Description: 功率谱估计matlab防真程序 从介绍功率谱的估计原理入手,分析了经典谱估计和现代谱估计两类估计方法的原理、各自特点及在Matlab中的实现方法率谱估计 周期图法 AR参数法-power spectrum estimation procedures Matlab defense from introducing real power spectrum estimation principle start, Analysis of the spectral estimation classic and modern spectral estimation Estimation of two principles, and their respective characteristics in Matlab method of spectral estimation rate cycle CLC AR parameter method Platform: |
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Author:lase |
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Description: 功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同经典谱估计互为补充。在认真学习了现 代谱估计方法后，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。-Power Spectral Estimation of very extensive, in all disciplines and fields of application of a great deal of attention. The "modern signal processing" on the curriculum of classical and modern spectral estimation spectrum is estimated that the two types of spectrum estimation method; Classical spectrum estimation is based on Fourier transform, although high computing efficiency advantages, but also low-resolution spectrum Sidelobe serious leakage of long sequences have good estimates. In order to overcome the classic shortcomings of the spectrum estimation, there have been a pair of modern spectral estimation methods. Modern spectral estimation is the random process model parameters based on the maximum likelihood estimation, maximum entropy method, AR model, forecast filter. Spe Platform: |
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Description: 理解随机信号功率谱分析原理和方法。
(1) 生成信号，被淹没在在噪声中；
(2) 试用周期图法估计信号的功率谱；
(3) 选用不同窗，使用修正周期图法估计信号的功率谱；
(4) 对一段语音信号，使用LD算法估计其功率谱；
(5) 详细列出功率谱估计的步骤和原理。
-understanding of random signal power spectrum analysis principles and methods. (1) generate signals being drowned in the noise; (2) The probationary period plan estimates the signal power spectrum; (3), different windows, the use of map amendment cycle method to estimate the power spectrum signal; (4) a voice signal, the use of LD algorithm to estimate the gong spectrum; (5) a detailed breakdown of the power spectrum estimation steps and principle. Platform: |
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Author:殷开 |
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Description: 讨论了用MATLAB实现经典谱估计的各种方法，比较了它们的性能指标，并优选它们的参数.得出了在科学研究和工程技术应用中有一定参考价值的结论-discussed using MATLAB classical spectrum estimation of various methods to compare their performance indicators, Optimization and their parameters. come in scientific research, engineering and technical applications can be useful to the conclusion Platform: |
Size: 5120 |
Author:梁宏波 |
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Description: 接法又称周期图法，它是把随机序列x(n)的N个观测数据视为一能量有限的序列，直接计算x(n)的离散傅立叶变换，得X(k)，然后再取其幅值的平方，并除以N，作为序列x(n)真实功率谱的估计。
-Connection also known as cycle map, it is random sequence x (n) N observational data as a sequence of limited energy, direct calculation x (n) the discrete Fourier transform, in X (k), then the lesser of the square of the amplitude and divided by N, as the sequence x (n) real power spectrum estimation. Platform: |
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Author:梁宏波 |
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Description: 在语音信号处理中使用matlab对语音信号进行lpc谱估计的源代码。-in voice signal processing using Matlab, the audio signal lpc spectrum estimation of the source code. Platform: |
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Description: 序列x（n）的Welch法功率谱估计
用matlab来实现-Sequence x (n) of the Welch method power spectrum estimation using matlab to achieve Platform: |
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Author:cjl |
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Description: 胡广书的数字信号处理一书中的所有matlab程序。包括各种滤波器的设计，经典功率谱的估计、参数模型功率谱估计等，非常有用。-the digital signal processing in a book all Matlab procedures. Including various filter design, classic power spectrum estimation, power spectrum model parameter estimation, very useful. Platform: |
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Author:cangyan |
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Description: 用matlab 语言实现功率谱估计算法,程序中有详细的说明-using Matlab language power spectrum estimation algorithm, the process is described in detail in Platform: |
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Author:XIAOJSJ |
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Description: 功率谱估计matlab防真程序 从介绍功率谱的估计原理入手,分析了经典谱估计和现代谱估计两类估计方法的原理、各自特点及在Matlab中的实现方法率谱估计 周期图法 AR参数法-power spectrum estimation procedures Matlab defense from introducing real power spectrum estimation principle start, Analysis of the spectral estimation classic and modern spectral estimation Estimation of two principles, and their respective characteristics in Matlab method of spectral estimation rate cycle CLC AR parameter method Platform: |
Size: 11264 |
Author:lase |
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Description: 现代信号处理中谱估计在matlab中的使用例程-Modern Signal Processing Spectrum Estimation in the use of matlab routines Platform: |
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Author:chenpailin |
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Description: 现代数字喜好处理的MATLAB程序代码，包含随机过程分析，各种功率谱估计（欧拉方程法、协方差算法、burg算法、修正协方差算法、等等），维纳滤波器的设计、自适应滤波器的设计。 note：里面包含一些很实际的算法设计，比如说：没有发送序列的自适应噪声抵消技术，etc .还包含了详细的设计报告！-Preferences of modern digital processing MATLAB code, including the random process analysis, a variety of power spectrum estimation (Euler equation method, covariance method, burg algorithm, modified covariance algorithm, etc.), Wiener filter design, adaptive filter design. note: which contains some very practical algorithm design, such as: no send sequence adaptive noise cancellation technology, etc. also includes a detailed design report! Platform: |
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Author:leexian |
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Description: 使用MATLAB对平稳随机信号以改进的功率谱法（welch法）以及Thomson多窗估计法（Thomson Multitaper Method）做功率谱估计的源代码-Pairs of stationary random signals using MATLAB in order to improve the power spectrum method (welch France), and the Thomson multi-window estimation method (Thomson Multitaper Method) to do the source code for power spectrum estimation Platform: |
Size: 1024 |
Author:赵明诚 |
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Description: 利用多窗口法实现频谱估计，本例直接调用pmtm函数进行估计。-Using multi-window method of spectrum estimation, in this case to estimate the direct call pmtm function. Platform: |
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Author:kitty |
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Description: 功率谱估计
经典的功率谱估计是将数据工作区外的未知数据假设为零，相当于数据加窗。经典功率谱估计方法分为：相关函数法、周期图法以及改进的周期图估计法即平均周期法和平滑周期图法；
1相关函数法
2周期图法
3平均周期图法和平滑平均周期图法-Power spectrum estimation is the classical power spectrum estimation of work zone data assumed to be zero outside the known data, the equivalent of data windowing. Classical power spectrum estimation method is divided into: correlation function, periodogram and periodogram estimation improved with an average cycle method and the smooth periodogram a correlation function 2 periodogram 3 Average periodogram and periodogram smoothing average Law Platform: |
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Author:陈云飞 |
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Description: 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.) Platform: |
Size: 2048 |
Author:小小先生
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