-frequency analysis of seismic data is ca
时频分析工具箱
- 法国中央科学研究院和美国RICE大学共同开发了时频分析工具箱(matlab emd) 是一款非常好用的时频分析计算工具,它是分析时变非平稳信号的有力工具,matlab 时频分析工具箱提供了时间域与频率域的联合分布信息,清楚地描述了信号频率随时间变化的关系。 其中主要含有四种函数: 信号产生函数,可以产生不停类型的信号,如Chirp信号,bpsk信号等。 时频分析函数,可以计算线性、Cohen类、仿射类非线性分析值函数,例如短时傅里叶变换(STFT),Gabor变换,谱图,Wigner
SlidingDFT
- 滑动DFT实现短时傅里叶变换的matlab代码,包括正变换和逆变换,可极大提高时频分析的计算效率(Sliding DFT to realize short-time Fourier transform matlab code, including positive and inverse transforms, can greatly improve the efficiency of time-frequency analysis.)
lfm
- 生成一个线性调频信号起始频率20mhz到60mhz'带宽为40mhz'的lfm 并进行短时傅里叶变换(Generate a LFM with a starting frequency of 20 MHz to 60 mhz'bandwidth of 40 mhz' for LFM signal Short-time Fourier transform is performed.)
MATLAB时频分析
- 短时傅里叶变换,short-time fourier transformation,有时也叫加窗傅里叶变换,时间窗口使得信号只在某一小区间内有效,这就避免了传统的傅里叶变换在时频局部表达能力上的不足,使得傅里叶变换有了局部定位的能力。