drtoolbox

LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) (LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.)

此程序根据王专利撰写的《翼面结构有限元模型节点气动载荷计算》编写 需要的前期准备文件：case01.txt---已知不同工况下各个载荷点力的文件 Force_Site.txt---已知各个载荷点的坐标 Node_Site.txt----有限元节点坐标 输出文件 Nodal_Force_01.txt----存放每个有限元节点计算后分得的力，第一列为节点编号，第二列为节点力大小(This process patent under the king wrote " wing structural finite element model node aerodynamic load calculation" Writing required preparatory documents: case01.txt-- known under different conditions of each load point force file Force_Site. txt--- known each load point coordinates Node_Site.txt---- finite element nodal coordinates output file Nodal_Force_01.txt---- storage node finite element calculation for each share of power, first as the node number, the second column is the size of nodal forces)

matlab关于fcm图像聚类 分成8类(about the method of fcm)

利用matlab对无线通信信道仿真，大尺度衰落问题(Using matlab wireless communication channel simulation, large-scale fading problem)

图像线性运动退化程序，其中10表示10个像素，45表示偏转45度。 以及函数的一些用法(Linear motion degradation image applications, including 10 said 10 pixels, 45, said rotated 45 degrees. Some fspecial usages and functions)

Its valentine week..pass this to engineer girlfriend..nd she will more happy by looking into this cute valentine heart made in matlab..

Economic dispatch matlab

学习线性分类器，可以自动识别两类数据点，数据点可以有交叉域，或者没有，共使用了三种方法。(Learning the self-learning process of linear classifier, and then design a linear two-class classifier and do some research based on the feature of linear classifier.)

说明：  使用matlab实现最大类间方差法，即OTSU(The use of matlab for maximum between-class variance, that is, OTSU)

通过.m文件来实现SVPWM，引用于光伏并网中(. M files SVPWM, referenced in the photovoltaic grid)