Toolbox of time-frequency analysis for MATLAB

说明：  利用MATLAB/Simulink搭建的三电平逆变器仿真电路，利用模型预测控制方法进行控制，可以实现中点点位平衡，对研究模型预测控制有一定学习作用。(The simulation circuit of three-level inverter built by MATLAB/Simulink and the control by model predictive control method can realize the balance of mid-point and point, which has a certain learning effect on the study of model predictive control.)

ABAQUS dload子程序，应用于动、静力学计算。(ABAQUS dload subroutine which is applied to dynamic and static calculation.)

说明：  该软件以函数化方式表示微结构换能元的边界，生成微结构换能元电热耦合仿真计算的ANSYS命令流，获得微结构换能元的电流密度、温度分布、温度梯度、电压分布等参量。该软件的技术特点在于，集成了直接耦合的微结构换能元电热耦合仿真计算方法，适用于V型边界、圆弧边界和椭圆形边界的MEMS换能元，并能进行数据及计算结果的打开、保存、输出、显示与打印。(The development purpose of the software is to express the boundary of the micro structure transducer element in a functional way, generate the ANSYS command flow of the micro structure transducer element electrothermal coupling simulation calculation, and obtain the current density, temperature distribution, temperature gradient, voltage distribution and other parameters of the micro structure transducer element. The technical feature of the software is that it integrates directly coupled thermal electric coupling simulation calculation method of micro structure transducer. It is suitable for MEMS transducer with V-shaped boundary, circular arc boundary and elliptical boundary, and can open, save, output, display and print data and calculation results.)

石崇老师编的PFC建立不规则边坡模型的代码(Code for establishing irregular slope model by PFC compiled by Shi Chong)

说明：  AB PLC以太网ControlLogixTCP，通过TCP/IP连接AB PLC。程序包包涵C#代码和VB代码(AB PLC Ethernet controllogixtcp, connect AB PLC through TCP / IP. The program includes C code and VB code)

说明：  对abaqus有限元程序进行二次开发的J积分运算(J-integral operation of ABAQUS finite element program)

1、目标速度引起的失真，时间膨胀因子10%、chirp中心频率偏移5%。 2、超高速运动对脉冲压缩的影响，多普勒频移补偿(Distortion caused by target speed, time dilation factor 10%, and chirp center frequency offset 5%. Effects of ultra high speed motion on pulse compression and Doppler frequency shift compensation)

说明：  冲床应用行业检修使用的PLC程序，包含了工艺上的完整过程，其他冲床的程序也都是类似的(The PLC program used in the maintenance of punch application industry includes the complete process of technology, and other punch programs are similar.)

在局部阴影条件下用RBF神经网络实现光伏最大功率点电压跟踪，结果表明能很地跟踪到最大功率点电压(Photovoltaic maximum power point voltage tracking using RBF neural network under partial shadow condition)

光学谐振腔计算，锁模调制，腔内功率密度计算，一阶导数求解(Calculation of optical resonator)