writting-fast-matlab-code

基于MATLAB的数字图像处理的分析，包括图像显示，图像平滑，图像锐化，等(MATLAB-based analysis of digital image processing, including image display, image smoothing, image sharpening, etc.)

说明：  小球碰撞动画，实现小球与大球在碗中碰撞的动画演示(Ball collision animations to achieve a small ball and big ball in the bowl animation of the collision)

无迹卡尔曼滤波UKF是重要的非线性滤波方法。它采用UT变换的方法，不再近似系统的非线性方程，它仍然用高斯随机变量表示状态分布，不过是用特定选择的样本点加以描述，每个点叫一个高斯点，它从系统状态的概率密度函数中取出；然后，按系统的真实模型演化，得到非线性演化后的σ点，使得样本均值和样本方差是真实均值和真实方差的好的近似。 在这个程序中，实现了基于UKF的滤波方法，并且建立了两种仿真环境进行实验。(Unscented Kalman filter UKF is an important nonlinear filtering method. It uses the UT transformation method, no similar system of nonlinear equations, it still says the state with the Gaussian distribution of random variables, but the specific choice is to describe the sample points, each point is called a Gaussian point, it is from probability density function of the system state to remove then, according to the true model of evolution of the system obtained after the nonlinear evolution of σ point, making the sample mean and sample variance is true variance of the mean and the true good approximation. )

在对角元没有作用的情况下，提取三对角矩阵(get a tridiagonal matrix )

利用FFT快速计算，线性排列阵子方向图。( This function computes and returns the gain radiation pattern for a linear array It uses the FFT to computes the pattern *INPUTS********** Nr ==> number of elements dolr ==> element spacing (d) in lambda units divided by lambda theta0 = steering angle in degrees winid ==> use winid negative for no window, winid positive to enter your window of size(Nr) win is input window, NOTE that win must be an Nr X 1 row vector nbits ==> number of bits used in the pahse shifters negative nbits mean no quantization is used *OUTPUTS****************** theta ==> real-space angle patternr ==> array radiation pattern in dBs patterng ==> array directive gain pattern in dBs ***************************************** )

基于蚁群算法的最优潮流计算，包含m文件及源代码(The optimal power flow calculation based on ant colony algorithm, including m file and source code)

不需要用两个ask信号就可以产生fsk信号.可以设置频率和码元速率(to generte fsk)

基于MATLAB的实现智能天线的LMS算法(MATLAB-based implementation of the LMS algorithm for smart antenna)

对配电系统多节点的优化并将其对比，使配电系统的节点优化更方便快捷(Multi-node distribution system optimization and contrast, so nodes to optimize the distribution system more convenient)

基于神经计算的增量式PID控制器学习算法。被控对象为非线性控制系统。(keyword：PID controller 、 neural network、MATLAB )