sxdl

简要讲述用matlab解偏微分方程的基本步骤，有利于数学专业学生及要用到这项基本知识的编程人员(Briefly about the solution of partial differential equations with matlab basic steps to help students and to use mathematics to the basic knowledge of programming staff)

最新比较流行的模态识别方法，最小二乘复指数法(LeastSquareComplexExponential(LSCE) for modal analysis)

用于ABAQUS二次开发，考虑温度和应变速率的热动力学程序。是用于隐式算法的umat文件(a Fortran code for thermoviscoplastic algorithm. implicit algorithm for abaqus umat)

根据输入的电路矩阵表示形式，形成节点导纳矩阵，形成因子表的过程可以看做是规格化运算和消去运算的重复过程，重复的次数和非基准点的节点个数相同。 每个过程中进行的操作都相同，首先，存储规格化因子及消去因子；其次，对本行进行规格化运算，并将其值存储在因子表中；然后，对其后的每行进行消去运算；如此循环n次得到因子表。(Representation of the input of the circuit matrix, forming a node admittance matrix formation process can be seen as a factor table normalization process operations and eliminate duplicate operations, the same number of nodes and the number of repetitions of non-reference point. Each operation carried out during the same, first of all, storage and elimination factor normalization factor secondly, the Bank normalized operations, and its value is stored in the factor table then, each row will be erased after their operation so the cycle n times to get factor table.)

说明：  模糊算子5种方法，应该有点用吧。能求出综合评价(There are 5 ways of using fuzzy operators. We can figure out the comprehensive evaluation)

stbc alamouti code with all modulation scheme

说明：  这是一个混合的粒子群算法编程实现，希望对大家有帮助(hybrid PSO code in matlab)

多种方法来估计无线电带宽的MATLAB原码(The estimation of wireless signals)

对已经调制的信号进行相干解调，然后观察频域特性(The modulated signal for coherent demodulation, and then observe the frequency domain characteristics)

为了有效提取面邵表情特征，提出了一种新的基于LBP(局邵二值模式)特征的人脸表情识别特征提取方法首先用均值方差法对表情图像进行灰度规一化，通过对图像进行积分投影，定位出眉毛、眼睛、鼻和嘴巴这些关键特征点，进而划分出各特征邵件所在子区域，然后对子区域进行分块，提取各个子区域的分块LBP直方图特征(Abstract: In order to effectively extract facial expression feature,a novel facial feature extraction approach for facial expression recognition based on Local Binary Pattern(LBP) is proposed in the paper )