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a simple method of pca. how to find mean and to normalize data

该算法是在去除模糊图像中噪声的算法，处理后取得了很清晰的图像，是图像处理的一项重要内容。(The algorithm is to remove noise in images blurred by the algorithm, after obtaining a very clear image, is an important part of image processing.)

Bootstrapping Fuzzy-GARCH Regressions on the Day of the Week Effect in Stock Returns

Sine pdf for users that work in the domain of signal processing. help how to improve the process and work

光纤光栅振动传感器的悬臂梁参数优化，包括四个变量，显示频率变化和灵敏度(optimization of FBG sensor)

递归函数调用示例。使用switch case语句实现切换编程回调结构。(Example of a recursive function call. Achieved using the switch case statement to switch programming callback structure.)

非线性扩展卡尔曼滤波算法的matlab程序(Description:This is a tutorial on nonlinear extended Kalman filter (EKF). It uses the standard EKF fomulation to achieve nonlinear state estimation. Inside, it uses the complex step Jacobian to linearize the nonlinear dynamic system. The linearized matrices are then used in the Kalman filter calculation. The complex step differentiation seems improving the EKF performance particularly in accuracy such that the optimization and NN training through the EKF are better than through the UKF )

说明：  雷达模拟程序，图像界面，在不同版本的MATLAB运行时需要调试。(Radar simulation program, image interface, need to be debugged in different versions of MATLAB.)

Matlab code for bit error rate of 1.BPSK 2.QAM in guassian channel 3.QAM in rayleigh channel 4.QPSK in guassian channel 5.QPSK in rayleigh channel

异步电动机数量控制完整仿真模型，可以根据实际情况写该参数，达到研究者所需要的情形(The number of complete induction motor control simulation model, the parameter can be written according to the actual situation, the researchers needed to achieve the situation)