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Description: 内有两个MATLAB程序，主要用于语音增强：一个用于向纯净语音文件(wav)添加高斯白噪声，信噪比可选；另一个文件用于测量语音信噪比，对语音增强效果判断-MATLAB, there are two procedures, mainly used for speech enhancement: one for the pure audio files (wav) add white Gaussian noise, SNR optional another document used to measure the voice signal to noise ratio, the effect of speech enhancement judge
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Size: 1024 |
Author: 武月 |
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Description: add pink noise to signal with certain SNR
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Size: 15360 |
Author: jojo_domboride63 |
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Description: Cooperative communication_power control
a) Generate random binary sequence of +1’s and -1’s.
(b) Given different Power to the source and the relay as well
(c) Multiply the symbols with the channel and then add white Gaussian noise.
(d) At any receiver(relay or destination), equalize (divide) the received symbols with the known channel
(e) Perform hard-decision-decoding and count the bit errors
(f) Plot the power given to both source(Ps) and relay(Pr) with both SNR and BER
-Cooperative communication_power control
a) Generate random binary sequence of+1’s and-1’s.
(b) Given different Power to the source and the relay as well
(c) Multiply the symbols with the channel and then add white Gaussian noise.
(d) At any receiver(relay or destination), equalize (divide) the received symbols with the known channel
(e) Perform hard-decision-decoding and count the bit errors
(f) Plot the power given to both source(Ps) and relay(Pr) with both SNR and BER
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Size: 1024 |
Author: tafa |
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Description: 灰度图像添加噪声，去除噪声,并计算图像的SNR值-add noise, denoise and count SNR
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Size: 2048 |
Author: shuangxc |
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Description: This tool can be used to
- filter speech data with a frequency characteristic as defined by ITU for telephone equipment
and/or
- add noise to speech recordings at a desired SNR (signal-to-noise ratio)
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Size: 171008 |
Author: yfliao |
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Description: Add noise to signal at a prescribed SNR level.
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Size: 934912 |
Author: bob123799 |
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Description: 设计一维纳滤波器
(1). 产生三组观测数据：首先根据S(n)=aS(n-1)+w(n)产生信号S(n)，将其加噪声(信噪比分别为20db，10db，6db)，得到观测数据X1(n)，X2(n)，X3(n)。.
(2). 估计Xi(n)，i=1，2，3的AR模型参数。假设信号长度为L，AR模型阶数为N，分析实验结果，并讨论改变L，N对实验结果的影响。-Design a Wiener filter
(1) produces three sets of observations: First, according to S (n) = aS (n-1)+ w (n) generates the signal S (n), to add noise (SNR are 20db, 10db, 6db ), obtained observational data X1 (n), X2 (n), X3 (n). .
(2) estimated Xi (n), i = 1,2,3 of the AR model parameters. Assuming the signal length L, AR model order N, the analysis of experimental results, and discuss the changes in L, N to the experimental results.
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Size: 1024 |
Author: 郭子子 |
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Description: 利用matlab对图片频域变换、加噪声、计算SNR PSNR，对音频进行处理包括提取高音、低音、并对其进行调制解调-Using matlab frequency domain transform of the picture, add noise to calculate the SNR PSNR of audio processing including the extraction of treble, bass, and its modulation and demodulation
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Size: 22982656 |
Author: vivian |
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Description: 描述如何在信号中添加白噪声和已知信噪比的高斯白噪声！-Describe how to add white noise in the signal and known SNR Gaussian white noise!
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Size: 15360 |
Author: tpzang |
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Description: 设计一维纳滤波器
(1)产生三组观测数据：首先根据s(n)=a s(n-1)+w(n)产生信号s(n)，将其加噪（信噪比分别为20dB,10 dB，6 dB），得到观测数据x1(n), x2(n), x31(n).
(2)估计xi(n)，i=1,2,3的AR模型参数。假设信号长度为L，AR模型阶数为N，分析实验结果，并讨论改变L,N对实验结果的影响。
-A Wiener filter design (1) to produce three sets of observations: first generating a signal s (n) according to s (n) = as (n-1)+w (n), to add noise (20dB SNR, respectively , 10 dB, 6 dB), to obtain observational data x1 (n), x2 (n), x31 (n). (2) estimate xi (n), i = AR model parameters 1,2,3. Assuming the signal length L, AR model of order N, analysis of experimental results and discuss the impact changing L, N of the experimental results.
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Size: 1024 |
Author: 张俊文 |
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Description: monte carlo simulation.
to run the above simulation input" [y1,y2,y3,y4]= ed(0,1,25,2) " in command window.
the "g" in the code above represents the normalisation i.e it represents variance(signal)/variance (noise)
as SNR= power(signal)/power(noise) as the variance of the data is the power.
so i essentially want to "split" the g up. so substitute g= for SNR= power(signal)/power(noise) signal power back into y1 ect.. i.e y1= randn(n,1000000)*sqrt(var(signal))+y0
this is so that i can add the
thank you for any suggestions.
