ldpc

Neighborhood rough set based feature evaluation and reduction

马尔可夫链中的模型中的解码问题，用后向算法是简单有效的算法(HMM-BACKWORD)

人脸识别，简易的人脸识别程序，用matlab编写。(face detection)

四阶龙格-库塔法的MATLAB实现,给出了程序源代码。(Fourth-order Runge- Kutta method MATLAB implementation)

说明：  用MATLAB对一图象分别用单尺度和二维小波分解，观察各高低频部分，对图象进行重构和压缩。(MATLAB image of a single yardstick were used and two-dimensional wavelet decomposition, the high-low frequency observation, right image reconstruction and compression.)

hi why hi you are not to be a big sandwich of the hamburger pitta chips or waterfall

在MATLAB平台下，利用龙贝格公式和高斯公式，求解数值积分，源码(In the MATLAB platform, using Romberg formula and the Gauss formula, solving numerical integration, source code)

说明：  美国著名教授agrawal写的非线性光学原理及应用，是一本很好的学习非线性光学的书籍，里面包含了中文和英文版本(Written by American professors agrawal nonlinear optics and applications, is a good learning books on nonlinear optics, which includes the Chinese and English version)

根据航母海上运动具有平稳随机过程的特点，利用功率谱模型对其进行建 模，尽可能真实地反映航母的运动状况。分析甲板运动带来的理想着舰点的变化，针对舰载机飞行高度进行模糊控制。按照舰载机自动着舰控制系统的大致结构，从内而外依次对自动飞行控制系统、进场功率补偿系统、甲板运动补偿器进行了研究和设计，在Matlab中对其进行完整建模，并通过仿真加以验证。设计模糊PID控制器，利用模糊控制系统对控制器参数进行在线调整，最后通过Matlab仿真，验证该方法可以有效改进舰载机的着舰品质。(According to the aircraft carrier Marine sport has stable random process characteristics, the use of power spectrum model on the modeling, as a true reflection of carriers movement status. Analysis of the deck movement to bring the ship to point ideal for change, the flying height carrier-borne machine fuzzy control. According to the ship carrier-borne machine automatic control system, the general structure of automatic order from inside and outside the flight control system, approach power compensation system, deck sports compensator was studied and design, the in Matlab simulation modeling and complete verified. Design fuzzy PID controller by using fuzzy control system, the controller parameters for online adjustment, the last through Matlab simulation show that the method can effectively improve the quality of the ship carrier-borne machine. )

复杂网络的蓄意攻击，蓄意攻击是攻击度最大的节点(Deliberate attack complex networks, deliberate attack is an attack of the largest node)