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matlab编写结构计算振型分解法，能求解多自由度问题，自动绘出振型(the preparation of structural calculations matlab vibration mode decomposition method to solve the problem of multi-degree of freedom, automatic mapping mode shape)

厦门大学数值分析课件。基于matlab实现。(Courseware for Numerical Analysis of Xiamen University. Matlab-based implementation.)

说明：  该程序包括了通信系统的相关仿真程序（matlab），并给出了QPSK、MPSK、BPSK等调制方式的相关matlab仿真程序。(The procedures include the communications system simulation related procedures (Matlab), and gives a QPSK, MPSK, such as BPSK modulation of Matlab simulation program.)

说明：  门限协整预测的MATLAB代码，非常新，国外大学实验室课题里面找到。(Threshold cointegration forecast MATLAB code, very new, foreign university laboratory subjects to find something.)

又一个simulink的ppt,对于初学simulink 的人可能有用，不过太简单了。(also a Simulink ppt for the novice Simulink may be useful But too simple.)

matlab simulation program for MSK transmission systems

实现了PCM编码->基带码型转换（NRZ to HDB3）->QPSK调制->高斯信道->QPSK解调->基带码型反转换（HDB3 to NRZ）->PCM解码。同时给出了误码率曲线。(Achieve a PCM coding-> Baseband code converter (NRZ to HDB3)-> QPSK Modulation-> Gaussian channel-> QPSK demodulator-> anti-baseband conversion pattern (HDB3 to NRZ)-> PCM decoding. Also shows the BER curves.)

蒙特卡洛算法也常用于机器学习，特别是强化学习的算法中。一般情况下，针对得到的样本数据集建立相对模糊的模型，通过蒙特卡洛方法对于模型中的参数进行选取，使之于原始数据的残差尽可能的小。从而达到建立模型拟合样本的目的。(Monte Carlo algorithm is also commonly used in machine learning, especially in reinforcement learning algorithm. In general, a relatively fuzzy model is established for the obtained sample data set, and the parameters in the model are selected by Monte Carlo method so that the residual error of the original data is as small as possible. Thus, the purpose of establishing the model fitting sample is achieved.)

灰色模型的背景值和求导过程的联合优化，效果非常不错(Joint optimization model and gray background value derivation process, the effect is very good)

永磁同步电机双闭环控制系统的滑模控制算法研究。(The slide control of PMSM.)