Stiction

这是 一个界面 内完成 数字信号发生器、电子琴、电话机按键、信号合成的代码，基于MATLAB，相比 多界面 的有自己的特色，请参考！(This is a complete digital signal generator interface, keyboard, telephone keypad, the code signal synthesis, based on MATLAB, more than the interface has its own characteristics, please refer to!)

相信做PWM的同学看见这个比较高兴，希望可以对您有帮助，谢谢支持。(PWM do believe that the students see the comparison that he hopes can be helpful to you, thank you support.)

对一组滚动轴承振动信号做分数阶排列熵计算达到诊断的目的。(For a group of vibration signals do Fractional permutation entropy calculation diagnostic purposes.)

该代码描绘了服从正态阴影模型的路径损耗和自由空间的路径损耗。并且添加了阴影产生的随机效应。(The code depicts shading model subject to normal free-space path loss and the path loss. And add a shadow generated random effects.)

控制系统计算机辅助设计——MATLAB语言及应用 主要的一些源程序(control system for matlab)

This is the program to do the phase rotation in matlab for seismic data

小波分析的相关函数，包括很多构造仿真信号的函数，对于初学小波分析的人很有帮助(Wavelet analysis of the correlation function, including many functions constructed simulation signal for beginners who wavelet analysis helpful)

1. 给一段原始的语音信号（可以是自己录制的一段语音），加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声（幅度自己可以选择），用窗函数设计一滤波器（要求最小阻带衰减为50dB）对加噪后的语音信号进行滤波，画出滤波器的频率响应曲线，画出滤波前后的时域图和频谱图。 需要用到的函数： fir1 用窗函数设计FIR滤波器的函数 2. 用GUI设计一界面（如图1所示）完成如下功能： 1） 输入一语音信号，画出语音信号的时域图和频谱图； 2） 对语音信号加噪处理，画出加噪后的时域图和频谱图； 3） 给定滤波器的性能指标，采用几种不同的方法设计滤波器对加噪信后进行滤波，画出各滤波器的频率响应曲线，画出滤波后的时域图和频谱图。 (1. to some of the original speech signal (which can be a voice you record yourself), plus a cosine frequency of 3.8kHz frequency noise and frequency of 3.6kHz frequency sinusoidal noise (in the range that they can choose), with a window function to design a filter (requires a minimum stop band attenuation is 50dB) after adding noise to the speech signal is filtered, the filter frequency response curve to draw, draw diagrams and time-domain spectrum before and after filtering. Need to use the function: function fir1 with window function design FIR filter design 2. Using a GUI interface (Figure 1) complete the following functions: 1) an input speech signal, the speech signal in the time domain to draw graphs and spectrum 2) adding noise to the speech signal processing, draw diagrams and time-domain plus noise spectrum after 3) to set the filter performance, using several different methods designed to filter letter after adding noise filtering, draw the frequency response curve of each )

牛顿法求解非线性方程Matlab编程实现(Newton method for solving nonlinear equations Matlab programming )

This code is about fault designing.It is useful for geophysists.