frmActive

Vb屏幕截图程序，与抓屏、抓图类似的程序，运行后隐藏在Windows的托盘处，通过托盘图标可显示主窗体或选择执行的操作选项。本截图工具可以设定鼠标拖动区域来截图、或者指定区域截图。本程序来自国外网站，窗体语言为英文，英文好的可翻译成中文显示。

matlab经验模态分解法EMD代码，需要可以下载(Matlab empirical mode decomposition method EMD code)

说明：  基于Matlab R-2018a版本搭建的虚拟同步发电机(VSG)三相离网变负载逆变器仿真，功率外环采用VSG控制，内环采用电容电压和电感电流双PI控制，仿真输出三相电压波形良好，输出频率跟踪也很理想。更详细的模块搭建步骤讲解可参考2018年华北电力大 学Sara Yahia Altahir Mohamed的博士学位论文《微电网并联运行虚拟同步发电机控制策略研究》P18页，Fig.2-8 Overall control of VSG.(Based on MATLAB r-2018a version of virtual synchronous generator (VSG) three-phase off grid variable load inverter simulation, the power outer loop adopts VSG control, the inner loop adopts double PI control of capacitor voltage and inductance current. The simulation output three-phase voltage waveform is good, and the output frequency tracking is also reasonable. For more detailed explanation of module construction steps, please refer to Sara Yahia altahir Mohamed's doctoral dissertation "Research on control strategy of virtual synchronous generator in parallel operation of microgrid" in 2018, page P18, fig.2-8 overall control of VSG.)

实现的匹配滤波器，能够对数据进行匹配滤波(Matched filter implementation, the data can be matched filter)

找到 MySQLWorkbench的安装目录下的 datamain_menu.xml 这个文件并改名，再将此文件中的main_menu.xml复制进去，可完成部分汉化。(Find the file datamain_menu.xml in the installation directory of MySQL Workbench and rename it, then copy the main_menu.xml in the file.)

说明：  分数时延FIR滤波器的MATLAB实现，归一化频率和幅度变化，来观察分数时延FIR滤波器的特性(Matlab implementation of fractional delay FIR filter)

主要介绍USB软件狗的加密算法原理以及ET299软件狗的编程加密-Mainly introduces the USB software dog encryption algorithm principle and the dog" s programming encryption software, ET299

异步电动机扩展卡尔曼滤波无速度传感器MATLAB仿真模型(Speed sensorless MATLAB simulation model of asynchronous motor extended Calman filter)

关于电力系统无功优化的学术论文，改论文使用了连续二次规划的方法。-On Power System Reactive Power Optimization of theses, papers to the use of a continuous quadratic programming method.

说明：  布谷鸟搜索算法，作者源代码，提供学习借鉴(Cuckoo search algorithm, author source code, provide learning for reference)