ideal_channel_selection

说明：  下垂控制在逆变器型微电网控制中得到了广泛应用。当线路呈阻性时,有功功率和无功功率存在较强耦合,影响了下垂控制的性能。目前提出了两大类解决方法:一类方法通过控制参数的选取使逆变器的等效输出阻抗在基频段呈感性,但该方法的输出阻抗受制于控制参数并且存在较大缺陷;另一类方法用逆变器输出电流和虚拟阻抗计算电压降,从指令电压中减去该电压降,达到模拟实际阻抗的作用,效果更优,但对其机理缺乏阐述,且存在逆变器输出电压偏差问题。(Droop control is widely used in inverter based microgrid control. When the line is resistive, there is a strong coupling between active power and reactive power, which affects the performance of droop control. At present, two kinds of solutions are proposed: one is to make the equivalent output impedance of the inverter inductive in the fundamental frequency band by selecting the control parameters, but the output impedance of this method is subject to the control parameters and has great defects; the other is to calculate the voltage drop by using the output current and virtual impedance of the inverter and subtract the voltage drop from the command voltage to simulate the actual impedance, The effect is better, but its mechanism is lack of elaboration, and there is the problem of inverter output voltage deviation.)

说明：  该程序模拟了海浪的三维动态仿真，展示了随机海风作用下，波浪的运动。(The program simulates the three-dimensional dynamic simulation of ocean waves)

此程序主要功能是在风向固定，风速变化的情况下，求总风场输出的功率(The main function of this program is fixed in the wind, the wind speed changing circumstances, seeking total power output of wind farms)

ICA源代码,用于人耳识别.自己编写,非常容易理解(ICA source code for the human ear identification. I have written, very easy to understand)

生成服从gamma-gamma分布和对数正态分布的随机信号(generate gamma-gamma distributed signals)

根据透射反射曲线求解超材料介电常数 磁导率 阻抗 折射率(calculating the permittivity、permeability、impedance andrefraction indice of metamaterial based on transmission and reflectance coefficient.)

说明：  x射线的CT图像重建，内附data.mat为实际X射线拍到投影图像。(x-ray CT image reconstruction, the actual X-ray included data.mat photographed the projected image.)

ST电机控制程序源代码，采用svpwm控制方法。(ST motor control source code, using svpwm control methods.)

垂直切换功能，完成异构网络之间的切换，保证通信的无缝连接，提高用户体验值(Vertical handover function, complete the handover between heterogeneous networks, ensuring seamless connectivity of communication, improve the user experience value.)

经典的GPS接收机学习程序！友好的GUI界面，跟踪环路性能直观的显示！(GPS receiver classical learning process! Friendly GUI interface, the tracking loop performance visual display!)