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Description: 两序列x(n)和y(n)的交叉谱分析，ol(0:m)频率，tl(0:m)周期，px(0:m)是x(n)的连续功率谱，py(0:m)是y(n)的连续功率谱，pxy(0:m)协谱，qxy(0:m)余谱，rxy(0:m)凝聚谱，cxy(0:m)位相差谱，lxy(0:m)滞后时间长度谱，rxy951(0:m)凝聚谱F-检验的95％置信上限，rxy952(0:m)凝聚谱Goodman-检验的95％置信上限，其中m=[n/2.]。 -two sequences x (n) and y (n) of the cross-spectral analysis, ol (0 : m) frequency, tl (0 : m) cycle, px (0 : m) x (n) of continuous power spectrum, py (0 : m) y (n) of continuous power spectrum, pxy (0 : m) HS spectrum, qxy (0 : m) I spectrum, rxy (0 : m) pool spectrum, cxy (0 : m) at the difference spectrum, lxy (0 : m) time lag length spectrum, rxy951 (0 : m) rally spectrum F-test of 95% confidence limit rxy952 (0 : m) rally spectrum Goodman - examination of the 95% confidence limit, where m = [n / 2.] .
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Size: 3924 |
Author: 冯立成 |
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Description: 一个非常好的时间序列工具箱，详细使用说明见P. M. T. Broersen, Automatic Spectral Analysis with Time Series Models, IEEE Transactions on Instrumentation and Measurement, Vol. 51, No. 2, April 2002, pp. 211-216.
-a very good time series toolbox, detailed description of the use of P. T. M. Broersen. Automatic Spectral Analysis with Time Series M odels. IEEE Transactions on Instrumentation and Meas urement, Vol. 51, No. 2, April 2002, pp. 211-216.
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Size: 403556 |
Author: rex |
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Description: 1．通过实验加深对快速傅立叶变换（FFT）基本原理的理解。
2．了解FFT点数与频谱分辨率的关系，以及两种加长序列FFT与原序列FFT的关系。
离散傅里叶变换（DFT）和卷积是信号处理中两个最基本也是最常用的运算，它们涉及到信号与系统的分析与综合这一广泛的信号处理领域。实际上卷积与DFT之间有着互通的联系：卷积可化为DFT来实现，其它的许多算法，如相关、滤波和谱估计等都可化为DFT来实现，DFT也可化为卷积来实现。-1. Deepen the experimental fast Fourier transform (FFT) the basic tenets of understanding. 2. Understand the FFT spectrum and points of the resolution, and two extended sequence with the original FFT FFT relations. Discrete Fourier Transform (DFT) and the convolution of two signal processing is the most commonly used basic arithmetic, they relate to the signal and system analysis and synthesis of the wide range of signal processing field. DFT actually convolution and interoperability between contact : DFT into convolution can be achieved in many other algorithms, If relevant, filtering and spectral estimation could be achieved as DFT, DFT into convolution can be achieved.
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Size: 2883 |
Author: 深蓝 |
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Description: 谱估计
(1)修正协方差法
(2)多重信号分类（MUSIC）算法
(3)ESPRIT算法
(4)皮萨论科（Pisarenko）谐波分解法
并对各算法进行分析。
解压后即可在MATLAB上运行-spectral estimation (1) the amendment of covariance (2) multiple signal classification (MUSIC) algorithm (3) ESP RIT algorithm (4) On order pizza's from Branch (Pisarenko) harmonic decomposition of each algorithm for analysis. Unpacked can run in MATLAB
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Size: 6584 |
Author: 孙云 |
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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).
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Size: 2671 |
Author: Jallon |
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Description: 实现差分编码和数字分相码的波形以及功率谱密度的仿真，取样点数默认为2^14。-achieve Differential encoding and digital Phase code and the waveform of the power spectral density of simulation, The default sampling points for 14 ^ 2.
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Size: 2170 |
Author: 段美姣 |
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Description: 图像处理的关于Snakes : Active Contour Models算法和水平集以及GVF的几篇文章，文章列表为：
[1]Snakes Active Contour Models.pdf
[2]Multiscale Active Contours.pdf
[3]Snakes, shapes, and gradient vector flow.pdf
[4]Motion of level sets by mean curvature I.pdf
[5]Spectral Stability of Local Deformations Spectral Stability of Local Deformations.pdf
[6]An active contour model for object tracking using the previous contour.pdf
[7]Volumetric Segmentation of Brain Images Using Parallel Genetic AlgorithmsI.pdf
[8]Segmentation in echocardiographic sequences using shape-based snake model.pdf
[9]Active Contours Without Edges.pdf
学习图像处理的人必看的几篇文章
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Size: 5512247 |
Author: 张阳 |
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Description: Spectral Element Method for wave propagation and rupture dynamics.
