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Description: 有直接法,间接法,Bartlett法,Welch法-有????? ????? Bartlett ? Welch
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Size: 1024 |
Author: yyb_whu |
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Description: Wetch功率谱计算,采用c语言编制!-Wetch power spectrum calculated using c language!
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Size: 1024 |
Author: 王一飞 |
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Description: 求功率谱估计常用的几种方法，包括周期图法，Welch 法，和AR模型法。-For power spectrum estimation commonly used in several ways, including periodogram, Welch law, and the AR model.
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Size: 1024 |
Author: 田晓红 |
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Description: ex6_1 ～ ex6_3二项分布的随机数据的产生
ex6_4 ～ ex6_6通用函数计算概率密度函数值
ex6_7 ～ ex6_20常见分布的密度函数
ex6_21 ～ ex6_33随机变量的数字特征
ex6_34 采用periodogram函数来计算功率谱
ex6_35 利用FFT直接法计算上面噪声信号的功率谱
ex6_36 利用间接法重新计算上例中噪声信号的功率谱
ex6_37 采用tfe函数来进行系统的辨识，并与理想结果进行比较
ex6_38 在置信度为0.95的区间上估计有色噪声x的PSD
ex6_39 在置信度为0.95的区间上估计两个有色噪声x，y之间的CSD
ex6_40 用程序代码来实现Welch方法的功率谱估计
ex6_41 用Welch方法进行PSD估计，并比较当采用不同窗函数时的结果
ex6_42 用Yule-Walker AR法进行PSD估计
ex6_43 用Burg算法计算AR模型的参数
ex6_44 用Burg法PSD估计
ex6_45 比较协方差方法与改进的协方差方法在功率谱估计中的效果
ex6_46 用Multitaper法进行PSD估计
ex6_47 用MUSIC法进行PSD估计
ex6_48 用特征向量法进行PSD估计-ex6_1 ~ ex6_3 binomial distribution of the generated random data
ex6_4 ~ ex6_6 generic function value of the probability density function
ex6_7 ~ ex6_20 common distribution density function
ex6_21 ~ ex6_33 figure characteristics of random variables
periodogram function ex6_34 used to calculate the power spectrum
ex6_35 direct method using FFT signal above the noise of the power spectrum
ex6_36 recalculated using the indirect method on the example of the power spectrum of noise signal
tfe function ex6_37 used for system identification, and results were compared with the ideal
ex6_38 at 0.95 confidence interval for the estimated colored noise x on the PSD
ex6_39 at 0.95 confidence interval of the two colored noise on the estimated x, y between the CSD
ex6_40 code used to achieve the Welch method of power spectrum estimation
Welch method ex6_41 with PSD estimates, and compare different window function when the results when
ex6_42 using Yule-Walker AR method is esti
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Size: 7168 |
Author: 张满超 |
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Description: 功率谱估计,包括周期图法，burg法，music法，和welch法，并绘图比较-psd,pmusic，pburg
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Size: 1024 |
Author: 肖刘 |
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Description: 功率谱估计（周期图法、welch法、pmusic法等）-PSD estimation
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Size: 1024 |
Author: xiaoxin |
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Description: Fs = 100000 t = 0:1/Fs:.00296
x = 1-cos(4*pi*t) cos(2*pi*t*200)
h = spectrum.welch Instantiate a welch object.
psd(h,x, Fs ,Fs) Plot the one-sided PSD
-Fs = 100000 t = 0:1/Fs:.00296
x = 1-cos(4*pi*t) cos(2*pi*t*200)
h = spectrum.welch Instantiate a welch object.
psd(h,x, Fs ,Fs) Plot the one-sided PSD
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Size: 119808 |
Author: fair |
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Description: 随机信号谱分析技术实现 随机信号谱估计及质量评价。
离散随机信号通过线性时不变系统时，系统所产生的响应。
功率谱估计的实现方法：自相关函数法、周期图法、Bartlett法、Welch法、MTM法、MUSIC法
-Random signal spectral analysis of random signal spectral estimation and quality evaluation. Discrete random signals through linear systems, the system generated response. Realization of the power spectrum estimation: autocorrelation function, periodogram, Bartlett law, Welch method, MTM method, MUSIC method
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Size: 11264 |
Author: 李倩 |
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Description: Welch法功率谱密度 Psd自功率谱
是用改进的平均周期图法来求随机信号的自功率谱估计
采用信号重叠分段，加窗函数和fft算法等计算一个信号的自功率谱估计（PSD）-Welch法功率谱密度 Psd自功率谱
是用改进的平均周期图法来求随机信号的自功率谱估计
采用信号重叠分段，加窗函数和fft算法等计算一个信号的自功率谱估计（PSD）
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Size: 1024 |
Author: 周陶 |
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Description: 从经典功率谱估计周期图法原理入手，从理论上分析了其存在的局限性，借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力，进行实验仿真，比较不同的窗函数，不同的数据长度对Welch法谱估计质量的影响，并分析了造成这些影响的原因。-The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.