-monte carlo simulation.
to run the above simulation input" [y1,y2,y3,y4]= ed(0,1,25,2) " in command window.
the "g" in the code above represents the normalisation i.e it represents variance(signal)/variance (noise)
as SNR= power(signal)/power(noise) as the variance of the data is the power.
so i essentially want to "split" the g up. so substitute g= for SNR= power(signal)/power(noise) signal power back into y1 ect.. i.e y1= randn(n,1000000)*sqrt(var(signal))+y0
this is so that i can add the
thank you for any suggestions.
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Size: 11264 |
Author: Joydev Ghosh |
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Description: 根据给定的信噪比，将干净音频中自动添加噪声，生成新的含噪音频文件。-add noise into audio according to SNR
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Size: 164864 |
Author: treeson |
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Description: 设计一维纳滤波器。
（1）产生三组观测数据，首先根据s(n)=as(n-1)+w(n)产生信号s(n)，将其加噪(信噪比分别为20dB，10dB，6dB)，得到观测数据x1(n)，x2(n)，x3(n)。
（2）估计xi(n)，i=1,2,3的AR模型参数。假设信号长度为L，AR模型阶数为N，分析实验结果，并讨论改变L，N对实验结果的影响。
-Design a Wiener filter. (1) generate three sets of observations data, first according to s (n) = as (n-1)+w (n) to generate a signal s (n), which add noise (SNR respectively 20dB, 10dB, 6dB), obtained observation data x1 (n), x2 (n), x3 (n). (2) estimate xi (n), i = AR model parameters 1,2,3. Assuming the signal length L, AR model of order N, analysis of experimental results and discuss changes affect L, N of the experimental results.
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Size: 97280 |
Author: fei |
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Description: 是信号处理的基础，供做算法研究人员参考，是国外的成品模型，时间序列数据分析中的梅林变换工具，最大信噪比的独立分量分析算法，迭代自组织数据分析，添加噪声处理。- Is the basis of the signal processing, Algorithm for researchers to do reference, Foreign model is finished, Time series data analysis Mellin transform tool, SNR largest independent component analysis algorithm, Iterative self-organizing data analysis, Add noise processing.
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Size: 8192 |
Author: nbuureyz |
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Description: 借鉴了主成分分析算法（PCA），迭代自组织数据分析，最大似然（ML）准则和最大后验概率（MAP）准则，研究生时的现代信号处理的作业，最大信噪比的独立分量分析算法，添加噪声处理，模式识别中的bayes判别分析算法。- It draws on principal component analysis algorithm (PCA), Iterative self-organizing data analysis, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Modern signal processing jobs when the graduate, SNR largest independent component analysis algorithm, Add noise processing, Pattern Recognition bayes discriminant analysis algorithm.
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Size: 4096 |
Author: jpkirxj |
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Description: 最大信噪比的独立分量分析算法，添加噪声处理，是机器学习的例程，基于matlab GUI界面设计,从先验概率中采样，计算权重，解耦，恢复原信号。- SNR largest independent component analysis algorithm, Add noise processing, Machine learning routines, Based on matlab GUI interface design, Sampling a priori probability, calculate the weight, Decoupling, restore the original signal.
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Size: 9216 |
Author: hxvjeeiwe |
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Description: LDPC码的完整的编译码，FIR 底通和带通滤波器和IIR 底通和带通滤波器，最大信噪比的独立分量分析算法，采用偏最小二乘法，采用热核构造权重，通过反复训练模板能有较高的识别率，添加噪声处理，本程序的性能已经超过其他算法。- Complete codec LDPC code, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, SNR largest independent component analysis algorithm, Partial least squares method, Thermonuclear using weighting factors Through repeated training rKfQJCrlate have higher recognition rate, Add noise processing, This program has exceeded the performance of other algorithms.
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Size: 6144 |
Author: uiqmb |
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Description: 最大信噪比的独立分量分析算法，多姿态，多角度，有不同光照,从先验概率中采样，计算权重，使用混沌与分形分析的例程，添加噪声处理，针对EMD方法的不足,包括数据分析、绘图等等。- SNR largest independent component analysis algorithm, Much posture, multi-angle, have different light, Sampling a priori probability, calculate the weight, Use Chaos and fractal analysis routines, Add noise processing, For lack of EMD, Data analysis, plotting, etc..
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Size: 6144 |
Author: jprap |
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Description: 添加噪声处理，意信号卷积的运算,并且绘制图象，最大信噪比的独立分量分析算法。- Add noise processing, Convolution operation is intended to signal and image rendering, SNR largest independent component analysis algorithm.
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Size: 4096 |
Author: siemou |
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Description: 添加噪声处理，最大信噪比的独立分量分析算法，关于小波的matlab复合分析。- Add noise processing, SNR largest independent component analysis algorithm, Matlab wavelet analysis on complex.
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Size: 7168 |
Author: jeifensun |
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