matlab

Solution of Laplace equation in an semi-circle region by FEM method

matlab simulink implementation and analysis of Three-phase inverter3

MATLAB模型，双馈风电机组基于最大功率跟踪，低风速超速控制，中风速高风速变桨距控制(DFIG MATLABThe wind turbine and the doubly-fed induction generator (WTDFIG) are shown in the figure called The Wind Turbine and the Doubly-Fed Induction Generator System. The AC/DC/AC converter is divided into two components: the rotor-side converter (Crotor) and the grid-side converter (Cgrid). Crotor and Cgrid are Voltage-Sourced Converters that use forced-commutated power electronic devices (IGBTs) to synthesize an AC voltage from a DC voltage source. A capacitor connected on the DC side acts as the DC voltage source. A coupling inductor L is used to connect Cgrid to the grid. The three-phase rotor winding is connected to Crotor by slip rings and brushes and the three-phase stator winding is directly connected to the grid. The power captured by the wind turbine is converted into electrical power by the induction generator and it is transmitted to the grid by the stator and the rotor windings.)

图像频域滤波，用matlab实现了在图像频域中通过Butterworth陷波器消除周期性噪声干扰信号。(Image frequency domain filtering using matlab achieved in the frequency domain image by Butterworth notch filter to eliminate periodic noise signal.)

说明：  matlab编写的计算机模拟程序 很方便使用 注释很清楚(matlab produear)

Some elementary important source files

短波信道建模中几篇具有里程碑意义的论文英文原文。(HF channel modeling in several landmark papers in English text.)

The PID controller is the most widely used controller in industrial systems. However, appropriately tuning a PID controller is not an easy task although it has only three parameters at most. This submission provides a tool for beginners to learn PID tuning.

Matlab初学者的最佳参考，包含了Matlab仿真的基本过程。(Matlab for beginners the best reference, contains the basic process of Matlab simulation.)

说明：  应用于语音信号和油气管道泄漏信号的去噪处理，有良好的去噪效果(It is applied to the denoising of voice signal and oil and gas pipeline leakage signal, and has good denoising effect)