Search - Periodogram

[matlab] periodogram

Description: 本程序是功率谱密度的仿真比较,关于三个信号源的具体情况参见《现代数字信号处理导论》上册，P202，习题5。实验方法：周期图法、自相关法和协方差法。 -this procedure is the power spectral density of the simulation, 3 signal source on the specific circumstances, see the "modern digital signal processing" Introduction to the first volume, P202, Exercise 5. Experimental Methods : Chart cycle, since the correlation and covariance method.
Platform: | Size: 6144 | Author: lidong | Hits:

[Special Effects] 2D_Spectrum

Description: Author: Xianju Wang Summary: 2 Dimensional Spectral Estimation MATLAB Release: R12 Description: Estimating the power spectrum associated with a random process is desirable in many applications. This package includes four important 2-D spectral estimation methods.(Periodogram, Autorrelation Method, Covariance Method, Modified Covariance Method).-Author : Xianju Wang Summary : 2 Dimensional Spectral Estimation MATLAB Rele ase : R12 Description : Estimating the power spectrum associated with a random process is desirable in many applicati ons. This package includes four important 2-D's pectral estimation methods. (Periodogram. Autorrelation Method, Covariance Method. Modified Covariance Method).
Platform: | Size: 2048 | Author: Jallon | Hits:

[Other] period

Description: 近代信号处理中周期图法功率谱估计的MATLAB源码，简单但经典的算法。-Modern Signal Processing periodogram power spectral estimate of MATLAB source code, simple but classic algorithms.
Platform: | Size: 1024 | Author: 项慧慧 | Hits:

[DSP program] periodogram

Description: 平均周期图法重叠和不重叠分段功率谱估计-Average periodogram overlapping and non-overlapping sub-power spectrum estimation
Platform: | Size: 1024 | Author: xuyan | Hits:

[Other] longteng3

Description: Bartlett法：Bartlett平均周期图的方法是将N点的有限长序列x(n)分段求周期图再平均。-Bartlett Law: Bartlett average periodogram method is limited to N-point long sequence x (n) Sub-seeking re-periodogram average.
Platform: | Size: 1024 | Author: 赵西玲 | Hits:

[matlab] periodogramestimate

Description: Generate 100 samples of a zero-mean white noise sequence with variance , by using a uniform random number generator. a Compute the autocorrelation of for . b Compute the periodogram estimate and plot it. c Generate 10 different realizations of , and compute the corresponding sample autocorrelation sequences , and . Compute the average autocorrelation sequence as and the corresponding periodogram for . d Compute and plot the average periodogram using the Bartlett method. e Comment on the results in parts (a) through (d). -Generate 100 samples of a zero-mean white noise sequence with variance, by using a uniform random number generator.a Compute the autocorrelation of for. B Compute the periodogram estimate and plot it. C Generate 10 different realizations of, and compute the corresponding sample autocorrelation sequences, and. Compute the average autocorrelation sequence as and the corresponding periodogram for. d Compute and plot the average periodogram using the Bartlett method. e Comment on the results in parts (a) through (d).
Platform: | Size: 1024 | Author: 冀晗 | Hits:

[DSP program] powerp

Description: 关于功率谱估计的,周期图法,自相关法,bartlett法和welch法,还有一个复倒谱估计的代码-On the power spectrum estimation, periodogram, since the relevant law, bartlett law and Welch law, there is a Complex Cepstrum estimated code
Platform: | Size: 1024 | Author: | Hits:

[matlab] GongLvPuGuJi

Description: 用Matlab编写的功率谱估计，输入数据是100年太阳黑子活动记录，用周期图法、最大熵值估计（AR法及Burg法），画出信号功率谱进而算出太阳黑子活动周期。-Matlab prepared using power spectrum estimation, input data is 100-year record of sunspot activity, using periodogram method, the estimated value of maximum entropy (AR Law and Burg method), draw the signal power spectrum and then calculate the sunspot activity cycle.
Platform: | Size: 5120 | Author: ldh | Hits:

