CD_Programs2

此文件是求《矩阵特征值问题条件数的估计》的一个matlab文件(This file is to strive for " the condition number of matrix eigenvalue problem of the estimate" a matlab file)

VMD.分解程序-将序列分解为多个子序列，用于风速风功率等新能源预测(VMD. Decomposition Procedure - Used for Predictive Use.)

介绍了平均电流控制型 PFC Boost 变换器的结构， 分析了其工作原理。 分别采用 Power System 工具箱和考虑电感电流断续工作状态的 C-MEX 文件 S 函数建立了主电路模型，对平均电 流控制型 PFC Boost 变换器进行了仿真。仿真结果表明，与 Power System 工具箱模型相比，基于 C-MEX 文件的 S 函数仿真模型能够准确仿真电流断续工作状态，仿真速度快。设计了电路样机进 行了实验研究，仿真结果与实验结果一致，证明了该方法的正确性。利用该方法可以高效地仿真 研究系统结构和参数变化时性能变化情况，得到的平均电流控制型 PFC Boost 变换器的混沌分岔 图，为更好地理解和设计这种变换器提供了有利的工具。(The structure of average current controlled power factor correction (PFC) Boost converter is introduced, and its working principle is analyzed. The PFC Boost converter is simulated using the model established with Power System toolbox and the C-MEX file S-function model respectively. Simulation results show that the C-MEX file S-function model can simulate the all state of the converter including discontinuous conduction mode with high speed. Experimental results show the correctness of the simulation results and the proposed method. The method is suitable for simulation the performance changing with the variation of system structure or parameters. The bifurcation diagram is derived for PFC Boost converter using this method, which is very useful for better understanding and better design of the converter.)

非线性规划算法,基于拉格朗日乘子Hessian矩阵的sqp方法(nonlinear programming algorithm，sqp algorithm based on Lagrange Hessian Matrix)

Sobel算子实现图像区域生长的图像分割，该程序经本人验证可行，欢迎下载(Sobel operator to achieve the image region growing image segmentation, the program after I verified feasible, welcome to download)

基于MATLAB/SIMULINK的零电压移相半桥控制，DC/DC变换器。 已经过修改调试，效果良好。 可直接用于借鉴学习。 模型基于matlab R2016b.(Zero voltage phase shifted half bridge control based on MATLAB/SIMULINK, DC/DC converter. It has been modified and debugged, and the result is good. Can be directly used for reference learning. The model is based on MATLAB R2016b.)

Proportional-Integral-Derivative (PID) control is the most common control algorithm used in industry and has been universally accepted in industrial control. The popularity of PID controllers can be attributed partly to their robust performance in a wide range of operating conditions and partly to their functional simplicity, which allows engineers to operate them in a simple, straightforward manner (exp. ref:national instruments). This file analyse different conditions and methods for tuning the PID controllers.

一元多项式的计算 有输入多项式项 有加法项 有减法项 有乘法项等(Unary polynomial calculation)

说明：  VC++和matlab编写的时频工具箱，可以将C++源程序转换为matlab格式。本站有个这个源程序，但没有C++部分。这个版本最全。(VC++ and write the time-frequency toolbox matlab, C++ source code can be converted to matlab format. This site has a source, but no C++ parts. This version is the most complete.)

Hilbert缝隙天线的频率可重构设计 (Hilbert slot antenna frequency reconfigurable design)