Lesson-3

FIR DF 等波纹切比雪夫逼近 Remez算法 交错定理 MATLAB仿真(FIR DF；equivalent ripple Chebyshev approxiIllation；Remez algorithm；intervning theorem MATLAB simulation)

采样定理的验证，即采样信号的频率大于等于原信号频率的两倍时才能准确的恢复原信号(Verification sampling theorem, the sampling frequency of the signal frequency is greater than or equal to twice the original signal in order to accurately restore the original signal)

this code identify language of you type (beetwen arabic and farsi language) with n-grams

解相关matlab多用户检测，基于matlab(Decorrelating multiuser detection matlab, matlab-based)

matlab与数据库连接，选取数据库中的目标红外谱图，提取其波峰，并把波峰值返回到数据库中，存入新建的表中(matlab with the database connection, select the target database, infrared spectrum, extraction of the crest and the wave peak to return to the database, into the new table)

Modeling crack growth in a traditional finite element framework is a challenging engineering task. Originally the finite element framework was modified to accommodate the discontinuities that are caused by phenomena such as cracks, inclusions and voids. The finite element framework is not well suited for modeling crack growth because the domain of interest is defined by the mesh. At each increment of crack growth, at least the domain surrounding the crack tip must be remeshed such that the updated crack geometry is accurately represented.

This is the matlab code of improved LEACH. It describe the raffinement of LEACH protocol

最经典的分簇路由LEACH，用matlab实现( a classic clustering routing for wireless sensor networks)

说明：  Household变换，利用仿真数据进行ftt，最小二乘法的多项式拟合(House transform, polynomial fitting of FTT and least square method with simulation data)

说明：  systemview仿真：(7,4)汉明码编译码器(systemview simulation: (7,4) Hamming Code Codec)