Description: 小波变换的一级分解过程是，原始信号分别进行低通、高通滤波，再分别进行二元下抽样，就得到低频、高频（也称为平均、细节）两部分系数；而多级分解则是对上一级分解得到的低频系数再进行小波分解，是一个递归过程。-Wavelet decomposition level is, the original signal were low-pass, high pass filter, and then carried out under the binary sample, we obtained low-frequency, high-frequency (also known as the average, details) coefficient of two parts and multi-level decomposition it is the decomposition level to be low-frequency coefficients further wavelet decomposition is a recursive process. Platform: |
Size: 7420928 |
Author:王正 |
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Description: 代码包括利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理等-Code including the use of Butterworth (Butterworth) low pass filter for noise by smoothing the images deal with the use of Butterworth (Butterworth) high-pass filter for sharpening images, such as treatment Platform: |
Size: 10240 |
Author:吕彦廷 |
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Description: 心电信号加入0.5Hz的基线漂移，通过0.5Hz高通滤波器，滤波后的波形与原波形的对比 ，滤波器特性曲线分析；信号加入50Hz工频漂移，通过50Hz陷波器，滤波后的波形与原波形的对比 ，滤波器特性曲线分析-ECG baseline drift by adding 0.5Hz, 0.5Hz through a high-pass filter, filtering of the waveform after the comparison with the original waveform, filter characteristic curve analysis adding 50Hz frequency signal drift, through the 50Hz notch filter, after filtering waveform compared with the original waveform, filter characteristic curve analysis Platform: |
Size: 4096 |
Author:孙川川 |
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Description: Image enhancement in frequency domain using Fourier center frequency, Gaussian lowpass filter, Low pass filter, high pass filter. Image restoration using medean filter, weiner filter with noise generator such as Gaussian noise, Salt and Pepper noise Platform: |
Size: 1035264 |
Author:dieu |
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Description: 对录音信号集 中的某一语音，利用BATLAB设计一美尔例谱算法，并实现。
取信号集 中的一个语音信号：“xxxxxx”，将它作为输入的语音信号来为设计一个美尔倒谱算法，在该算法中，主要设计了以下环节：
1.读入一个语音信号；2.对这个信号归一化；3.对归一化的信号进行加窗处理（这里的矩形窗长度必须为257，重帧长64）；4.进行预加重处理，即通过一个高通滤波器： ；5进行512点的FFT；6.分别取模平方得到功率谱；7.在设计的mel滤波器组中，我采用了25个带通滤波器；8.将得到的功率谱信号通过mel滤波器组，得到相应的25个功率值；9.对这些功率值取自然对数；10.对这些值取离散作弦变换；11.将得到的值去掉直流分量，取其它值作为MFCC参数。
-Concentrated on recording a voice signal, using BATLAB designed Mayer cases spectral algorithm, and implementation.
Get a voice signal signal focus: "xxxxxx", will it as input for the design of a voice signal to Mel Cepstrum algorithm in the algorithm, the main design of the following links:
1. Read a speech signal 2. On the signal normalized 3. Of the normalized windowed signal processing (here, rectangular window length must be 257, re-frame size 64) 4. For Pre-emphasis processing through a high-pass filter: 5 for 512 points of FFT 6. modulo square were obtained spectrum 7. in the design of mel filter banks, I use a 25 band-pass filter 8 . will be the power spectrum signal by mel filter bank, corresponding to the 25 power values 9. on the power to take the natural logarithm value 10. to take these values as strings of discrete transform 11. will be of value to out DC component, to take other values as MFCC parameters. Platform: |
Size: 13312 |
Author:赵欣 |
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Description: matlab m文件运用5种不同的梯度增强法进行图像锐化和图像的高通滤波和掩模处理-matlab m files using five different gradient method for image enhancement and image sharpening high-pass filter and mask handling Platform: |
Size: 1024 |
Author:米线 |
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Description: 三维数字滤波器中的理想高通滤波器的matlab仿真及其结果-3 d digital filters in an ideal high-pass filter matlab simulation and the result Platform: |
Size: 14336 |
Author:蝶荷枫雪 |
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Description: 运用汉明窗设计的I型数字高通滤波器matlab代码。通过修改其中参数能得到不同性能的高通滤波器。-Using Hamming window design digital high-pass filter matlab code. Modify parameters to get the performance of different high-pass filter. Platform: |
Size: 3072 |
Author:谢诺 |
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Description: 高通滤波的matlab实现，用过之后感觉还可以，推荐下载。第一次上传，是否合要求请站长及各位大侠指教。-An algorithm of High pass filter in matlab,I think it is better,but i do not know whether it is fit or not,because it is my first upload,so please givve me some suggestion. Platform: |
Size: 1024 |
Author:李会 |
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Description: FIR高通滤波器的matlab程序设计及其在DSP里的实现。-FIR high-pass filter matlab program design and its implementation in the DSP. Platform: |
Size: 90112 |
Author:王岩 |
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Search - high pass filter matlab