matrix-power

one of the best ways to have a blind channel estimation is using a precoding after before IDFT operation in OFDM systems,this simulation shows the precoding infulence on the system.

利用matlab计算三维光子晶体带隙的fdtd算法(calculated using Matlab 3D photonic bandgap of the algorithm fdtd)

sift图像匹配matlab仿真程序，实现sift图像匹配功能，并且效果卓越(sift image matching matlab simulation program)

通过遗传算法计算下列函数的全局最优值 y(t)=(x2(t)-5.1/(4*pi*pi).*x1(t).^2+5/pi.*x1(t)-6).^2+10.*(1-1/(8*pi)).*cos(x1(t))+10(Global calculate the following functions by genetic algorithms optimal value y(t)=(x2(t)-5.1/(4*pi*pi).*x1(t).^2+5/pi.*x1(t)-6).^2+10.*(1-1/(8*pi)).*cos(x1(t))+10)

平面波展开法计算的二维声子晶体带隙，分别是正方与圆形散射体形成正方格子声子晶体，最后输出了能带图的数据，需要自己用画图软件画出来。(Plane wave expansion method to calculate the band gap of two- dimensional phononic crystals, which are square with rounded square lattice formed scattering crystal, the final output of the energy band diagram of the data, so you need to use drawing software drawn.)

说明：  CIE 1931 色度图系统绘制，无弧形坐标轴与白色奇点，色度分布一般，无温差线，有待改进(CIE 1931 Chromaticity Map System Drawing, No Arc Coordinate Axis and White Singularity, General Chromaticity Distribution, No Temperature Difference Line, Need to be Improved)

高斯噪声环境下宽带矢量信号仿真(Gaussian noise environment simulation of broadband vector signal)

用于最小二乘法解非线性方程 以仪器精度理论5-8为范例(For the least-squares method for solving nonlinear equations example of instrument precision theory 5-8)

We have modified the leach algorithm to introduce effi cient cluster head replacement scheme and dual transmitting power levels

this code reduce the dimentional of feature space using combine sparse matrix+PCA for classification eeg signal. more detail exixst inside the code. this code tested and work properly