hysteresis

一个二维的FDTD程序 本程序实现2维TM波FDTD仿真 此程序用PML设置吸收边界条件 FDTD_2D_kongqi_PML 仅含有Ez,Hx,Hy分量 (A two-dimensional FDTD program program realization of the wave 2-D TM FDTD simulation this program set with the PML absorbing boundary condition FDTD_2D_kongqi_PML contain only Ez, Hx, Hy component)

说明：  布谷鸟搜索的算法,其中，cs_spt.m为主程序，fobj.m为目标函数(The algorithm of cuckoo search,in which CS _SPT is the main program and fobj is the objective function .)

说明：  高等应用数学问题matlab求解，包括例题的全部代码 很适用的 (Matlab solving the problem of Higher Mathematics, including examples of all the code is applicable)

处理相干斑的程序，可以借鉴和学习。经过本人编写(Speckle processing program, you can learn from. After I write)

说明：  摘要：简述信道编码理论，详细说明分组码的编译原理、实现方法及检错纠错能力，用MATLAB仿真有无信道编码条件下对通信系统性能的影响及信道编码在不同信道下对通信系统性能的影响，如AWGN信道和深衰落信道。 关键词：信道编码、分组码、MATLAB仿真、性能 (Abstract: This paper describes channel coding theory, the detailed block code compiler theory, implementation method, and error detection and correction capabilities, with the MATLAB simulation without channel coding conditions on the communication system performance and channel coding in the different channels of communication systems properties, such as deep fading channel and AWGN channel. Keywords: channel coding, block codes, MATLAB simulation, performance)

针对基本无线传感器网络DV-Hop定位算法中，计算平均跳距时产生偏小误差的原因，提出了基于平均跳距修正的DV-Hop算法。改进算法中，引入信标节点个数比例、所有信标节点平均跳距的最大值以及所有信标节点平均跳距的平均值三个因子，并采用它们对平均跳距进行修正。通过Matlab软件对算法进行仿真验证，结果表明，改进后的 DV-Hop 算法有效降低了未知节点的定位误差，是一种可行的无线传感器网络节点定位解决方案。(DV-Hop localization algorithm for wireless sensor networks, we calculate the average hop distance small error of reasons, raised the DV-Hop algorithm based on the average hop distance correction. Improved algorithm, the proportion of the number of nodes, the introduction of beacons, the beacon node average maximum jump distance as well as all the beacon nodes average jump from the average of three factors, and their average hop distance correction. Matlab software simulation results show that the improved DV-Hop algorithm effectively reduce the unknown node positioning error, the solution is a viable wireless sensor network node positioning algorithm.)

合成孔径雷达sar探测距离相对于孔径功率的MATLAB仿真程序，最后结果以图表形式给出(Synthetic aperture radar sar detection distance with respect to the aperture power MATLAB simulation program, the final result is given in the form of a chart)

快速定位和构图的源码，一个简单的例子，3D建模，可以用作学习智能机器人自主移动的例子(Rapid positioning and the composition of the source code, a simple example, 3D modeling, can be used to study the intelligent autonomous mobile robot example)

利用matlab进行图像处理后，水印提取(matlab)

MATLAB简单的计算白色轮廓中的像素点的个数(MATLAB a simple white outline of the calculation of the number of pixels)