lec4

在有限元计算中作图形绘制，有限元编程的朋友比较有用(In finite element calculations for graphics rendering, finite element programming Friend more useful)

PTOTEUS中所有元件中英文对照表，有需要的朋友可以下载使用(PTOTEUS all the components in bilingual form)

matlab程序很详细,主要是kalman滤波部分程序，轨迹估计，以及误差估计等最小线性误差估计(matlab program in great detail, the main part of the program is the kalman filter, trajectory estimation, and error estimation of the minimum linear error estimation)

针对实际工业生产中常见的多输入多输出时滞过程, 构造多变量Smith预估控制结构, 提出基于对象模 型伴随矩阵的解耦器设计方法. 通过对解耦后对象的幅频和相频特性分析, 获得对象的简化一阶数学模型. 根 据Smith预估控制结构闭环特征方程的特点, 利用Butterworth滤波器极点配置的原理, 对解耦后的多变量时滞过程 设计PI控制器. 结合实际过程中常见的不确定性, 分析了控制系统保证鲁棒稳定性的充要条件. 最后以实例验证了 本文所提方法的优越性.(The decoupling Smith control method is presented for multi-input-multi-output system with time-delays which are often encountered in practical engineering. A new method for designing the decoupler based on the adjoint matrix of the multivariable system model with time-delays is proposed. By analyzing the amplitude-frequency and phasefrequency characteristics of the decoupled model, the decoupled model is reduced to a first-order model with time-delay. According to the closed-loop characteristic equation of Smith predictor structure, a PI controller is developed by using the principle of pole assignment for Butterworth filter. Sufficient and necessary conditions for robust stability are derived for adaptive and multiplicative uncertainties commonly occurred in practice. Simulation results show the superiority of the proposed method.)

This is a bandsolver source code programmed with Matlab. Bandsolver is one of the most usefuel solving method in FEM analysis.

说明：  杨大成的移动传播环境，包含大尺度衰落信道，小尺度衰落信道的详细表述。还有一些建模方法。(Yang Dacheng mobile communication environment, including large-scale fading, small-scale fading detailed presentation. Some modeling.)

Alamouti scheme communication

适用于turbo码的rsc编码器matlab实现(a rsc encoder for turbo)

Convex Optimization(Log_Barrier_Gradient approach)

基于SVPWM的电流型PWM整流器设计及其仿真，实现结果，波形正确(Based on SVPWM Current PWM Rectifier design and simulation to achieve a result, the waveform correctly)