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Size: 882229 |
Author: bahua Liu |
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Description: 谱聚类。 很好用的人工智能算法
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Size: 14801 |
Author: jwj |
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Description: 1.Ultra-wideband interference mitigation using cross-layer cognitive radio
2.Time-varying interference spectral analysis for Cognitive UWB networks
3.Cosine Modulated Filterbank Technique for Cognitive UWB
4.Coexistence Issues in Cognitive Radios Based on Ultra-Wide Bandwidth Systems
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Size: 3468396 |
Author: 常春 |
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Description: 计算ARMA(p，q)模型的功率谱密度。
形参说明：
b——双精度实型一维数组，长度为(q+1),存放ARMA(p，q)模型的滑动平均系数。
a——双精度实型一维数组，长度为(p+1),存放ARMA(p,q)模型的自回归系数。
q——整型变量,ARMA(p,q)模型的滑动平均阶数。
p——整型变量,ARMA(p,q)模型的自回归阶数。
sigma2——双精度实型变量,ARMA(p,q)模型白噪声激励的方差。
fs——双精度实型变量,采样频率(Hz)。
x——双精度实型一维数组,长度为len。当sign＝0时，存放功率谱密度；当sign＝
1时，存放用分贝表示的功率谱密度。
freq——双精度实型一维数组，长度为len。存放功率谱密度所对应的频率。
len——整型变量，功率谱密度的数据点数。
sign——整型变量,当sign＝0时，计算功率谱密度；当sign＝1时，计算用分贝表
示的功率谱密度。
-calculated ARMA (p, q) model of the power spectral density.- Participation : b-- double-precision real one-dimensional arrays, length (q 1), storage ARMA (p, q) model of the average coefficient of sliding. A-- double-precision real one-dimensional arrays, length (p 1), storage ARMA (p, q) model of regression coefficients. Q-- integer variables, ARMA (p, q) moving average model of order. P-- integer variables, ARMA (p, q) model of order since the reunification. Sigma2-- double precision real-type variables, ARMA (p, q) model white noise variance. Fs-- double precision real-type variables, sampling frequency (Hz). X-- double-precision real one-dimensional array, the length of len. When the sign = 0, storage power spectral density; When the sign = 1:00, storage decibel levels, said th
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Size: 23552 |
Author: lkz |
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Description: VC++编程实现对波形数据的频谱分析，包括算法和作图。-VC++ programming implementation of the waveform data of spectral analysis, including algorithms and mapping.
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Size: 103424 |
Author: win |
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Description: The Design of a Finite Element / Spectral Element Code for Incompressible Fluid Flow,-The Design of a Finite Element/Spectral Element Code for Incompressible Fluid Flow,
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Size: 27648 |
Author: test2007 |
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Description: The Great Computer Language Shootout for Java Script.
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Size: 1024 |
Author: tinmounai |
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Description: 根据图模块划分原理，结合聚类算法蛋白质相似度矩阵的构建的网络进行谱聚类算法-spectral clustering of protein Matrix
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Size: 290816 |
Author: 李超 |
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Description: python实现的聚类算法，2015年研究生数学建模第3小题b问；-a spectral clustering algorithm wrote by python
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Size: 64512 |
Author: lili |
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Description: 这是一个介绍课程谱方法求解 偏微分方程(pde)。 我们将提供一些基本的 理论 结果光谱近似以及实用的算法 实现光谱方法。 我们将特别强调如何 设计高效、精确的光谱算法求解pde 当前的兴趣。-This is an introduction course on spectral methods for solving partial differential equations (PDEs). We shall present some basic theoretical results on spectral approximations as well as practical algorithms for implementing spectral methods. We shall specially emphasize on how to design efficient and accurate spectral algorithms for solving PDEs of current interest.
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Size: 14336 |
Author: gznu |
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Description: 完成三个聚类算法：k-means，非负矩阵分解，谱聚类-Please implement three clustering algorithms: k-means, clustering by non-negative matrix factorization (NMF), and spectral clustering.
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Size: 2425856 |
Author: 李天河 |
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Description: spectral clustering using python
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Size: 422912 |
Author: 胡一清 |
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Description: 实现selftuning Spectral clustering算法(selftuning Spectral clustering)
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Size: 4096 |
Author: 小执念
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