SpeckleSize

本书是一本matlab经典的基础教程，名叫《MATLAB揭秘》，非常适合初学者学习。(This book is a classic basis for matlab tutorial, called " MATLAB Reveal" , ideal for beginners to learn.)

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 )

该软件包包含了一些常用的matlab小程序，可以直接调用，省去了编程的麻烦。(This package contains some common matlab applet, you can directly call, eliminating the hassle of programming.)

Semi-supervised learning

用双线性变换法设计BW型或CB型的不同类型（低通、高通、带通）的数字滤波器求出系统的单位脉冲响应h(n)(Bilinear transform design BW or CB-type (low pass, high pass, band-pass) digital filter to find the system unit impulse response h (n))

the mppt algorithm file

Hamming code in matlab.

利用DFA法计算时间序列Hurst指数..(Calculate the time series of HURST index by DFA)

用matlab描述的层次分析的代码，它是一种先分解后综合的算法(The the analytic hierarchy described using matlab code, it is a first decomposition comprehensive algorithm)

MATLAB CODE FUNCTION CASCADE DETECT FACE AND RECOGNITION