attachments_2013_04_28-kahina

Voltage source inverter (VSI) with six-step mode and its induction motor (IM) drive simulation in MATLAB/Simulink environment

电路的求解，包含各种受控源，无伴电压源以及互感情况的电路求解(Circuit solving, contains a variety of controlled source the unaccompanied voltage source, and mutual inductance case circuit solving)

读入COMSOL软件所生成的三维mphtxt四面体网格文件，读入相关网格的节点、四面体单元，边界信息。调用此函数时应将包含相关的路径与文件名的字符串作为输入参数。包中包含了一个m函数文件与一个示例网格数据文件。(read the information of 3-d tetrahedron mesh file--*.mphtxt generated by COMSOL. The input parameter is the path and name of mesh file. A matlab source file and mesh file is included in it.)

binary phase shift keying modulation

matlab中计算数值积分的函数quad的源代码，包括计算原函数没有初等函数表达式的函数积分(matlab function to calculate the numerical integration of the quad' s source code, including the calculation of the original function is not a function of integral primary function expression)

包含了滞环控制的.m文件和.mdl文件，所建模型是单相PWM(.m File contains the .mdl file and hysteresis control, the model is a single-phase PWM)

程序实现了仿真信号的混合，并对混合信号进行分离，得到相互独立的信号，分离效果明显。(Program achieved a mixed signal simulation, and mixed-signal separation, be mutually independent signal separation effect is obvious.)

说明：  MATLAB7辅助控制系统设计与仿真 第6章(MATLAB7 Auxiliary Control System Design and Simulation of Chapter 6)

参数为：载波频率f0为20MHz，采样频率为4倍f0，脉宽为1us ，脉冲周期为20us 。其中：(Parameters: carrier frequency f0 is 20MHz, the sampling frequency is 4 times f0, a pulse width of 1us, the pulse period is 20us. Of which:)

WalshHadmard code for CDMA system..