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Size: 214016 |
Author: co |
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Description: 基于Welch算法的经典功率谱估计的Matlab分析，从经典功率谱估计周期图法原理入手，借助Welch 算法对其进行修正-Matlab Simulation Analysis of Power Spectrum Estimation Based on Welch Method，int roduces the principles of Periodogram method of classical PSD estimation，and makes use of Welch to amend Perodogram method
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Size: 243712 |
Author: dy |
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Description: 几种经典的功率谱算法，包括BT法，周期法，welch法，Barttlet法。-some classical alagroam about power-estimation such as BT,period,welch,Barttlet
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Size: 1024 |
Author: 林铭团 |
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Description: Welch功率谱密度是用改进的平均周期图法来求取随机信号的功率谱密度估计值。Welch法采用信号重叠分段、加窗函数和FFT算法等计算一个信号序列的自功率谱估计(PSD如上例中的下半部分的求法)和两个信号序列的互功率谱估计（CSD）。MATLAB信号处理工具箱函数提供了专门的函数PSD和CSD自动实现Welch法估计，而不需要自己编程。-method of power spectral density plot
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Size: 2048 |
Author: LinkedBox |
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Description: 韦尔奇方法
加窗平均周期图方法
PSD-Welch
用Matlab编程仿真实现-Welch method windowed averaged periodogram method PSD-Welch simulation using Matlab programming
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Size: 1024 |
Author: 慕容卿尘 |
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Description: 关于功率谱估计的程序，以及巴特列特和welch改进方法-About the power spectrum estimation procedures, as well as improved methods Bartlett and welchfgsdfgsdfg
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Size: 4096 |
Author: 徐铭泽 |
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Description: 求功率谱估计常用的几种方法，包括周期图法，Welch 法，和AR模型法。-For power spectrum estimation commonly used in several ways, including periodogram, Welch law, and the AR model.
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Size: 2048 |
Author: 杰拉德二世 |
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Description: 功率谱密度估计。welch法功率谱密度估计，协方差法估计，Burg法估计。-psd estimate。welch，covariance，Burg。
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Size: 1024 |
Author: chqtan |
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Description: ex6_1 ～ ex6_3二项分布的随机数据的产生
ex6_4 ～ ex6_6通用函数计算概率密度函数值
ex6_7 ～ ex6_20常见分布的密度函数
ex6_21 ～ ex6_33随机变量的数字特征
ex6_34 采用periodogram函数来计算功率谱
ex6_35 利用FFT直接法计算上面噪声信号的功率谱
ex6_36 利用间接法重新计算上例中噪声信号的功率谱
ex6_37 采用tfe函数来进行系统的辨识，并与理想结果进行比较
ex6_38 在置信度为0.95的区间上估计有色噪声x的PSD
ex6_39 在置信度为0.95的区间上估计两个有色噪声x，y之间的CSD
ex6_40 用程序代码来实现Welch方法的功率谱估计
ex6_41 用Welch方法进行PSD估计，并比较当采用不同窗函数时的结果
ex6_42 用Yule-Walker AR法进行PSD估计
ex6_43 用Burg算法计算AR模型的参数
ex6_44 用Burg法PSD估计
ex6_45 比较协方差方法与改进的协方差方法在功率谱估计中的效果
ex6_46 用Multitaper法进行PSD估计
ex6_47 用MUSIC法进行PSD估计
ex6_48 用特征向量法进行PSD估计
-ex6_1 ~ ex6_3 binomial random data
ex6_4 ~ ex6_6 generic function to calculate the probability density function value
ex6_7 ~ common distribution density function ex6_20
ex6_21 ~ ex6_33 numerical characteristics of random variables
ex6_34 using periodogram function to calculate the power spectrum
ex6_35 direct method using FFT power spectrum of the signal above the noise
ex6_36 use the indirect method to recalculate the case of the power spectrum of the noise signal
ex6_37 tfe functions to use the identification system and the results are compared with the ideal
ex6_38 the confidence level of the estimated colored noise x 0.95 range on PSD
ex6_39 the confidence level of the estimated two colored noise on the 0.95 x interval between the CSD y
ex6_40 application code to implement the Welch method of power spectrum estimation
The results ex6_41 with Welch PSD estimation method and compared using different window function when the time
ex6_42 with Yule-Walker AR method PSD esti
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Size: 5120 |
Author: Bruce |
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Description: 用Blackman-Tukey方法,MUSIC,MV,PHD,Welch方法来估计信号的功率谱-Use Blackman-Tukey,MUSIC,MV,PHD and Welch methods to estimate power spectrum density.
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Size: 3072 |
Author: 呵呵 |
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Description: 经典谱估计和现代谱估计方法matlab程序，周期图法，Welch法，AR模型的yuler,Burg,协方差和修正的协方差法-Classical and modern spectral estimation spectral estimation method matlab program, yuler periodogram, Welch method, AR model, Burg, covariance and modified covariance method
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Size: 2048 |
Author: 卢竞夕 |
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