GA_C_code

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(Conjugate Gradient method (Conjugate Gradient) is between the steepest descent method between Newton method and a method, it only USES a derivative information, but overcome the steepest descent method slow convergence of weakness, but also avoid the Newton law needs to storage and computing Hesse inverse matrix and shortcomings, Conjugate Gradient method is not only solve linear equations with most of the large method, and also one of the most effective solution large nonlinear optimization of one of the algorithm. In all kinds of optimization algorithm, the conjugate gradient method is very important. Its advantage is the storage capacity needed, it has small step convergence, high stability, and doesn t require any exotic parameters numerical experiment, this is the modern scientific computing of the answer above problem sets)

改进的背景差分法，结合了背景差分法和帧间差分法的优点，能更好的进行视频处理。(Improved background subtraction method, combining the advantages of the background difference and frame difference method, and better video processing.)

国外经典LBM D2Q9 D3Q19模型的matlab程序，亲测可用。可用于渗流场和热传递模拟。自己根据需要修改模型。引用时记得注明出处。版权问题概不负责。(Foreign LBM D2Q9 D3Q19 model matlab procedures, pro-test available. It can be used for seepage and heat transfer simulation. Make changes to the model as needed. Remember when referring to attribution. We are not responsible for copyright issues.)

uploaded the polar codes for cooperative relay networks and the same can be used for compression

说明：  一个用MATLAB实现的CA滤波模型，适合初学者，文件不长稍微有点基础的都能看懂(A the CA filter model using MATLAB, for beginners, file does a little bit of foundation can understand)

说明：  自己根据K-MEANS思想在MATLAB下实现的彩色图像分割算法程序，用最普通的语句实现，通俗易懂。可以直接用于对彩色细胞图像的分割，分割结果比较准确，(K-MEANS in accordance with their own ideas in MATLAB to achieve color image segmentation algorithm based on the procedures used to achieve the most common statement, user-friendly. Can be directly used for color cell image segmentation, more accurate segmentation results,)

说明：  对比了dv-hop基本算法，和加入pso后得算法。由于结果是随机产生的，不能保证每次得结构都能提高，但大部分时候，比基本算法得定位准确度好。(DV hop algorithm is compared with PSO algorithm. Because the results are generated randomly, it can not be guaranteed that every time the structure can be improved, but most of the time, the positioning accuracy is better than the basic algorithm.)

Computes the DFT of N real values and returns the first N/2+1 DFT coefficients. N is an integral power of two.

program for distribution stimation of speech

说明：  Canny算子 Canny 算子是一种比较新的边缘检测算子，具有很好的边缘检测性能，得到了越来越广泛的应用。(Canny operator Canny operator is a relatively new edge detection operator, has good edge detection performance has been more widely used.)