signal-and-system-experiment

伪随机序列与扩频通信方面的实验程序，虽然只有一个程序但是有通讯实现的全过程(Pseudo-random sequence spread spectrum communications with the experimental procedure, while only a program but the whole process of communication to achieve)

说明：  在数学建模当中，粒子群算法的通用案例，只需要修改核心算子——适应度即可。(In mathematical modeling, the general case of particle swarm optimization only needs to modify the core operator fitness.)

MATLAB内置二重积分 可以实现二重积分等功能(MATLAB built-in double integral)

pca的matlab程序，提取特征值大于1的主成份(pca matlab program, the main ingredient extracted with eigenvalues ​ ​ greater than 1)

利用matlab的gui设计的带有输入和输出功能的界面图形，实现等距线可视性很强，自己独立编写的数据和图形，学习非常值得,实现 ga pca bp和svm压缩图像，matlab语言(Using GUI of MATLAB to design interface graphics with input and output functions, realizing the visibility of isometric line is very strong, and it is very worthwhile to study the data and graphics independently written by oneself, realizing GA PCA BP and SVM compressed image, MATLAB language)

matlab灰色模型程序，关于水压程序。(matlab gray model)

说明：  dfydrtyrt df d erzftg zer ter ter

这是一个关于pid控制算法的程序，主要用于控制一阶线性时滞系统(This is a process pid control algorithm, mainly used to control the first-order linear time-delay system)

基于粒子群算法的比例积分微分控制算法，很不错(Particle swarm algorithm based on the proportion of integral differential control algorithm, is very good)

肌电信号高低滤波算法与50Hz陷波器算法，仿真已通过(The EMG high-low filter algorithm and 50Hz notch filter algorithm have been simulated.)