神经网络估计船舶动态项，实现船舶曲线跟踪

说明：  一个发票打印程序，含VB源代码，可以打印发票，可自行修改发票样式。(An invoice printing program, including VB source code, can print invoices, can modify the invoice style.)

说明：  纯电动汽车能量制动回收MATLAB建模，适合新能源汽车的学生使用(Matlab modeling of energy brake recovery of pure electric vehicle, suitable for students of new energy vehicles)

通过AVR 单片机的硬件IIC对HMC5883进行读写(use avr mcu hardware iic to read write hmc58883)

基于OptiSystem上的DP-QPSK系统DSP算法(DP-QPSK system based on DSP algorithms OptiSystem)

《LabVIEW基础教程》，超星4.0格式，使用超星阅读器打开- LabVIEW basic tutorial , Chaoxing 4.0 format, use Chaoxing Reader to open

一个用Qt5写的数据管理Demo系统的源代码，仅供交流学习之用(A Qt5 written data management Demo system source code, for the purpose of communication learning.)

说明：  此为天津大学李霞林老师的博士论文，具体讲述了交直流微电网的稳定性分析。(This is a doctoral dissertation by Professor Li Xialin of Tianjin University. It specifically describes the stability analysis of AC and DC microgrid.)

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说明：  逆变器基于lcl滤波器并网逆变器matlab程序(Matlab program of grid-connected inverter based on LCL filter)

磁场、位场、延拓（向上延拓） 模拟磁偶极子目标源，并与延拓结果进行对比(Magnetic field extension)