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东北大学关于通信信号处理的matlab课件，适合初学者理解学习(Northeastern University, on the communication signal processing matlab courseware, suitable for beginners to learn to understand)

系统地阐述了低密度校验码基于图模型的编译码思想，介绍了密度进化理论，对影响低密度校验码纠错性能的两个主要因素——度序列设计和围长设计进行了深入分析，详细介绍并设计了LDPC的编解码(Systematic exposition of the LDPC graph model based codecs idea, introduces the density evolution theory, the two main factors that affect the performance of LDPC error correction- the degree of sequence design and girth design depth analysis, detailed and designed LDPC codec)

matlab code for Image overlay

一个GPU的FDTD程序，可以参考一下。(A GPU FDTD procedures, you can refer to.)

说明：  模拟潮流计算中支路断开导致潮流越限的情况 切负荷处理(about power flow and load shed)

用matlab编写的RBF神经网络用于分类与回归的程序(Prepared using matlab RBF neural network for classification and regression procedures)

retrieve data from fig and export to excel

放大显示matlab输出图像局部区域，放大区域可以随意在原图像拖动，相应的放大区域会显示出来，同时显示放大区域和源图像。(Magnified display matlab output image local area, zoom in the region can be free to drag the original image, the corresponding amplification area will be displayed, while displaying the enlarged area and source image.)

三种求矩阵特征值的matlab实现：乘幂法、QR算法、yaccbi法求特征值(Eigenvalues of the three Matrix matlab implementation: power method, QR algorithm, yaccbi Eigenvalue Method)

test1.m 固定增量法求分界面 test2.m 利用误差平方和函数集群 delet.m 删除数组元素 Err.m 计算误差平方和 Distance.m 欧拉距离计算 (test1.m fixed incremental method for use interface test2.m squared error function cluster de let.m delete array elements Err.m calculation error square Distance.m Euler distance)