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Description: 用来产生嵌入到随机噪声内的正弦波算法的C源程序。-used to produce embedded into random noise sine wave within the algorithm in C source code.
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Size: 1214 |
Author: minytian |
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Description: noise image processing test gaussian salt pepper additive.非常容易的一个code
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Size: 1609 |
Author: 唐龙 |
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Description: This a Bayesian ICA algorithm for the linear instantaneous mixing model with additive Gaussian noise [1]. The inference problem is solved by ML-II, i.e. the sources are found by integration over the source posterior and the noise covariance and mixing matrix are found by maximization of the marginal likelihood [1]. The sufficient statistics are estimated by either variational mean field theory with the linear response correction or by adaptive TAP mean field theory [2,3]. The mean field equations are solved by a belief propagation method [4] or sequential iteration. The computational complexity is N M^3, where N is the number of time samples and M the number of sources.
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Size: 7168 |
Author: 陈互 |
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Description: 用来产生嵌入到随机噪声内的正弦波算法的C源程序。-used to produce embedded into random noise sine wave within the algorithm in C source code.
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Size: 1024 |
Author: minytian |
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Description: 加性高斯白噪声信道下，OFDM系统仿真程序，调制方式为16QAM-additive white Gaussian noise channels, OFDM system simulation program, the modulation method for 16QAM
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Size: 1024 |
Author: 张国梅 |
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Description: 数字信号处理的应用之一是从含有加性噪声的信号中去除噪声。现有被噪声污染的信号x[k]=s[k]+d[k],式中： 为原始信号d[k]为均匀分布的白噪声。
（1）分别产生50点的序列s[k]和白噪声序列d[k],将二者叠加生成x[k],并在同一张图上绘出x0[k],d[k]和x[k]的序列波形。
（2）均值滤波可以有效去除叠加在低频信号上的噪声。已知3点滑动平均数字滤波器的单位脉冲响应为h[k]=[1,1,1 k=0,1,2],计算y[k]=x[k]*h[k],在同一张图上绘出前50点y[k],s[k]和x[k]的波形，比较序列y[k]和s[k]。
-digital signal processing applications from one containing additive noise signal denoising. Existing noise pollution was a signal x [k] = s [k] d [k], where : of the original signal d [k] uniform distribution of white noise. (1) have 50 points each sequence s [k] and white noise sequence d [k] superposition of the two generation x [k] and the same is likely to draw a map x0 [k] d [k] and x [k] waveform sequence. (2) mean filter can effectively remove superimposed on the low-frequency noise on the signal. 3:00 known moving average digital filter unit for pulse response h [k] = [k = 0,1,2 1,1,1] Calculation y [k] = x [k]* h [k], the same is likely to draw a map before 50 y [k] s [k] and x [k] waveform sequence comparison y [k] s and [k].
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Size: 28672 |
Author: 魏臻 |
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Description: This paper deals with the problem of speech enhancement when a
corrupted speech signal with an additive colored noise is the only
information available for processing. Kalman filtering is known as
an effective speech enhancement technique, in which speech signal
is usually modeled as autoregressive (AR) process and represented
in the state-space domain.-This paper deals with the problem of speech enhancement when a corrupted speech signal wit h an additive colored noise is the only informat ion available for processing. Kalman filterin g is known as an effective speech enhancement te chnique. in which speech signal is usually modeled as aut oregressive (AR) process and represented in th e state-space domain.
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Size: 102400 |
Author: rifer |
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Description: matlab bpsk调制程序，实现了bpsk在matlab下的仿真，并且对于加性噪声下的错误进行统计-matlab bpsk modulation process, realize the BPSK simulation in matlab, and the additive noise under the statistical error
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Size: 1024 |
Author: tianxia |
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Description: 实现图像的加性，乘性噪音，根据输入不同而实现不同的功能，此M文件经测试可以正常运行！-Image of the additive, multiplicative noise, in accordance with different input and realize different functions, the M files have been tested and can be normal operation!
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Size: 1024 |
Author: 陈长春 |
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Description: 这个Matlab程序计算在高斯白噪声（Additive White Gaussian Channel ）下BPSK调制中的错误概率。-The Matlab procedure in the Gaussian white noise (Additive White Gaussian Channel) under BPSK modulation of the error probability.
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Size: 43008 |
Author: 张涛 |
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Description: noise image processing test gaussian salt pepper additive.非常容易的一个code-noise image processing test gaussian salt pepper additive. very easy to a code
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Size: 1024 |
Author: 唐龙 |
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Description: 模拟直扩系统中加性高斯白噪声信道环境下接受机误码率的计算-DS simulation system additive white Gaussian noise channel environment sets the bit error rate calculation
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Size: 2048 |
Author: 胡斌 |
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Description: MATLAB给图像添加高斯、椒盐、加性及乘性噪声(噪声生成)源代码Free Source Code for Adds diferent types of noise to an image-MATLAB add to the image Gaussian, salt and pepper, additive and multiplicative noise (noise generated) source code Free Source Code for Adds diferent types of noise to an image
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Size: 2048 |
Author: 余永松 |
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Description: 这个程序用于在图片中增加各种噪声，如高斯椒盐噪声, 加性或乘性等多种混合噪声，用于其它程序的测试。-This procedure is used to increase the variety of picture noise, such as salt and pepper Gaussian noise, additive or multiplicative noise, such as a mixture for testing other programs.
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Size: 8192 |
Author: xlz |
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Description: In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.-In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.
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Size: 147456 |
Author: prasad |
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Description: MATLAB给图像添加高斯、椒盐、加性及乘性噪声[噪声生成]-MATLAB give the image added Gaussian, salt and pepper, additive and multiplicative noise [noise generated]
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Size: 1024 |
Author: 曾维华 |
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Description: 这个matlab程序实现的是一个噪声生成器，它可以生成高斯、椒盐、加性及乘性噪声，并把这些噪声添加到一幅图像上。-Matlab implementation of this process is a noise generator, it can generate Gaussian, salt and pepper, additive and multiplicative noise, and noise is added to put these on an image.
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Size: 2048 |
Author: |
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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
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Size: 112640 |
Author: 刘洋 |
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Description: 谱减算法为最早的语音降噪算法之一，它的提出，基于一个简单的原理：假设语音中的噪声只有加性噪声，只要将带噪语音谱减去噪声谱，就可以得到纯净语音幅度。这么做的前提是噪声信号是平稳的或者缓慢变化的-Spectral subtraction algorithm is one of the first voice noise reduction algorithm, which has been proposed, based on a simple principle: if only the voice of the noise additive noise, just noisy speech spectrum subtracting the noise spectrum, you can get clean speech amplitude . Do so on the premise that the noise signal is stationary or slowly varying
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Size: 29696 |
Author: xiaofeng |
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Description: Additive White Gaussian Noise
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Size: 1110016 |
Author: Valiniyaz
|
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