搜索资源列表
MATLAB录入语音做出时频图
- 在matlab中录入一段声音,并自动显示时域频域图
二值掩模法时行声音去燥
- 对吵杂环境下的声音先进行时-频转换,从而得到音频文件的看起来就像图像的时频表示,然后再使用二值掩模算法去掉我们不需要的燥音,最后得到理想状态下基本无燥音的时频图
Gabor.rar
- 一篇关于基于Gabor谱方法的跳频信号时频分析.pdf的学术论文,很有用哦,An article on methods based on Gabor spectrum frequency-hopping signal time-frequency analysis. Pdf in academic theses, useful Oh
stestandst
- S变换的matlab源码,并应用几个信号作为例子来说明怎么使用s变换以及s变换可以用来做些什么事情。s变换是时频分析领域中一个较新的内容,现在在信号处理,地震勘探,语音识别等领域都开始了对它的应用研究,是目前的一个热点。-S transform matlab source, and apply some signal as an example to illustrate how to use s and s transform transform can be used to do thing
time-frequency
- 基于快速折叠算法和时频分析的LPI跳频信号截获.pdf-Based on fast folding algorithm and time-frequency analysis of LPI signal intercepted frequency-hopping. Pdf
hsa
- 对信号进行EMD分解并绘制希尔伯特时频谱的程序,自己做毕业设计编写的- EMD decomposition of signals and time-frequency spectrum of the Hilbert mapping procedures, the design of their own graduates prepared
tfa
- 自适应时频频分析方法,具有界面操作,参数选择等功能,可以自由调入信号获得相应的自适应视频分析方法结果。-Adaptive time frequency analysis method,It can be used to give TFR of signal.
8个OFDM-Chirp波形的时频域图及自(互)模糊函数图
- 8个正交OFDM-Chirp分集波形的时域频域图,自模糊函数图和互模糊函数图,文件夹里面有说明文档及参考文献。(Eight orthogonal OFDM-Chirp diverse waveforms, with its time-domain plot and spectrogram, and self-ambiguity functions and cross-ambiguity functions. references are provided.)
time_frequency_analysis
- 基于实测信号,进行时频分析,同时了解时域频域特征(Based on the measured signal, time-frequency analysis is carried out, and time domain and frequency domain characteristics are also understood.)
运用matlab画出瑞利波的频散曲线
- 在前人工作的基础上对三层层状介质的瑞利波频散曲线进行了正演模拟研究,对假定的几组典型模型参数的频散曲线进行了认真分析。通过分析可知,各频散曲线之间是互不相交的,从而对此问题有了一个更清晰的认识。指出当低速软弱夹层存在时频散曲线的特点,并根据分析结果,说明”之“字形频散曲线的形成机理。(On the basis of previous work, the Rayleigh wave dispersion curves of three layered media are studied by fo
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
短时傅里叶变换matlab
- matlab 时频分析工具箱实现短时傅里叶变换(Realization of short time Fourier transform by MATLAB time frequency analysis toolbox)
add_noise_pinyutu
- 进行纯净信号和加噪信号的时频域显示,及其包络图显示,并计算加噪信号的信噪比、互相关系数、峭度值,对信号进行离散余弦变换。(The time-frequency domain display of pure signal and noise-added signal and its envelope diagram display are carried out, and the signal-to-noise ratio, correlation coefficient and kurtosis
gst
- 广义S变换,用于时频分析,是S的改进形式(Generalized S-transform, used in time-frequency analysis, is an improved form of S)
Untitled_jian
- 对信号数字文件进行时频图绘制并进行非线性分析(The time, frequency-domain graph of signal digital file is drawn and non - linear analysis is performed)
xwstritb
- 用于时频计算,输出时频图。安装后能够顺利运行,操作。(For time-frequency calculation, output time-frequency diagram)
轴承信号双谱
- 对简单信号进行双谱分析,并输出信号的时频图,双谱图,以及其三维图(Double row analysis of simple signals)
Time-Frequency Toolbox
- Time Frequency Toolbox matlab时频分析工具箱,里面有各种时频分析函数,用matlab实现的,小波变换,Gabor变化,短时傅里叶变换等等(AF Ambiguity function AR Auto-regressive (filter or model) ASK Amplitude shift keyed signal BJD Born-Jordan distribution BPSK Binary phase shift keyed signal BUD
PTFR
- 利用参数化时频分析方法绘制时频曲线的matlab程序(Matlab program of drawing time-frequency curve by parametric time-frequency analysis method)
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。