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专家PID程序主要是针对受控对象和各种规律已知情况的一种智能程序(Expert PID program is mainly directed against the known laws of the controlled object and a variety of circumstances an intelligent process)

matlab绘制多种二维数据曲线图，三维曲线图，图像处理及动画制作。(matlab draw a variety of two-dimensional data graph, 3D graph, image processing and animation.)

matlab file for beamforming considering four linear array elements

利用求根MUSIC算法进行ＤＯＡ估计的源程序(Root MUSIC algorithm using the DOA estimation of the source)

matlab code for Learning the Extended Kalman Filter

说明：  麻雀搜索算法(Sparrow Search Algorithm, SSA)是于2020年提出的。SSA 主要是受麻雀的觅食行为和反捕食行为的启发而提出的。该算法比较新颖，具有寻优能力强，收敛速度快的优点(Sparrow search algorithm (SSA) was proposed in 2020. SSA is mainly inspired by the foraging behavior and anti predation behavior of sparrow. The algorithm is novel and has the advantages of strong optimization ability and fast convergence speed)

说明：  马氏距离的仿射不变性删除误匹配特征点 对，据此可求取2幅源图像间的仿射变换参数(Mahalanobis distance of the affine invariant features remove the false matching points Yes, according to the source to obtain two parameter affine transformation between images)

分别用理论计算和计算机模拟计算，求连续掷两颗骰子，点数之和大于6且第一次掷出的点数大于第二次掷出点数的概率。(Were used to calculate the theoretical calculations and computer simulations, seeking continuous throwing two dice, and more than six points of the first throw and the number of points is greater than the probability of the second throw points.)

数据平滑方法，几个方法各有优点。里面有说明。(Data smoothing method, several methods have their advantages)

BPSK的软解调算法，可用于软解调和信道译码的软信息输入。(soft demodulation of BPSK)