ARIMA预测

滑模变结构 刘金坤 ，很好用，很实用，特别是机器人控制方向。(sliding mode control liujinkun)

说明：  直流配网模型，非常基础的直流配网模型，便于对直流配网的基本掌握和学习(DC distribution network model, very basic DC distribution network model, easy to grasp and learn the basic DC distribution network)

说明：  能够实现充电仿真,具有电压电流反馈，能够实时观测蓄电池soc等参数(It can realize charging simulation, has voltage and current feedback, and can observe battery SOC and other parameters in real time)

利用BP神经网络实现对民族，古筝，摇滚，流行四类音乐的有效分类。matlab实现，提供数据和详细代码，有解释！(The BP neural network is used to realize the effective classification of four kinds of music: nationality, zither, rock and roll, and popular music. Matlab implementation, provide data and detailed code, there are explanations!)

说明：  基于SAR-ADC的DAC模块的电容切换，所做的动态功耗仿真，比较了不同切换模式的功耗。(Capacitance switching of DAC module based on SAR-ADC is simulated and power consumption of different switching modes is compared.)

该模型是对50kW、380V、50Hz三相三电平逆变器的两个相同电路进行建模。IGBT逆变器采用SPWM技术，(8kHz载频)将直流电源从a +/-200Vdc源转换为220V AC, 50Hz。逆变器通过75kVA 220/380V变压器输入50kW电阻负载。变频器输出采用L-C滤波器滤除主要产生于8kHz开关频率倍数(Fh=n*8000 +/-k*50Hz)附近的谐波频率Fh。逆变器所需的12个逆变脉冲由PWM发生器块产生。该系统以恒定的调制指标在开环中工作。 电路1使用三电平桥块对逆变器进行建模。电路2使用独立的IGBTs和二极管块。用开/关延时块模拟死区，仅在电路1上应用。(It is easy for us)

说明：  本程序是完成网络的评价路径长度和聚类系数的计算。(This program is to calculate the average path length and clustering coeffient of a network.)

根据一设定运动轨迹进行模糊pid观测器设定，让后进行跟踪，实现有效跟踪。(According to a set motion trajectory, the fuzzy PID observer is set, and then the tracking is carried out to achieve effective tracking.)

基于滑膜速度控制器的PMSM矢量控制仿真模型(Vector Control Simulation Model of permanent Magnet synchronous Motor based on synovial Velocity Controller)

说明：  3.5 GHz 是 5G 网络部署的重要频段，本文结合射线跟踪模型，对 3.5 GHz 的无线传播特性进行了研究，并于 1.8 GHz 进行了对比，提出 5G 网络初期部署的建议(3.5GHz is an important frequency band for 5g network deployment. In this paper, the radio propagation characteristics of 3.5GHz are studied in combination with ray tracing model, and compared with 1.8GHz. Suggestions for initial deployment of 5g network are proposed)