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stft
一维向量的离散短时Fourier变换函数。函数名:stft,输入:要处理的一维数组,加窗:矩形窗,窗口宽度:20。(One-dimensional vector of discrete short-time Fourier transform function. Function name: stft, enter: To deal with the one-dimensional array, plus a window: rectangular windows, window width: 20.)
- 2008-04-16 15:42:25下载
- 积分:1
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【全美经典】小波十讲(Ingrid Daubechies 着)
《小波十讲(修订版)》主要内容简介:原书《小波十讲》(ten lectures on wavelets)是一本世界范围公认的经典学术名著,是当代数学著作中一本影响巨大的绝妙好书。(text book for wavelet analysis)
- 2018-04-07 16:47:09下载
- 积分:1
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应用Matlab对语音信号进行频谱分析及滤波完整代码
用MATLAB编程实现实现滤波,与数字信号处理相关(Implementing filtering)
- 2020-06-24 18:00:02下载
- 积分:1
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imagereconstruction
基于小波和插值的超分辨率图像重建算法,通过插值后将小波分解应用于图像中,再通过逆变换得到重构图像(And interpolation based on wavelet super-resolution image reconstruction algorithm by interpolating the image after the wavelet decomposition used, then the reconstructed image through the inverse transform)
- 2011-01-06 11:19:58下载
- 积分:1
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Matlabwaveenergy
对信号f(x)进行三层小波变换,得到小波系数d1,d2,d3和逼近系数a3,我想求出各个频率段的能量(能量=小波系数的平方和),很不错的应用程序(The signal f (x) for three wavelet transform, wavelet coefficients d1, d2, d3 and approximation coefficients a3, I would like to find the energy of each frequency band (energy = sum of squared wavelet coefficients), very good application)
- 2011-11-01 16:16:22下载
- 积分:1
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untitled
数字基带传输基带信号,指未经调制的信号。这些信号的特征是其频谱从零频或很低频率开始,占据较宽的频带。
基带信号在传输前,必须经过一些处理或者某些变换(如码型变换、波形和频谱变换)才能送入信道中传输。处理或变换的目的是使信号的特性与信道的传输特性相匹配。
数字基带信号是消息代码的波形表示。表示形式有多种,有单极性、双极性波形,归零和非归零波形,差分波形、多电平波形之分,各自有不同的特点。
研究数字基带信号通过加性高斯白噪声信道的传输,并且假设信道除了叠加高斯噪声外,不会对信号产生其他失真。(matlabSimulation(pulse amplitude modulation) modulation signal in AWGN (additive white Gaussian noise AWGN (Additive White Gaussian Noise)) under the channel bit error rate and bit error rate performance, and compared with the theoretical value.)
- 2018-05-08 18:47:36下载
- 积分:1
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Wavelet-signal-
小波信号分解与重构的Matlab程序,程序里边涉及卷积的直接调用的Matlab的conv()函数。(Wavelet signal decomposition and reconstruction in Matlab,Program inside invoked directly related to the convolution of Matlab conv () function.)
- 2011-11-04 21:32:13下载
- 积分:1
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Tetrolet_Transform
Tetrolet变换的原代码,一种稀疏表示的小波变换,由haar变换改进得到(Tetrolet transform the original code, a sparse representation of the wavelet transform, haar transform improved)
- 2012-11-11 10:27:07下载
- 积分:1
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electric1
利用小波变换实现对电能质量检测的算法实现(using wavelet transform to detect power quality algorithm)
- 2007-01-17 16:24:47下载
- 积分:1
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Wavelet
小波包变换分析信号的MATLAB程序,可用于提取故障特征向量(Wavelet packet transform analysis of signals in MATLAB procedures, can be used to extract fault feature vector)
- 2020-07-01 05:40:01下载
- 积分:1