Zoom-Strips-Plot

信息系统的盲目删除属性约简算法，采用matlab实现(Information system blindly delete attribute reduction algorithm implementation using matlab)

说明：  用MATLAB实现对一语音信号用不同小波进行分解，提取各层的高低频系数，画出各系数波形，并重构。(MATLAB voice signal to a different wavelet decomposition, from the high levels of low-frequency coefficients. he painted the waveform coefficients, and Reconstruction.)

spatio-temporal Local Phase Quantization Three Ortogonal Planes (LPQ-TOP)

SIR calculation given power matrix and service nodes association information

利用MATLAB作为编译工具，将高维空间数据投影到低维空间。。(Using MATLAB as the compilation tools, data projection of high-dimensional space to low-dimensional space. .)

XFEM扩展有限元模拟二维裂纹动态扩展，由哈弗大学一个研究小组开发，非常值得学习(XFEM extended finite element simulations of two-dimensional crack dynamic propagation, developed by a team at Harvard University, is worth learning)

多变量输入、输出、多干扰、非线性和强耦合的复杂系统控制是一个比较困难的问题，常用的控制器可能因为多变量耦合问题难以控制系统。PID神经元网络是一种多层前向神经元网络，它的各层神经元个数、连接方式、连接权值是按照PID控制规律的已有原则和经验确定的，是一种动态的符合控制系统的前向网络。但是由于PID网络初始权值随机取值的原因，每次控制的效果都有所差别，个别情况下控制效果还比较差。本案例研究了基于PID神经元的多变量耦合系统控制，并用PSO算法来优化控制器以取得更好的控制效果。(Multivariable input, output, and more interference, complex nonlinear and strong coupling system control is a more difficult problem, commonly used multivariable controller may be because the problem is difficult to control the coupling system. PID neural network is a multi-front to neural networks, its number of neurons in each layer, connection, connection weights are in accordance with the existing principles and experience to determine the PID control law is a dynamic compliance before the control system to the network. However, due to the random initial weights of the network PID values ​ ​ of reason, every time there are differences in the effect of control and in some cases the control effect is still relatively poor. This case study of multivariable coupling system based on PID control neurons, and with PSO algorithm to optimize the controller to achieve better control effect.)

这是Simulink关于FFT显示的模型。希望对初学者有用。(This is the Simulink model of FFT display. Hope useful for beginners. )

How to create a modulated 64-QAM signal

一个编译logmmse的Mfile，可以音频净化，噪音处理以及噪音识别，比通常的wiener filter效果要好，而且实现时间短(logmmse implementation)