TRETE

this file contains some m-files about calculating the fractional fourier transform

in this folder contains the import the picture and how to find the effects. how to read the image and how to show the images.

在很多图像处理的过程中，需要判别一个图像的清晰度，和图像分割结果的优劣，于是就引出了信息熵的概念，绝大多数时候，它都被用来作为评价图像的一个量化标准。(In many image processing processes, it is necessary to distinguish the clarity of an image and the result of image segmentation, so the concept of information entropy is introduced. Most of the time, it is used as a quantitative standard to evaluate the image.)

此程序代码为基于遗传算法的PID整定，利用MATLAB编程实现。该程序通过遗传算法实现参数寻优，是一种不需要任何初始信息并可以寻求全局最优解的、高效的优化组合方法。(this procedure code based on genetic algorithms for PID tuning, using MATLAB programming. The procedures through genetic algorithm optimization of the parameters. is a not need any initial information and can find the global optimum, efficient optimization method.)

闭环MIMO系统中的预编码技术块对角化程序，主要是误码率(loop MIMO system of pre-coding technology to block diagonalization procedure is mainly BER)

说明：  通过BP神经网络实现对导弹运动轨迹的预测(Prediction of missile trajectory by BP neural network)

利用时域有限差分法(FDTD法)对三维时谐电磁场进行模拟(Using finite difference time domain method (FDTD method) of three-dimensional time-harmonic electromagnetic field simulation)

说明：  冈萨雷斯（matlab）书中源代码全载。(Gonzalez (matlab) the book contains all the source code.)

matlab熵，联合熵和互信息的程序，亲自测试过(entropy,mutual information entropy,good matlab code,play enjoy)

利用压缩感知理论进行DOA估计，利用了OMP算法，性能很好(DOA estimation using compressed sensing theory)