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随机信号处理的仿真,一个余弦信号加高斯白噪声,用自相关函数恢复。-Random signal processing simulation, a cosine signal plus Gaussian white noise with autocorrelation function recovery.
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Computation of Autocorrelation of a Noise Corrupted Sinusoidal Sequence.
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the paper I uploaded was submitted in my DSP2 class. The paper discusses the results of the simulation based on the paper of Zatman on "How Narrow is Narrowband?" It investigates the second eigenvalue parameter of the received signal that determines
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通过建立运动模糊数学模型, 进行了消除运动模糊的仿真实验, 维纳滤波恢复运动模糊图像效果较
好。在图像恢复技术中, 点扩展函数( PSF) 是影响图像恢复结果的关键因素, 所以常常利用先验知识和后验判
断方法估计PSF函数来恢复图像。实验表明在实际恢复过程中如果运动模糊图像混入了噪声, 必须考虑到信噪
比、噪声的自相关函数和原始图像的自相关函数对恢复后图像的影响。-Through the establishment of mathematical model of motion
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图像在获取、传愉和存储过程中, 由于受多种原因如模糊、失真、噪声等的影响, 会造成图像质的下降。维纳滤波是一
种常见的图像复原方法, 该方法的思想是使复原的图像与原图像的均方误差最小原则来复原图像。但是该法其有一定的限
制性, 本文在分析维纳滤波复原图像的基础上, 针对维纳滤波复原过程中产生的振铃效应, 提出了基于维纳滤波图像复原的
改进算法。该葬法通过分析图像的边界条件, 来用对图像边界进行处理的方法, 将图像在边界处对称化。实脸结果表明, 该
方法有效地降低了维纳滤波图像复原
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matlab 图像处理 使用噪声能量和图像一维自相关函数进行维纳滤波-matlab image processing and image noise energy use one-dimensional autocorrelation function of Wiener filter
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维纳噪声抑制,1、 实验原理是利用信号之间的相关性进行信号估计,从而将噪声滤除;
2、 辅助观测信号的噪声抑制可利用Wiener-Hopf方程 求出维纳滤波器的系数 ,式中 是 的自相关阵, 是输入信号 和滤波器输入 之间的互相关矢量;
-Wiener noise suppression, 1, experiment is the use of the correlation between the signals for signal estimation, which will fi
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白噪声通过线性系统的处理,包括频域和自相关函数-White noise through a linear system of treatment, including frequency domain and the autocorrelation function
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分析低通白噪声和带通白噪声的功率谱密度函数和自相关函数的性质,并举例同时绘制其图像。-Analysis of white noise low-pass and band-pass white noise power spectral density function and the nature of the autocorrelation function and example to draw its image at the same time.
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有源噪声控制(ANC)主要基于LMS算法,但在处理宽带噪声信号和低信噪比情况下,效果不好.影响控制效果的主要原因是输入信号的自相关分布.而小波变换具有消除信号自相关的作用.因此将小波变换引入有源噪声控制(ANC)是解决问题的一种办法-Active noise control (ANC) is mainly based on the LMS algorithm, but ineffective in dealing with the situation of the broadband noise
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基于labview的多重自相关算法测量低信噪比条件下两路正弦波的相位差-Based on the phase difference between two sine wave labview multi the autocorrelation algorithm measuring low signal-to-noise ratio conditions
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利用x(n)=Asin(pi*n/16)+z(n),z(n)为mean=0,var=0.1高斯白噪声,x(n)的SNR为10dB,s(n)=Asin(pi*n/16-5*pi),得出了x(n)和s(n)互相关函数r(n),以及二者的卷积和.-The utilization for the mean of x (n) = Asin (pi* n/16)+ z (n), z (n) = 0, var = 0.1 Gaussian white noise, x (n) is the SNR as 10
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计算洛伦兹混沌系统的自相关,叠加谐波小信号和高斯报噪声后,计算混合噪声的功率谱-Calculation of autocorrelation of lorenz chaotic system, the superposition of harmonic signal and gaussian noise, the mixed noise power spectrum is calculated
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matlab带噪声周期信号的自相关运算代码仿真有图-autocorrelation matlab periodic signal with noise
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时间序列自相关降噪,经过测试可以使用
希望可以有用-Time series autocorrelation noise, can be tested using
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提取淹没在噪声中的周期信号要求自相关(以判断周期)和互相关(以恢复信号自身)-Extraction drowned in the noise requirements of a periodic signal autocorrelation (to determine the cycle) and cross-correlation (to restore the signal itself)
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可以看出三个信号的自相关函数:1白噪声,2周期函数,3包含周期信号的观测信号。自相关函数-As can be seen from the correlation function of the three signals: a white noise, two periodic functions, the observed signal 3 comprises a periodic signal. Autocorrelation function
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求任意带宽的低通、高通、带通高斯白噪声的自相关函数,自协方差函数和功率谱密度函数。-Seeking any bandwidth low pass, high pass, band pass Gaussian white noise autocorrelation function, autocovariance function and power spectral density function.
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机械信号中常常含有噪声,而自相关函数可以用于检测信号中是否包含有周期成分。
因此,可以利用自相关函数来提取机械信号中的周期成分。-Mechanical signal often contains noise, and the autocorrelation function can be used to detect the signal of whether contains a cycle.therefore, can make use of autocorrelation funct
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多重自相关降噪程序
有2-8重降噪结果 ,频域图,自相关函数等-Multiple autocorrelation noise reduction program
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