MATLAB非线性动力学控制问题

短时傅里叶变换可以用差分模式来实现，对书上的运算式做了稍许的改变。改变-计算差分序列的第一列数据时用的是第一列的元素减去当前行的最后一列元素。原算法中采用的是第一列元素减去下一行第二列元素。原算法加窗之后结果比较好，不加窗时结果误差很大，而改变之后的算法不加窗效果依然很好。(Short time Fourier transform can be used to achieve the differential mode of expression on the book made a slight change. Change- calculating the difference sequence of the data with the first column is the first column of the matrix by subtracting the current element in the last column of row. Is used in the original algorithm subtracts the elements of the first column of the next row and the second column elements. After the results of the original algorithm windowed better, when the results window without great error, and after changing algorithms no window effect is still very good.)

PMSG网侧的结构包括逆变器、PWM发生器、电压矢量控制。采用电压外环和电流内环的双闭环控制。设计电流控制器时，希望稳态电流无静差，而且动态要求上，永磁直驱风力发电系统中不允许在电流调节过程中有太大的电流超调.(PMSG network side structure includes an inverter, PWM generators, voltage vector control. Using a voltage outer and inner current double closed loop control. Design current controller, hope no static error steady-state current, and the dynamic requirements, permanent magnet direct drive wind power system does not allow much of the current overshoot in the current regulation process.)

QPSK modulation test

Affine spatial interest points detection using scale space analysis

Using Data Acquisition Toolbox to process data from hardware

针对现场工业数据，实现状态空间模型的递推最小二乘算法的辨识(For on-site industrial data to achieve state-space model identification recursive least squares algorithm)

说明：  九电平模块化多电平变换器（MMC）的matlab仿真simulink(Matlab simulation of nine level modular multilevel converter (MMC))

matlab编程必备手册，内容包括matlab编程格式规范、基本编程方法、常用函数及实例等。言简意赅，非常实用。(matlab manual programming required, including matlab programming format specification, the basic programming methods, and examples of commonly used functions and so on. Concise and very practical.)

说明：  自己在MATLAB GUIDE下编写的数字均衡器。能播放WAV格式音频文件并进行8段均衡器调节，显示原波形、频谱和调节后的波形、频谱。压缩文件中还包含了3个可以参考的类似程序报告。(An EQ designed in MATLAB GUIDE. It can play WAV file and do the EQ, show the frequency spectrum and wave shape of original and filtered file.)

对于灰色预测、时间序列预测、自回归模型的集中预测模型的MATLAB代码(For gray prediction, time series prediction, autoregressive model, the MATLAB code of the centralized prediction model.)