[Speech/Voice recognition/combine] MTM_PSD_subspec

Description: 基于多窗谱法功率谱估计的谱减法语音增强程序，多窗谱功率谱估计比传统的周期图法方差效果更好，抑制音乐噪声效果更佳。该程序对语音增强入门的研究者有参考意义。-Spectrum method based on multi-window power spectral estimate of spectral subtraction speech enhancement procedures, multi-window spectral power spectrum estimation than the traditional periodogram variance better suppress noise better music. The procedure entry on speech enhancement researchers have reference value.
Platform: | Size: 2048 | Author: 武月 | Hits:

[Other] 5

Description: 用最简单的程序去提取信号的功率谱，平均周期图法直接法提取，为基本的方法-Using the simplest procedures to extract the signal power spectrum, the average periodogram extracted directly, as the basic method
Platform: | Size: 1024 | Author: caochengyin | Hits:

[matlab] FFTpowerspectrumandtheestimated

Description: 用Fourier变换求取信号的功率谱---周期图法用Fourier变换求取信号的功率谱---分段周期图法用Fourier变换求取信号的功率谱---welch方法功率谱估计----多窗口法（multitaper method ,MTM法）功率谱估计----最大熵法（maxmum entmpy method,MEM法）功率谱估计----多信号分类法（multiple signal classification,music法）Fourier transform to strike a signal to the power spectrum - the cycle of plans Fourier transform to strike a signal to the power spectrum - Sub-cycle Method Fourier transform to strike a signal to the power spectrum --- welch method Power spectrum estimated more than window ---- Law (multitaper method, MTM) ---- Power spectrum estimate of maximum entropy (maxmum entmpy method, MEM) ---- More than the estimated power spectrum signal classification (multiple signal classification, music)-To strike a signal with Fourier transform power spectrum- periodogram to strike a signal with Fourier transform power spectrum- Sub-periodogram with Fourier transform power spectrum of the signal to strike-welch method of power spectrum estimation multi-window method (multitaper method, MTM method) Maximum entropy power spectrum estimation method (maxmum entmpy method, MEM law) power spectrum estimation multi-signal classification (multiple signal classification, music law) Fourier transform to strike a signal to the power spectrum- the cycle of plans Fourier transform to strike a signal to the power spectrum- Sub-cycle Method Fourier transform to strike a signal to the power spectrum- welch method Power spectrum estimated more than window Law (multitaper method, MTM) Power spectrum estimate of maximum entropy (maxmum entmpy method, MEM ) More than the estimated power spectrum signal classification (multiple signal classification, music)
Platform: | Size: 2048 | Author: walkinghill | Hits:

[Graph program] PSD

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.
Platform: | Size: 1024 | Author: 田晓红 | Hits:

[Other] PowerSpectrumEstimate

Description: 该文件解压后为WORD文档格式，是我自己写的基于周期图法等算法的功率谱估计文档，内有详细的matlab源代码-After unzip the file for WORD file format, I wrote it myself periodogram-based algorithms such as power spectrum estimation document, with detailed source code matlab
Platform: | Size: 105472 | Author: 刘建国 | Hits:

[Mathimatics-Numerical algorithms] approceesig

Description: Measuring Frequency Content in Signals I this section we will study some non parametric methods for spectrum estimation of a stochastic process. These methods are described in the literature. All methods are based on the Periodogram which is defined for a sequence x[n] with length N according to
Platform: | Size: 371712 | Author: Rizwan | Hits:

[matlab] p_classical

Description: 经典的功率谱估计，平均周期图法实现，已经加上了详细的注释-Classical power spectrum estimation, the average periodogram implementation, has added a detailed comment
Platform: | Size: 1024 | Author: 曲路正 | Hits:

[assembly language] chap08

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
Platform: | Size: 7168 | Author: 张满超 | Hits:

[Other] PSD_zqt

Description: 周期图法进行功率谱估计的函数，配套张旭东的课本习题-Periodogram power spectrum estimate of function, supporting the Textbook Exercise Zhang
Platform: | Size: 1024 | Author: 高原 | Hits:

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