单个圆形活塞换能器指向性

matlab画三维凸包，根据一些离散点，效果非常好(Matlab draws three-dimensional convex hull, according to some discrete points, the effect is very good.)

说明：  MATLAB实现二级倒立摆稳摆过程，用MATLAB进行仿真建模，并做角度位置分析(MATLAB realizes the stabilization process of double inverted pendulum)

说明：  混响器的MATLAB实现：利用MATLAB/SIMULINK软件实现混响器(Realization of reverberator with MATLAB)

MATLAB神经网络案例分析 BP神经网络的数据分类-语音特征信号分类(MATLAB BP Neural Network - Classification of Speech Characteristic Signals)

说明：  abaqus纯镁切削算例文件，可直接计算(ABAQUS pure magnesium cutting example file can be directly calculated)

说明：  PID控制的水轮机调速器 simulink模型(Simlink Model of Hydraulic Turbine Governor Controlled by PID)

三相永磁同步电机的滞环电流控制仿真模型，控制瞬态电流输出。(Simulation Model of hysteresis current Control for Three-phase permanent Magnet synchronous Motor)

单相半桥式跟踪PWM逆变器仿真，电流滞环跟踪控制(Single phase half bridge tracking PWM inverter simulation, current hysteresis tracking control.)

如何在fluent中改变边界条件类型，使用UDF控制。(How to change the boundary condition type or value using a UDF)

对于非线性模型的跟踪预估问题，摒弃额对非线性函数进行线性化的做法，采用无迹变换处理均值和方差的非线性传递问题。(For the tracking and prediction problem of the nonlinear model, the linearization of the non-linear function is abandoned, and the traceless transformation is used to deal with the non-linear transfer of mean and variance.)