搜索资源列表
对轴承故障振动信号的matlab小波分析程序
- 对轴承故障振动信号的matlab小波分析程序，能完成对故障特征频率的提取,Of bearing fault vibration signals matlab wavelet analysis procedures, can finish on the fault characteristic frequency extraction
quadterp.基于FFT的插值频率估计算法
- 基于FFT的插值频率估计算法，matlab代码。,FFT-based frequency estimation algorithm of interpolation, matlab code.
matlab_n.几个Matlab编程示例
- 几个Matlab编程示例，其中包括：单位抽样序列、复正弦序列、离散系统的差分方程、冲激响应和卷积分析、离散系统的频率响应分析和零、极点分布、基于Matlab的数字滤波器设计和FFT算法的应用等。,Some Matlab programming examples, including: random sequence of units, rehabilitation Sine sequences, discrete-time systems of differential equations, i
MATLABprograminfft.用Matlab产生正弦波,矩形波
- 1．用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图 2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选 3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图 ,1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their
ray_chan_two.rar
- 这是一个频率选择性瑞利衰落信道的模型，程序建模为两径。,This is a frequency-selective Rayleigh fading channel model, the program is modeled as two tracks.
matlab
- 数字信号处理综合设计 利用windows下的录音机录制一段自己的话音，时间控制在1秒左右；并对语音信号进行采样，理解采样频率、采样位数等概念。-Digital signal processing integrated design Using Windows, making a video recorder under his voice, time control in 1 seconds And the voice signal sampling frequency sam
matlab
- 基于matlab的时频率分析工具箱，包括了小波变换，WVD，SPWVD等等好多的时频分析方法-Matlab-based time-frequency analysis toolbox, including a wavelet transform, WVD, SPWVD so many time-frequency analysis method
MATLAB
- 对噪声信号中的正弦信号，通过Pisarenko谐波分解方法、Music算法和Esprit算法进行频率估计，信号源是： 其中， ， ， ； 是高斯白噪声，方差为 。使用128个数据样本进行估计。 1、用三种算法进行频率估计，独立运行20次，记录各个方法的估计值，计算均值和方差； 2、增加噪声功率，观察和分析各种方法的性能。-Sinusoidal signal in the noise signal through the Pisarenko harmonic decomposition metho
FIRdesign
- FIR数字滤波器的设计方法主要是建立在对理想滤波器频率特性作某种近似的基础上的。这些近似方法有窗函数法、频率抽样法、最佳一致逼近法。在这里只讨论窗函数法。程序中也是采用了这种方法。-FIR digital filter design method is mainly based on the frequency characteristics of the ideal filter for some kind of approximation on the basis of. These app
matlab
- 实验指导 低通采样定理实验 FFT频谱分析实验 IIR滤波器设计实验 窗函数法FIR滤波器设计 频率采样法FIR滤波器设计实验-Experimental guide low-pass sampling theorem FFT spectrum analysis experiment experiment experiment IIR Filter Design Window Function FIR filter design frequency sampling FIR filter desi
frequency_characteristics
- 控制系统仿真中的频率特性的MATLAB源码-Control System Simulation of the frequency characteristics of the MATLAB source code
RifeJane
- rife-jane频率插值算法,用于频率的估计,在FFT的离散频谱值上进行频率估计.-rife-jane frequency interpolation algorithm for frequency estimation, the FFT spectral values on the discrete frequency estimation.
matlab
- 小波分析用于FSK信号的频率检测，非常好用的！-Wavelet analysis of the frequency of detection for the FSK signal, very nice!
MATLAB
- 基于 MATLAB 的语音信号分析与处理的课程设计.录制一段自己的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用窗函数法或双线性变换设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的语音信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号-MATLAB-based voice signal analysis and processing of the curriculum. Re
MATLAB
- 这个一个进行频率检测的程序，简单实用，欢迎大家下载学习-The frequency of detection of an ongoing program, simple and practical, are welcome to download the study
matlab-fliter
- 用 matlab实现均值滤波去高斯白噪声 用 matlab实现中值滤波去噪声 用理想低通滤波器在频率域实现低通滤波-Mean filter with matlab to implement Gaussian white noise with median filter matlab to achieve the ideal low-pass filter with the noise in the frequency domain low pass filter
simulation-piano-keyboard-in-Matlab
- 使用matlab编程GUI界面模拟琴键，点击GUI按钮发出相应频率的声音-Simulation using matlab programming GUI interface keys, click on the GUI button corresponding frequency sound issue
MATLAB
- 电力系统中由于采用了很多电力电子设备，引入了大量谐波，致使电能质量降低，改程序可以求出谐波的幅值，频率和相位-Spectrum analysis
sy4
- 频率估计，用了最基本的Rife算法，和导数法。同时计算了平均频率和均方差值(Frequency estimation, using the most basic Rife algorithm and derivative method. The mean frequency and mean square difference are also calculated)
matlab仿真下变频源程序
- matlab 仿真下变频源程序 f0=20e6;%模拟信号中频 f1=10e6;%数字本振频率 fs=40e6;%采样频率(digital down convertion)