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卷积码vitebi译码的matlab程序(Decoding convolutional codes vitebi matlab program )

LDGM decoder function for Matlab.

OFDM simulation using matalab. (Orthogonal Frequency Division Multiplexing technology for cognitive radio!!!!)

Matlab applications it is often necessary to create vectors, to delete elements of given vectors, to substitute elements in given vectors, to append vectors or to insert a given vector into another vector. All these methods are discussed in this short tutorial. The corresponding m-files are available.

使用M语言编程的PLL程序，可以快速的实现对相位的锁定。(PLL using the M programming language program, you can quickly lock the phase of realization.)

说明：  共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(The Conjugate Gradient method is a method between the steepest descent method and the Newton method. It only needs to use the first derivative information, but overcomes the shortcomings of the steepest descent method and avoids the need for the Newton method to store And the calculation of Hesse matrix and the inverse of the shortcomings, conjugate gradient method is not only to solve large-scale linear equations one of the most useful methods, but also solution for large-scale nonlinear optimization of one of the most effective algorithm. In a variety of optimization algorithms, conjugate gradient method is a very important one. The advantage is that the required storage capacity is small, with step convergence, high stability, and does not require any external parameters.)

牛津大学开发的matconvnet工具包，可以生成vgg，alexnet等等模型，imagenet，mnist多种数据集可以跑(Oxford University developed matconvnet toolkit can generate vgg, alexnet etc. model, imagenet, mnist multiple data sets can be run)

用MATLAB实现频域平滑滤波以及图像去噪代码，可以实现数字图像处理及去噪(Smoothing filter frequency domain using MATLAB and image denoising code can achieve the digital image processing and denoising)

说明：  基于matlab，用yalmip工具包调用cplex求解电力系统机组组合问题，程序可运行(Based on MATLAB, using yalmip toolkit to call CPLEX to solve the unit commitment problem of power system, the program can run)

K-Means聚类算法 Matlab代码(K-Means)