Description: 自己编写的比较全面的故障诊断matlab函数程序，包括统计法、时域法、时间序列法、频谱及功率普密度函数、小波分析法程序中有详细的说明。-their preparation of a more comprehensive fault diagnosis Matlab function procedures, including statistics, time domain, time series, and power spectral density function Pronk, wavelet analysis procedures are described in detail. Platform: |
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Author:suzhixiao |
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Description: 基于matlab的信号时频分析仿真
MATLAB 软件在多个研究领域都有着广泛的应用。其中,它的频谱分析和滤波器的分析设计功能很强,从而使数字信号处理变得十分简单、直观。本文介绍了时频分析基础理论及一些应用,运用MATLAB 语言实现了旨在构造一种时间和频率的密度函数,以揭示信号中所包含的频率分量及其演化特性的wigner-ville 分布。-Matlab-based time-frequency signal analysis and simulation software MATLAB in a number of research fields as wide Pan application. Among them, its spectrum analysis and the analysis of filter design function very strong, so that the digital signal processing is very simple. intuitive. This paper presents a time-frequency analysis of basic theory and some applications, use MATLAB to the structure of a time and frequency density function, to reveal the signal contained in the frequency components and evolution of the air to air-ville distribution. Platform: |
Size: 163538 |
Author:yangkai |
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Description: 基于随机过程的莱斯表达式产生窄带随机过程：
2、掌握窄带随机过程的特性，包括均值（数学期望）、方差、相关函数及功率谱密度等。
-Rice random process based on the expression of narrow-band random process generated: 2, grasp the characteristics of narrow-band random process, including the mean (mathematical expectation), variance, correlation function and power spectral density and so on. Platform: |
Size: 45056 |
Author:kevin |
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Description: MATLAB环境下的直接法 间接法和welch法源程序和谱密度函数的曲线比较-MATLAB environment direct and indirect source Welch law and spectral density function of the curve Platform: |
Size: 56320 |
Author:凌丽 |
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Description: MATLAB 数学手册复合版内容详尽 包括矩阵及其基本运算，特征值与二次型数值计算与数据分析 插值、拟合与查表 常微分方程数值解偏微分方程的数值解 符号运算积分变换Taylor级数 概率统计 随机数的产生 随机变量的概率密度计算 随机变量的累积概率值(分布函数值)正整数的频率表 4.6.2 经验累积分布函数图形 最小二乘拟合直线
绘制正态分布概率图形
绘制威布尔(Weibull)概率图形
样本数据的盒图
给当前图形加一条参考线
在当前图形中加入一条多项式曲线
样本的概率图 附加有正态密度曲线的直方图在指定的界线之间画正态密度曲 假设检验 方差分析 foptions函数 非线性规划问题 隶属函数 模糊推理结构FIS 绘图与图形处理 含有基本实例代码
-MATLAB math composite version of the manual includes a detailed matrix and the basic computing, quadratic eigenvalue with numerical analysis and data interpolation, fitting with the look-up table the numerical solution of ordinary differential equations numerical solution of partial differential equations symbols computing integral transforms Taylor class the number of probability and statistics of the generated random number of random variables the probability density of random variable cumulative probability values (distribution function value) positive integer frequency table 4.6.2 graphical experience distribution function least-squares fitting a straight line
Normal probability graph drawing
Drawing Weibull (Weibull) probability graph
Sample data box diagram
To add a reference to the current graphics line
In the current graph by adding a polynomial curve
Additional samples have the probability map is the histogram density of states curve at the specified Platform: |
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Author:小李 |
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Description: 基于马尔萨斯及Logistic人口模型，本文做了相应改进，根据已有数据确立了我们的人口模型。人口净增长率与人口密度比是简单常数值或者是简单的指数函数，所建立的模型来预测人口总数都是不完备的，所以我们假定人口净增长率是随总人口变化的函数，而这个函数是我们通过数据拟合可以近似得到的，由人口净增长率函数的确立，我们可以以微分方程的形式建立人口模型-Based on the Malthusian and Logistic population model, this article has done a corresponding improvement in the data has been established according to our population model. Net population growth rate and population density of more than a simple constant value, or a simple exponential function, the model to predict the total population are incomplete, so we assume that the net population growth rate is changing with the function of the total population, and this function is fitted, we can approximate the data obtained by the population net growth rate of established function, we are able to establish a population in the form of differential equation model Platform: |
Size: 197632 |
Author:laiwei |
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Description: kde全称是kernel density estimation.基于核函数的概率密度估计方法。是模式识别中常用的算法之一-KDE which is kernel density estimation is used to estimate probabilty function. It is mostly used in pattern recogntion Platform: |
Size: 2274304 |
Author:herman |
