project_qpsk_system

利用龙格库塔法解光波导激光器的重叠因子的传输方程，从而得到输出功率(Runge-Kutta method using optical waveguide laser solutions overlap factor of the transfer equation, thus the output power)

该程序模拟了降落伞的下降过程，其结果对于类似问题有借鉴作用。(The program simulates a parachute drop in the process, the results serve as a reference for similar problems.)

matlab编写的droop控制模型，可以实现分布式电源功能(matlab prepared droop control model, can achieve distributed power function)

matlab simulnik NAkagami仿真代码(matlab NAkagam simulnik)

有限元SpaceFrameElement的matlab程序(FEA matlab SpaceFrameElement)

Predictive direct power control (P-DPC) applied to voltage source pulse-width-modulation (PWM) rectifier was introduced in this paper. Based on the model of power prediction, voltage vectors were selected according to minimizing power errors in a fixed time interval, which results in a constant switching frequency control for P-DPC. It simplifies the implementation of P-DPC procedure by selecting switching states based on the principle of space vector modulation (SVM). In order to eliminate power errors caused by control delay, a detailed control delay compensation scheme was designed. Experimental results based on a 2kW prototype were presented, which showing that P-DPC has a faster power response compared to standard voltage-oriented-control (VOC) techniques. Besides, the dynamic performance of the system is also improved significantly by control delay compensation.

mqam demodultion code with fc,fs,fd,M and ini_phase parameter

matlab程序运行时导入数据文件作为输入参数，三相光伏逆变并网的仿真，BP神经网络的整个训练过程。( Import data files as input parameters matlab program is running, Three-phase photovoltaic inverter and network simulation, The entire training process BP neural network.)

说明：  对心电信号进行预处理，肌电、工频干扰、相位漂移滤除，为后续分析做准备(The ECG signal is preprocessed, and the EMG, power frequency interference and phase drift are filtered out to prepare for the subsequent analysis)

CODE是寫利用FUZZY的方式來做分群,也就是有歸屬度的程度分別 ,個人覺得比硬式分群結果來的較好,最後會畫圖來顯示結果.(CODE is written using FUZZY way to do grouping, which is a degree of attribution degrees, respectively, than the rigid grouping personally feel better the results will finally drawing to show the results,)