abc.m

用matlab编写的基于DHMM的语音识别的程序(prepared using Matlab-based DHMM voice recognition procedures)

Signal And System Lab_2

寻找一个数的黑洞数，也就是Kaprekar数。(Looking for black number, which is Kaprekar numbers.)

说明：  This function solves the mixed integer linear programming problems. It uses the linprog.m function that comes with the optimization toolbox of MATLAB. It employs the branch and bound algorithm. It uses depth first search.

说明：  动态规划混合动力汽车模式切换程序，附带工况。(Dynamic programming of hybrid electric vehicle mode switching program, with working conditions.)

提出了一种求解电磁场有限元 边界元混合法所生成的线性方程组的有效方法 ———内观 法结合多波前法.由于该线性方程组的系数是一个部分稀疏部分满填充的矩阵,为了加速求解,应用内观法将系数矩阵分为 2块,一块是有限元法形成的稀疏矩阵,另一块是边界元法生成的满阵,然后用多波前法求解稀疏矩阵方程,用高斯 约当消去法解满阵方程. 采用该方法,计算了二维多层介质柱体的雷达散射截面.计算结果表明,该方法的计算效率远远高于传统的高斯法.(Proposed for solving mixed finite element boundary element linear equations generated by an effective method of Vipassana--- a combination of multi wave front method. Since the coefficients of linear equations is a part of the sparsely populated part of the full matrix, in order to speed up the solution, application of Vipassana coefficient matrix is ​ ​ divided into two, one is the finite element method for the formation of the sparse matrix, the other is the boundary element method generates the full array, and then use the multifrontal method for solving sparse matrix equation Gauss Jordan elimination method with full matrix equation solution. use this method to calculate the two-dimensional multi-layer dielectric cylinder of the radar cross section. The results show the computational efficiency of this method is much higher than the traditional Gaussian law.)

压缩文件里有TCL语言教程，可为初学opensees软件的学者提供资料。 另外有四个文档分别为matlab实例教程、有限元源程序(Compressed file with TCL language tutorials, can provide information for beginners opensees software of scholars. In addition, there are four documents respectively for instance tutorial matlab source, the finite element program)

SPWM调制，三相逆变电源建模，能很好的输出三相正弦电压，(SPWM modulation, three-phase inverter power modeling, can be a good three-phase sinusoidal output voltage,)

QAM,PSK,DPSK,FSK,MSK调制仿真，包括眼图输出，误码率输出，星座图，频谱，及实际wav文件的调制解调(QAM, PSK, DPSK, FSK, MSK modulation simulation, including eye diagram output, the output BER, constellation, spectrum, and actual modem wav files)

异步电机转子磁场定向控制仿真模型，通过验证，好用!(FOC induction motor simulation models, easy to use!)