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Description: 基于累计量的奇异值－总体最小二乘法求AR参数 用奇异值－总体最小二乘法求AR参数 一般最小二乘法求AR参数 根据AR参数和自相关函数以及AR阶数用Cadzow谱估计子求出频谱密度-Based on the cumulative amount of singular value- total least squares method for AR parameter using singular value- total least squares method for AR parameter ordinary least squares method for AR parameter in accordance with AR parameters and the autocorrelation function, as well as the order of AR spectral estimation using Cadzow sub-spectrum density obtained Platform: |
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Author:miaohaochun |
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Description: 用Matlab产生一满足条件的窄带随机过程，编写子程序计算该随机过程的均值函数，自相关函数，功率谱，包络，包络平方及相位的一维概率密度画出相应的图形-Generated using Matlab to meet the conditions of a narrow-band random process, the preparation of random process subroutine to calculate the mean function, auto-correlation function, power spectrum, envelope, square envelope and phase probability density of the one-dimensional graphics to draw the corresponding Platform: |
Size: 1024 |
Author:qiwenchao |
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Description: 鲁棒控制系统仿真
统计工具箱简介
MatLab中Statistics工具箱里的各种密度函数和分布函数的作图命令-Robust control system simulation toolbox Profile Statistics Statistics Toolbox in MatLab in the various density function and distribution function of the mapping order Platform: |
Size: 6144 |
Author:wanbing |
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Description: 利用最大值熵法和PSD函数法分别求信号的功率谱密度。-The use of maximum entropy method and the PSD function method for seeking signals in the respective power spectral density. Platform: |
Size: 3072 |
Author:chenjuntang |
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Description: 本程序已被本人整理到WORD文档中，编程语言为MATLAB，本文设计的滤波器采用傅里叶级数展开法。模拟的杂波的功率谱密度采用BVURG法，概率密度函数的估计采用直方图估计法，设计参数皆在文档中表明。此程序已经验证是正确可执行的，并能生成图形，值得下载！-This program has been organized into WORD document I, the programming language MATLAB, the filter designed in this paper Fourier series expansion method. Simulated clutter power spectral density using BVURG method, the probability density function is estimated using histogram estimation methods, design parameters are indicated in the document. This procedure has been verified is correct executable, and can generate the graph, it is worth to download! Platform: |
Size: 4096 |
Author:biggirl |
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Description: 关于GPS中BOC信号的产生，功率谱密度仿真，自相关函数以及与C/A码的互相关仿真程序。能够有效的对BOC信号的特性进行分析-On the GPS in the BOC signal generation, power spectral density simulation, the autocorrelation function as well as with the C/A code cross-correlation simulation program. Of the BOC can effectively analyze the characteristics of the signal Platform: |
Size: 8192 |
Author:LJJ |
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Description: 高斯模型就是用高斯概率密度函数（正态分布曲线）精确地量化事物，将一个事物分解为若干的基于高斯概率密度函数（正态分布曲线）形成的模型。(Gaussian model is to use Gaussian probability density function (normal distribution curve) to accurately quantify things, a thing is divided into several based on the Gaussian probability density function (normal distribution curve) to form the model.) Platform: |
Size: 11264 |
Author:Byydyh
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Description: 粒子滤波的MATLAB实现，通过寻找一组在状态空间中传播的随机样本来近似的表示概率密度函数，用样本均值代替积分运算，进而获得系统状态的最小方差估计的过程，这些样本被形象的称为“粒子”，故而叫粒子滤波(MATLAB implementation of particle filter,By looking for a set of random samples which are propagated in the state space to approximate the probability density function, the process of the minimum variance estimation of the system state is obtained by replacing the integral operation with the mean of the sample. These samples are called "particles", so they are called particle filtering.) Platform: |
Size: 1024 |
Author:黄子豪 |
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Description: 针对随机结构随机激励下的动力响应概率分布求解，基于广义概率密度方法(the calculation of the generalized probability density function) Platform: |
Size: 15360 |
Author:lzissa |
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Description: 语音信号是一个非平稳时变的信号，所以用计算稳态信号的方法计算功率谱密度函数没有太大意义，看不出信号的动态变化，"gonglvpu"给出计算短时功率谱密度函数(Speech signal is a non-stationary time-varying signal, so it is not very meaningful to calculate the power spectral density function by calculating the steady-state signal. The dynamic changes of the signal can not be seen. The "gonglvpu" gives the short-term power spectral density function.) Platform: |
Size: 44032 |
Author:mrlong |
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Description: 道床加速度时程曲线。功率谱密度函数 图。1/3倍频程Z振级频谱图。道床Z振级VLz（dB）。(Acceleration time history curve of ballast. Power spectral density function. Frequency spectrum of 1 / 3 octave Z vibration level. Ballast Z vibration level vlz (DB).) Platform: |
Size: 6144 |
Author:tangsiyan |
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Search - MATLAB density function