登录
首页 » matlab » stft

stft

于 2021-01-14 发布 文件大小:18KB
0 308
下载积分: 1 下载次数: 820

代码说明:

  本例介绍了一个利用MATLAB仿真短时傅里叶变换的实例,初学者可以根据此例子来了解短时傅里叶变化的过程,通过仿真图形分析也可理解短时傅里叶变换的含义。(This example describes a short time Fourier transform using MATLAB simulation examples, beginners can understand this example of short-time Fourier transform of the process, through simulation analysis is also understandable graphic short time Fourier transform meaning.)

文件列表:


stft.m,590,2010-05-26
新建 文本文档 (4).txt,590,2010-05-26

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • rcosflt_Jamming
    1、根据干扰总功率要求,在PSK调制信号带宽内产生单音干扰和多音干扰信号,并叠加到产生的信号源上。 2、将收到干扰的信号进行频率搬移到基带,然后通过匹配滤波器以及解调过程得到信息,统计误码率并与真实信息的解调误码率进行对比,评估音频干扰对PSK信号的干扰效果。 (1, according to the total power requirement of interference generated tone signal interference and multi-tone interference in the PSK modulated signal bandwidth, and superimposed on the signal generated by the source. 2, the received interference signal to a baseband frequency shift, and the information obtained by the matched filter and a demodulation process, statistical error rate BER and the true information demodulation comparison, evaluation of the PSK signal, audio interference interference effects.)
    2014-05-03 13:20:55下载
    积分:1
  • finalapplication
    这是从外国网站下载下来的,关于图像检索的matlab程序,带有界面,和实验用图像。程序运行具体说明在Instructions文件中。(This is a foreign website down on the Matlab image retrieval procedures, interface with, and the experimental images. Procedures specified in the Instructions document.)
    2007-07-09 16:22:56下载
    积分:1
  • expriment
    设定一个信息码串,产生常见的编码如单极性非归零、双极性非归零、单极性归零、双极性归零、AMI、HDB3码的时域波形;(Set up an information code string to produce a common code such as the unipolar NRZ, bipolar, non-zero, zero unipolar, bipolar zero, AMI, HDB3 code of the time-domain waveform )
    2009-12-10 22:57:27下载
    积分:1
  • apf_p_q_3p_3l
    基于pq谐波电流检测的三相三线制有源滤波器模型。(Pq harmonic current detection based on three-phase three-wire active filter model.)
    2011-10-02 18:04:01下载
    积分:1
  • img-reg
    对图像实现骨架化操作、提取边界、执行图像开运算度、增强图像对比度并提取文本图像中的某些字符对象。(Implementation of the image skeleton operation, extraction of the border, the implementation of open computing degree images to enhance image contrast and to extract the text of some of the characters in the image object。)
    2009-03-13 22:41:54下载
    积分:1
  • kdica.tar
    kICA implementation
    2009-03-23 18:43:26下载
    积分:1
  • vioce-signal-processing
    录制自己的一段语音,时间控制在15秒到30秒左右;利用wavread函数对自己的语音进行采样,记住采样频率。 (1)画出原始语音信号的时域波形,而后以1秒为间隔,求出每秒数据的功率谱。 (2)根据语音信号特点,分别设计FIR及IIR滤波器,分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波,画出滤波后时域波形。用sound函数回放语音信号。 (3)求出特征频段语音信号随时间变化的曲线(每间隔0.05秒求一次功率谱)。 (Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))
    2011-06-01 22:29:27下载
    积分:1
  • ACO
    aco-ga for feature selection
    2020-11-23 09:09:34下载
    积分:1
  • Numerical-Analysis-Using-MATLAB-and-Excel---Steve
    Numerical Analysis Using MATLAB and Excel - Steven T. Karris
    2013-07-24 22:56:25下载
    积分:1
  • jun2
    this is good codes from a typical book
    2007-04-20 18:02:47下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载