dd_tools

是基于matlab的二维fdtd计算电磁场理论的一段程序，考虑了pml边界条件，不需要密码(Is based on two-dimensional FDTD calculation matlab electromagnetic theory section of the procedure, consider the PML boundary conditions, does not require a password)

It is again about modulation techniques

Map matching is the process of assigning user s location to the nearest node one a network. Three algorithms of map matching, point to point, point to line and line to line are presented in this document.

介绍了ldpc码的发展概况，历程，各种编解码算法，对初学者有很大帮助(Describes the overview of the development ldpc code, course, a variety of codec algorithm, very helpful for beginners)

说明：  用来产生多变量高斯过程的MATLAB源程序。(MULTI_GP generates a multivariate Gaussian random process with mean vector m (column vector) and covariance matrix C。)

说明：  EM算法代码，利用类电磁机制求解优化问题的优化算法可以达到全局最优的算法，并且不要求目标函数可微(EM algorithm code, the use of the electromagnetic mechanism to solve the optimization problem of the optimization algorithm can achieve the global optimal algorithm, and does not require differentiable objective function)

特征带提取算法，可以很好地提取有用的频带，结果更为准确，CARS_Characteristic带提取.m为主程序，调用程序中的压缩包。(Feature band extraction algorithm, can be a good extraction of useful bands, the results are more accurate, CARS_Characteristic band extraction.m for the main program, call the program in the compressed package)

The goal of SPID is to provide the user with tools capable to simulate, preprocess, process and classify in vivo and ex vivo MRS signals. These tools are embedded in a matlab graphical user interface (GUI). (Pre)processing and classification methods can also be automatically run in a row using the matlab command line

Its a beautiful book explaining the java itext library with suitable examples and many other help topics

mathlab for image processing 2D, DFT, FFT etc.