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改进的pso算法（3个m文件和一个说明文件）： 本算法实现Clerc and Kennedy 2002年对pso算法的重要改进(The improved PSO algorithm (3 M files and a description of the file): An important improvement of Clerc and Kennedy in 2002 on the PSO algorithm this algorithm)

不规则图形边界的pde工具箱求解微分方程。(irregular shapes pde toolbox for solving differential equations boundary.)

本文基于毕肖普法和蒙特卡洛法,利用MATLAB编程软件计算了边坡结构的失效概率Pf和对应可靠指标β.在计算上述Pf和对应β时,考虑了土体三个主要基本参数(重度γ、内摩擦角(Ψ)、粘聚力c)的随机特性.利用MATLAB程序的计算结果表明,随机变量对边坡可靠度的影响与基本随机参数对抗滑反力的贡献大小有关,即,贡献大的基本随机参数,它的随机波动对结构失效概率Pf的影响也较大,反之亦然.另外,基于MATLAB的算例计算结果还表明:边坡结构失效概率Pf对内摩擦角(Ψ)较敏感,而对重度y和粘聚力c次之.其次,当同时考虑三个随机变量的联合波动对Pf的影响时发现,当它们在小范围内随机波动时,其联合特性对Pf的影响较敏感,但当它们在大范围内随机波动时,Pf主要受敏感随机变量的影响,而三个随机变量联合作用对Pf的影响和敏感随机变量(Ψ)单独作用时相差不大.由此可见,在实际边坡工程可靠性分析中,土体内摩擦角起主要作用,不容忽视.(Based Bishop method and Monte Carlo method, using MATLAB programming software to calculate the failure probability Pf and the corresponding slope reliability index β structure in the calculation of the above Pf and the corresponding β, consider the three main basic soil parameters (severe γ internal friction angle (Ψ), cohesion c) of the random nature of calculation results using MATLAB program shows that the influence of random variables on the reliability of the basic random slope parameters against anti- slip contribution to the size of the force , that is , the contribution the basic parameters of large random , random fluctuations which affect the probability of structural failure Pf is also larger , and vice versa addition, the calculation based on MATLAB numerical results also show that : the structure of slope failure probability Pf internal friction angle (Ψ) more sensitive , while severe and cohesion c y followed . Secondly, when taking into account the impact of the joint fl)

script code svpwm modulation

在modolsim平台下仿真完成了一个双端口RAM的实现，希望有用。(Simulation platform in modolsim completed a dual-port RAM realize the hope that useful.)

介绍matlab2008a_2的教程及源程序(Tutorials and source code introduced matlab2008a_2)

说明：  the example matlab code

vi du cho thuc hanh matlab

直接序列扩频通信系统误码率分析,主要过程为基带信号生成，扩频，解扩，误码率分析(Direct sequence spread spectrum communication system BER analysis, the main process for the baseband signal generation, spreading, despreading, BER analysis)

这是一些关于混沌的源代码，并且是通过本人在计算机上验证并可以实现的，如Rossler系统的绘图，一些混沌程序的仿真等等(This is some source code on the chaotic, and through my computer and can verify, such as the Rossler system drawings, some chaotic process simulation, etc.)