Description: 从国外网站下载的代码，中值滤波可以很好地过滤掉各种噪音数据，另外，还可以很好地保留边缘信息。此程序可以对一维二维三维信号，进行中值滤波，完成噪声的去除-From abroad website code, median filtering can filter out a good variety of noise data, can also be good to retain the edge information. This procedure can be one-dimensional two-dimensional three-dimensional signal, for median filtering, noise removal completed Platform: |
Size: 3072 |
Author:武玉伟 |
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Description: this file contains the implementation of the "contraharmonic filter" using the basic formula of finding contraharmonic mean achieved through the use of for loops.
contraharmonic filter can remove both -SALT n PEPPER noise from the image but not simultaneously.
The positive order contraharmonic filter removes the pepper noise and the negative order removes the salt noise.
SALT n PEPPER noise has been added to the image and it has been removed sequentially using the contraharmonic filter of positive and negative filters one after the other.
It has been observed that the removal of salt noise followed by the removal of the pepper noise gives better results-this file contains the implementation of the "contraharmonic filter" using the basic formula of finding contraharmonic mean achieved through the use of for loops.
contraharmonic filter can remove both-SALT n PEPPER noise from the image but not simultaneously.
The positive order contraharmonic filter removes the pepper noise and the negative order removes the salt noise.
SALT n PEPPER noise has been added to the image and it has been removed sequentially using the contraharmonic filter of positive and negative filters one after the other.
It has been observed that the removal of salt noise followed by the removal of the pepper noise gives better results... Platform: |
Size: 1024 |
Author:saumya |
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Description: 用窗函数法hamming设计的FIR数字低通滤波器，能够实现心电信号中随机噪声的去除-Hamming window function method with the design of FIR digital low-pass filter, ECG can be achieved in the removal of random noise Platform: |
Size: 1024 |
Author:li ting |
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Description: 小波去噪的几篇论文
Automatic identification and Removal of ocular artifacts from EEG using Wavelet transform
小波去噪理论及MATLAB实现研究
小波分析在信号降噪处理中的应用
小波软阈值滤波在信号去噪中的有效性研究-Wavelet denoising of several papers Automatic identification and Removal of ocular artifacts from EEG using Wavelet transform Wavelet Denoising MATLAB implementation of wavelet theory and analysis of noise in the signal processing using wavelet soft threshold filter effectiveness in signal denoising study Platform: |
Size: 5649408 |
Author:STyuco |
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Description: OFDM下行的仿真1、产生要传输随机数；
2、进行调制；
3、串并转换；
4、进行IFFT操作（代码中有用到共轭对称向量的IFFT为实数进行简化计算）；
5、增加循环前缀；
6、并串转换；
7、输出前滤波；
8、增加信道噪声（加性高斯白噪声）；
9、接收端串并转换；
10、去除循环前缀；
11、进行FFT变换；
12、信号解调；
13、误比特率计算；
-OFDM downlink simulation 1, have to be transmitted random number 2, the modulation 3 series and transforms 4, the IFFT operation (code useful to conjugate symmetric vector of the IFFT of real numbers to simplify calculations) 5, the increase in circulating prefix 6, and string conversion 7, the output before the filter 8, increased channel noise (additive white Gaussian noise) 9, the receiver string and conversion 10, removal of cyclic prefix 11, the FFT transform 12 , the signal demodulation 13, bit error rate Platform: |
Size: 112640 |
Author:刘洋 |
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Description: Abstract— with the latest advancements in electronics,
several techniques are used for removal of unwanted entities
from signals especially that are implied in the most
sophisticated applications. The removal of power line
interference from most sensitive medical monitoring
equipments can also be removed by implementing various
useful techniques. The power line interference (50/60 Hz) is
the main source of noise in most of bio-electric signals. The
report presents the removal of power line interference,
baseline wandering and additive white Gaussian noise
(AWGN) from ECG signal using the different types of
filtering technique. The project is based on digital signal
processing (DSP) techniques with MATLAB package, the
IIR Notch filter can be used for removal of power line
interference, Median can be used for Baseline wandering
noise and Discrete Wavelet Transform can be used for
removal of AWGN. Platform: |
Size: 654336 |
Author:muthupandy |
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Description: matlab 图片的除噪，先给图片添加椒盐早上，后通过中值滤波，除掉噪声-matlab image noise removal, give the picture to add salt and pepper in the morning, after the adoption of the median filter to get rid of the noise Platform: |
Size: 30720 |
Author:周预 |
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Search - noise removal filter in matlab