dingdian

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.)

NR法潮流计算程序，内附详细说明，希望对大家有帮助(NR power flow matlab program, hope it could help)

matlab文件中的各个用于通信系统信道均衡和估计的函数(matlab file used for communication systems in various channel equalization and estimation of the function)

说明：  fsk在matlab的simmulink上面的仿真(fsk matlab' s simmulink in the above simulation)

C++基于栈实现行编辑程序，输入#表示退格，输入@表示退行，CTRL+Z表示结束。(C++ stack implementation based on-line editing program, enter the# represents the backspace, enter @ represent regression, CTRL+Z indicates the end.)

本文件是是我们组参加2013全国大学生数学建模的比赛论文，荣获全国2等奖，不信可以百度下，包括所有论文程序的附件，完整版，程序包括matlab的程序，有神经网络的程序，基于小波分析的程序，也有基于vissim交通流的仿真程序包！相当给力！程序阅读和说明都在上面！(This document is our group to participate in the 2013 national college tournament mathematical modeling papers, won the two prize, do not believe you can Baidu, the program includes all papers attachments, full version, matlab procedures, including procedures, a neural network program, Based on wavelet analysis procedures, there are also based vissim traffic flow simulation program package! Quite a force! Read the instructions and procedures are in it!)

二维FDTD仿真实例，带PML边界，既有TMz又有TEz(The simulation of two-dimensional FDTD, PML boundary with both TMz and TEz)

说明：  定义了一种调制信号，使用时可以直接调用该信号(mpsk)

有关乘积误差模型的估计 检验 最大似然估计值的获取 (MEM model estimation and test)

ecent advances in electrical engineering and computer science, esp ecially in micro- electro-mechanical systems (MEMS), very-large-scale integration (VLSI) and op erating system theory, have made wireless sensor network (WSN) technologies an imp ortant and promising research area. As the circuitry b ecame smaller and cheap er, the idea of co op eratively sensing physical or environmental conditions, such as magnetic eld intensity, temp erature, light intensity, sound, vibration, pressure, motion or p ollutants with the help of a network of sensor no des has b ecome feasible.