ja20131006

北理工信号考研笔记，有需要的人可以下下来看看(North Polytechnic signal Kaoyan Notes)

对周期法提取谱特征的matlab编程的代码说明教材，及对此编程的优化代码(Extraction of spectral characteristics of the cycle of matlab programming code that shows teaching materials, and the optimization of the code of this program)

Region filling and Growing-Logic

先随机找寻一个合理的初始划分，然后试探将样本从一个群搬到另一个群，如果某次搬动能使准则函数值得到改进的话，则继续搬运，否则废除本次搬运，再继续其他搬运。(Randomly and find a reasonable initial division, and then test the sample from a group of moving to another group, if a move can make the criterion function is worth to improve, it continues to handling, otherwise the abolition of the handling, continue to other handling.)

matlab code for face recognition

力矢量算法实现的画图程序，编写环境matlab， 3D 本人原创 (force-oriented graph drawing algrithm, 3D, computer science applied)

说明：  同态滤波使图像亮度较暗的区域变得可见，而高亮区也变得更加清晰，对比度增强，图像可视化程度增加。(homomorphic filtering )

可以实现QPSK解调的matlab代码，希望对大家有所帮助(realize QPSK mode)

This script selects the best fit according to BIC and AIC criterions.

matlab code for modelling