ellipsefit

说明：  实现了图像的分块操作，比较方便初学者使用(It is the program for image blocking.)

将doubly stochastic matrix分解成一个排列矩阵的集合，并构造其概率分布(The doubly stochastic matrix is ​ ​ decomposed into a set of permutation matrix，at the same time，its probability distribution is constructed.)

用MATLAB对视频中的动态目标进行跟踪检测（包含单目标和多目标）。(Using MATLAB to achieve the detection of moving objects in the video stream, static background single target and multi-target detection.)

matlab下，knn均值算法，可直接调用(matlab under, knn means algorithm, can be called directly)

这是较好的Matlab源代码，希望此代码能对大家有所帮助。(This is a better Matlab source code, I hope this code can be helpful to everyone.)

本程序仿真了AWGN信道下，采用DS扩频对bpsk信号的影响，扩频码采用walsh码，扩频因子16； 接收端进行rake接收，然后分集合并，比较了三种分集方式对误码率的影响 从图像可以看出在扩频因子较高的情况下，最大比值合并与等增益合并性能相近(This program simulates the AWGN channel, using DS spread spectrum signal for bpsk influence spreading code using walsh code spreading factor 16 Rake receiver receiving end, and diversity combining, diversity compares three methods on the bit error rate of As can be seen from the image in the case of higher spreading factor, the maximum ratio combining and equal gain combining similar performance)

求解多元函数问题，将其转化为求极值问题，用matlab求解。(solve the Max or min)

二维kalman滤波：基于Matlab，用Kalman滤波实现线性变化的电压测量滤波处理。其中主要参数为：电压测量方差 u = 0.1V；初始电压ub=10V；电压变化率du/dt = -0.02V/s。(Two-dimensional kalman filtering)

计算单纯的DCT（离散余弦变换）的变换，非常有用(calculator the dct transform s programme,vrey useful for you)

改进cholesky分解，在cholesky分解基础之上进行改进，不需要分解的矩阵正定条件(Improve the cholesky decomposition, cholesky decomposition in the basis for improvement, positive definite matrix conditions without decomposition)