QDemo

使用四分量高斯包络信号进行时频分析，比较比较STFT、WVD、CWD分辨率和交叉干扰情况，包含仿真代码及Matlab时频分析工具箱。工具箱的使用建议参考《Matlab时频分析技术及其应用-葛哲学》，压缩包中顺便包含了该书的源代码。(The four-component Gaussian envelope signal frequency analysis, comparison compare STFT on WVD, CWD resolution and cross-interference, frequency analysis toolbox contains the simulation code and Matlab. Use the recommended reference toolbox " Matlab frequency analysis technology and its application- Gezhe school" book contains the source code compression package the way.)

加州伯克利大学教授的经典著作《动态面控制》，(Dynamic Surface Control of Uncertain Nonlinear Systems )

说明：  LDPC码编解码程序，LDPC，Matlab，VMSK(LDPC encoding and decoding procedures)

增量式PID控制算法Matlab仿真程序 设一被控对象G（s）=50/(0.125s^2+7s),用增量式PID控制算法编写仿真程序（输入分别为单位阶跃、正弦信号，采样时间为1ms，控制器输出限幅：[-5,5],仿真曲线包括系统输出及误差曲线，并加上注释、图例）。(Incremental PID control algorithm Matlab simulation program to set up a controlled object G (s) = 50/(0.125s ^ 2+7s), with incremental PID control algorithm simulation program written (unit step input, respectively, sinusoidal signal sampling time is 1ms, the controller output limiter: [-5,5], including simulation system output and error curve curves, plus notes, legend).)

this is a program on matlab backpropagation of error.

ac motor drive chip control

采用PQ分解的潮流计算 ，附加5个节点的验证(Flow distribution PQ)

解决二个变量 之间的非线性关系，包括MATLAB中自带的五种copula函数。(Solve the non-linear relationship between two variables, including five Copula Functions in MATLAB.)

采用matlab的simulink模块实现了基于矢量控制的永磁同步电动机控制系统，电机模型为matlab自带模型，SVPWM的实现则采用了模块搭建，仿真模型运行时间快，效率高，便于学习研究(Using the matlab simulink module implements the permanent magnet synchronous motor control system based on vector control, motor model for matlab own model, SVPWM implementation of the module is used to build simulation models running time, high efficiency, easy to learn study)

single input single output toolbox