Description: 信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、FIR和Lattice结构；IIR滤波器设计包括模拟和数字低通、高通、带通与带阻滤波器设计，以及基于冲激响应不变法和双线性Z变换法的IlR滤波器设计等；FIR滤波器设计包括基于窗函数、频率抽样法和切比雪大逼近法的FIR滤波器设计；平稳信号分析包括经典功率谱估计、基于参数模型的功率谱估计和基于非参数模型的功率谱估计；非平稳信号分析包括STFT变换、Gabor展开、Wigner-Ville分布与Choi-Williams分布；非高斯信号分析包括基于非参数法的双谱估计、基于参数模型的双谱估计，以及双谱估计的应用；信号处理的GUI实现包括滤波器设计与分析的FDATool工具和滤波器设计与信号分析的SPTool工具。-signals and systems based on knowledge, including continuous signal with the model, discrete signal and model; Common signals include transform Z transform, chirp Z-transform, FFT transform. DCT and Hilbert transform; Discrete system architecture including IIR, FIR and Lattice structure; IIR filter design, including analog and digital low-pass, high-pass, band-pass and band stop filter design, Based on the impulse response of the same law and bilinear Z transform the IlR filter design; FIR filter design including on the basis of the window function, frequency sampling and snow all over the big approximation of FIR filter design; stationary signal analysis include classical power spectrum estimation, Based on the model parameters of the power spectrum estimation and non- parametric model b Platform: |
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Author:james |
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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 |
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Description: Matlab动力系统和时间序列分析工具箱:这个工具箱用来分析动力系统和时间序列，它可以定制为：常微分方程、随机微分方程。所有分析的方法被封装在工具箱中，你可以通过命令行或GUI来调用。包含的功能：
ODE常微分方程, SDE随机微分方程和map integration 分析时间序列，过滤、归一化/均衡化、直方图、2D直方图、ACF, MAI, FFT,最大lyapunov指数计算、模式识别。
动力系统分析：创建Poincare截面、分岔图、计算lyapunov指数。-The kit used to analyze the power systems and time series, it can be customized as: ordinary differential equations, stochastic differential equations. All analysis methods are encapsulated in the toolbox, you can call the command line or GUI. Includes features: ODE ordinary differential equation, SDE Stochastic Differential Equations and map integration analysis of time series, filtering, normalization/equalization, histogram, 2D histogram, ACF, MAI, FFT, the maximum lyapunov index, pattern recognition . Power System Analysis: Creating Poincare section, bifurcation diagrams, calculations lyapunov index. Platform: |
Size: 381952 |
Author:朱凤宇 |
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Description: FFT加窗插值修正算法可以较好地提高电力系统
谐波测量的准确度 ,减少由于栅栏效应带来的误差.但
该算法比较复杂 ,编程实现比较困难 ,而Matlab有强大
的数字信号处理功能 ,有专门用于快速傅立叶变换的
FFT函数和良好的图形显示功能.因此用 Matlab 实现
加窗插值算法 ,降低了算法实现的复杂度 ,无论是在仿
真方面还是在实用上都能达到事半功倍的效果-FFT and window interpolation correction algorithm can better improve the power system
Harmonic measurement accuracy, reduce the error caused by the fence effect. But
The algorithm is more complex, more difficult by programming, and Matlab has powerful
Digital signal processing function, specially for the fast Fourier transform
FFT function and good graphic display function. So the Matlab
Add window interpolation algorithm, reduce the complexity of algorithm implementation, whether in the imitation
True aspect and practical can achieve twice the result with half the effort
Platform: |
Size: 96256 |
Author:jz |
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Description: 采用的是脉冲对消法，独立成分分析算法降低原始数据噪声，虚拟力的无线传感网络覆盖，matlab小波分析程序，插值与拟合，解方程，数据分析，搭建OFDM通信系统的框架，双向PCS控制仿真，基于kaiser窗的双谱线插值FFT谐波分析。- It uses a pulse of consumer law, Independent component analysis algorithm reduces the raw data noise, Virtual power wireless sensor network coverage, matlab wavelet analysis program, Interpolation and fitting, solution of equations, data analysis, Build a framework OFDM communication system, Two-way PCS control simulation, Dual-line interpolation FFT harmonic analysis kaiser windows. Platform: |
Size: 9216 |
Author:beiatanw |
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Description: 电力系统暂态稳定程序，可以进行暂态稳定计算,基于kaiser窗的双谱线插值FFT谐波分析，基于matlab GUI界面设计。- Power System Transient Stability Program, can be transient stability, Dual-line interpolation FFT harmonic analysis kaiser windows, Based on matlab GUI interface design. Platform: |
Size: 7168 |
Author:liesunfeng |
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Search - FFT matlab power system