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用Welch法进行功率谱估计
- 考虑L的三个不同值：L＝256（3个数据段），L＝128(7个数据段)和L=64（15个数据段）。各自的谱估计图如上图所示。可以明显的看到，加窗明显的减小了频谱上的假谱峰，但也更加进一步平滑了谱峰。所以，对于L＝64的情况，在ω＝0.8π的谱线可以很确定的辨认，但是那两个靠近的谱峰不容易区分。对于L＝128的情况，这种情况提供了在分离和检测间最好的均衡。当然，对于在L＝256时的情况，效果是更好的，能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外，还可以采用
基于MUSIC方法功率谱估计的matlab仿真
- 基于MUSIC方法功率谱估计的matlab仿真，包含实验详细报告，源码，运行结果，及其分析。,MUSIC-based method of power spectrum estimation matlab simulation, including a detailed report on the experiment, source, run results, and analysis.
p_morden.rar
- 用Matlab实现现代功率谱估计，主要有Levinson法，Burg法，协方差法及修正协方差法，四种方法的结果放到一起进行比较，有详细的注释,Using Matlab implementation of modern power spectrum estimation, the main has Levinson Law, Burg method covariance method covariance method, and the amendment, four ways to put to
auto_correlation
- 用Blackman-Tukey方法（自相关法）实现对任意输入的实序列函数x(n)作功率谱估计。-Using Blackman-Tukey method (autocorrelation method) to achieve the actual sequence of arbitrary input function x (n) for power spectrum estimation.
Burg
- 现代数字信号处理Burg法功率谱估计，有详细的备注-Burg method of modern digital signal processing power spectrum estimation, contains a detailed Remarks
levinsonf
- 信号为两个正弦信号加高斯白噪声，用levinson递推法进行功率谱估计。-Signal for two sinusoidal signal plus Gaussian white noise, with levinson recursive power spectrum estimation method.
用最小二乘法和svd-tls法对arma过程进行功率谱估计并比较结果
- 分别用最小二乘法和svd-tls法对arma过程进行功率谱估计并比较结果。包含实验目的，步骤，程序，结果，分析。-Least square method, respectively, and svd-tls on arma-power spectrum estimation process and the results of the comparison. Contains experimental purposes, steps, procedures, results, analysis.
p_classical
- 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
burg
- 实现了用burg法进行功率谱估计，并比较它的结果-Burg achieved by power spectrum estimation method, and compare its results
psd_integ
- 功率谱估计，通过matlab程序对声发射信号进行功率谱估计-Power spectrum estimation, through the matlab program to acoustic emission signals, power spectrum estimation
Untitled2
- 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
psd1ar
- 功率谱估计，多种方法，近似算法都有，值得参考-Power spectrum estimation, a number of ways, both approximate algorithm, it is also useful
burgf
- 信号为两个正弦信号加高斯白噪声，用burg递推法对其进行功率谱估计，效果不错。-Signal for two sinusoidal signal plus Gaussian white noise, the recursive method burg its power spectrum estimation, good results.
welch
- 本程序实现了短数据序列不同窗函数的welch功率谱估计，然后又求了他们的平均标准差，从而判断各个窗函数的优劣。只要稍作修改就能实现不同信噪比下的功率估计，同时也可以实现长数据序列的估计。-This procedure has a short data series of different welch window function power spectrum estimation, and then seek their average standard deviation, and thu
Matlab
- matlab在当今功率谱仿真的作用,包括经典功率谱估计和现代的-matlab simulation in today' s role of power spectrum, including classical and modern power spectrum estimation of
ref
- matlab实现的AR功率谱估计，ARMA功率谱估计。-matlab realized AR power spectrum estimation, ARMA power spectrum estimation.
p
- 现代数字信号处理的经典功率谱估计方法例程,有详细备注解释-A classic of modern digital signal processing power spectrum estimation routines, contains a detailed explanation Remarks
wavelet_power_spectral
- 基于小波变换的功率谱估计MATLAB仿真代码，包括小波变换的基本原理实现，mallat算法的实现，经典功率谱和现代功率谱估计的主要方法仿真比较。-Based on wavelet transform power spectrum estimation MATLAB simulation code, including the basic principles of wavelet transform to achieve, mallat Algorithm, classic and modern
matlab 功率谱估计
- 计算时间序列，尤其是观测数据中的变量的功率谱估计的例子，直接修改输入数据即可使用。(An example of computing power spectrum estimation of time series, especially the variables in observation data, can be used directly to modify the input data.)
几种常用功率谱估计法
- 几种常用的功率谱估计方法：相关函数法(BT 法)，周期图法( periodogram)，Bartlett 法，Welch 法，AR 功率谱曲线( p=50)(Several commonly used power spectrum estimation methods: correlation function method (BT method), periodogram method, Bartlett method, Welch method, AR power spectrum curv