voice

建立cdma蜂窝小区模型（分成小区内用户和区外用户），对初次接触CDMA信道模型编码的初学者，有很大的指导作用(Building cdma cellular cell model (divided residential users in and outside users), on the initial contact with CDMA channel model coding beginner, there is a great guide)

利用matlab编程实现解线性方程组的迭代法。(using Matlab programming for solving linear equations of iterative method.)

说明：  皮肤检测程序，弄一张皮肤组合图定义为sample.jpg就可以使用(Skin testing procedures, get a skin graph is defined as the combination can be used sample.jpg)

Matlab上实现用类实现snake算法(snake：class)

频率估计问题一直是研究的热点。此为一个相位差法估计频率的程序代码，可供学习参考。(Frequency estimation has been the research focus. This is a phase difference method to estimate the frequency of the program code, for learning reference.)

一个自己整理的CIC梳状滤波器和调试数据。主要功能是可以滤除谐波。 方便好用，调整输入参数和数据源即可。(A CIC filter and the coresponding data. Parameter input and file name changes are the only you to do for your fun.)

说明：  能够实现对实验数据的降维，为故障分类做准备(It can reduce the dimension of experimental data and prepare for fault classification)

分数阶傅里叶变换(Fractional Fourier Transform, FrFT)，实现线性调频(LFM)信号的参数估计(调频斜率和初始频率)。由粗到细搜索分数阶傅里叶变换的阶数。需要到网上自行下载一个工具函数frft.m.(It is about estimationg the frequency modulation rate and initial frequency of linear frequency modulation (LFM) signal using the fractional Fourier transform (FrFT).It need a function frft.m which could be found in the internet.)

《navigaiton signal processing for gnss》一书的源代码，对于gps开发非常实用(《Navigaiton signal processing for gnss》 books source code, very useful for the development gps)

说明：  实现人脸检测的功能，对合适大小的图像，将其放在相应的matlab文件夹下即可自动进行人脸检测并定位。(For face detection function, the size of the image on the right, put it in the appropriate folder automatically matlab for face detection and localization.)