harmonic-analysis-based-on-matlab

专家PID控制程序，采用MATLAB软件实现(Expert PID control procedures, the use of MATLAB software)

最大指数Lyapunov指数计算方法的程序，比较详细(Maximum index Lyapunov index calculation method of the program, a more detailed)

利用matlba编写的遗传算法工具箱，功能强大，设置简单，运行效率高。非常好用的工具。(Matlba prepared using genetic algorithm toolbox, powerful, easy setup, operation and high efficiency. Very useful tool.)

在计算机上产生一组实验数据，首先产生一段零均值白噪声数据u（n）,令功率为 ，让u(n)通过一个三阶FIR： 得到y(n). .y(n)上加三个实正弦信号f1’=0.1,f2’=0.25,f3’=0.26调整 和正弦信号幅度信噪比大致为10dB,50dB,50dB. (1) 令N=256,描绘xn波形； (2)得出真实功率谱密度 . (3) 利用此实验数据Pisarenko谐波分解法估计该实验数据的正弦频率及幅度。 (On the computer to generate a set of experimental data, first generate a zero mean white noise data u (n), so that power, let u (n) through a third-order FIR: get y (n).. Y (n) added three real sinusoidal signal f1 ' = 0.1, f2' = 0.25, f3 ' = 0.26 and sine signal amplitude adjustment signal to noise ratio is approximately 10dB, 50dB, 50dB. (1) that N = 256, depicted xn waveform (2) the true power spectral density obtained. (3) using this experimental data, Pisarenko harmonic decomposition method to estimate the experimental data of the sinusoidal frequency and amplitude.)

pARTIAL TRANSMIT SEQUENCE is very effective technique for papr reduction in OFDM.It divide OFDM sequence into several disjoint sub sequences and convert to time domain then Combine with complex phase factors to reduce PAPR.In this code matlab simulation of this technique is implemented

说明：  描绘一种绘制图形的方法，在该程序中使用的是极坐标绘图。会出的图形是花瓣形状。(Describe a method of drawing graphics in the program using polar mapping. Will the graphics is petal shape.)

该程序用于matlab读取ENVI标准格式文件，直接运行READFILE，选择需要打开的图像文件即可(The program for the matlab read ENVI standard format files directly run READFILE, select the desired image file can be opened)

neural network coding for image classification

用Matlab实现Kuwahara滤波。(Use Matlab to implement Kuwahara filter.)

this code simulate channel model