rake

about spech processing

image processing , kirsch filter using matlab code

there is a matlab cod that describe how we can compute poincare map in general for nonlinear differential equation,in dynamical system.

梯度下降法是最早最简单，也是最为常用的最优化方法。梯度下降法实现简单，当目标函数是凸函数时，梯度下降法的解是全局解。一般情况下，其解不保证是全局最优解，梯度下降法的速度也未必是最快的。梯度下降法的优化思想是用当前位置负梯度方向作为搜索方向，因为该方向为当前位置的最快下降方向，所以也被称为是”最速下降法“。最速下降法越接近目标值，步长越小，前进越慢。(The gradient descent method is the earliest and most simple and most commonly used optimization method. The gradient descent method is simple to realize. When the objective function is a convex function, the solution of the gradient descent method is a global solution. In general, the solution is not guaranteed to be the global optimal solution, and the gradient descent method is not necessarily the fastest. The optimization idea of gradient descent method is to use the current position negative gradient direction as the search direction, because the direction is the fastest descending direction of the current position, so it is also called the steepest descent method. The faster the slowest descent approach is closer to the target, the smaller the step, the slower the progress.)

说明：  基于Matlab的BA无标度网络拓扑生成算法，BA模型有两个重要特性：增长特性和优先连接特性。(Matlab based on the BA scale-free network topology generation algorithm, BA model has two important characteristics: growth characteristics and properties of priority connections.)

利用matlab编写的获取单应矩阵的源程序，可用于计算机视觉图像配准等程序中。(Get prepared using matlab homography of the source, can be used for computer vision, image registration and other procedures.)

自己写的matlab 模糊C 举止均值聚类算法 已经调试好的 更改图像的名字可以直接运行(program for fuzzy c means)

creating animation in matlab

说明：  多基时差雷达定位算法。以雷达测量误差分布规律入手，找到从多个地面时差雷达所测数据中找到较为精确的目标位置。对地面雷达的布站原则也有一定意义。(More than the time difference between the radar-based positioning algorithm. To the radar measurement error distribution to start to find the time difference from several ground-based radar measured data to find a more precise target location. Cloth on the ground radar stations have a certain sense principles.)

the MATLAB codes for the well-known modulation techniques.