DistgshAnalysis.m

说明：  反正切函数的变步长算法,能实现反正切函数的变步长的仿真！(Arc tangent function, variable step-size algorithm)

说明：  软无线电matlab模拟源程序，这个资料包含matlab实现对信源抽样，编码，调制，解调，载波同步，利用自适应信号处理的手段，实现通信技术的各种功能。(Matlab simulation of soft radio source, this data source contains the matlab implementation of sampling, coding, modulation, demodulation, carrier synchronization, adaptive signal processing means to achieve the various functions of communication technology.)

分形维数的计算 ，分形理论逐渐实用，该程序会对大家有帮助的 (Calculation of the fractal dimension, fractal theory gradually utility, the program to be of help)

目前，互联网上HHT信号处理技术有 三种实现方式，采用MATLAB编程语言，一种是法国研究者设计的G Rilling 2007 另一种是MATLAB文件交换中心由Alan Tan开发的plot_hht程序包，第三种是台湾中央大学数据研究中心提供的EEMD包。 其中，我使用了plot_hht程序包，其使用了三个终止条件，驻留分量的单调性，极值点与零点的个数相差不超过1，还有黄锷1998经典文献提出的 SD>0.1，单调性的判断，并不是去判定驻留分量是否是单调函数，而是当曲线是双曲线时，循环结束，由于没有考虑端点效应，程序比较简洁，好读懂，大家 学习HHT可以从这个程序包入手，在此抛砖引玉，希冀有人能比较这三种不同的算法的性能和时间复杂度，以及对各种信号的适应性。 (There provides three types of HTT program packages: one developed by France researcher G. Rilling 2007, the other provided by by Alan Tan from Matlab file exchange center and the third one by Taiwan Central University Data Research Center. Please start from the simple one by Tan to learn more.)

说明：  matlab学习资料：MATLAB命令大全；MatLab工程数学应用；MATLAB应用程序接口用户指南等内容(matlab material)

ofdm fu hao fangzhen (ofdm fangzhen)

一种基于mds-map无线定位算法的仿真源代码，有助于进一步理解该算法(Mds-map based localization algorithm in wireless simulation source code, help to further understanding of the algorithm)

说明：  QR分解的MATLAB程序，可用于MIMO智能天线等(QR decomposition)

matlab使用教程，是《21 世纪全国应用型本科电子通信系列实用规划教材》。包含：第1 章 MATLAB简介；第2章 MATLAB语言基；第3章 MATLAB数值运算；第4章 结构数组与细胞数组；第5章 MATLAB 符号运算；第6章 MATLAB 程序设计；第7章 MATLAB 数据可视化；第8章 交互式仿真集成环境 SIMULINK；附录 MATLAB 上机实验(Using matlab tutorial is " 21st Century electronic communications nationwide series of application-oriented practical planning materials." Contains: Chapter 1 Introduction MATLAB Chapter 2 MATLAB language group Chapter 3 MATLAB numerical computation Chapter 4 array of structures and cell arrays Chapter 5 MATLAB symbolic computation Chapter 6 MATLAB programming Chapter 7 MATLAB data visualization Chapter 8 interactive simulation integrated environment SIMULINK Appendix MATLAB on experiments)

关于自适应反步控制的双螺旋桨自动靠泊文献，最新的(The auto-berthing of a ship requires excellent control for safe accomplishment. Crabbing, which is the pure sway motion of a ship without surge velocity, can be used for this purpose. Crabbing is induced by a peculiar operation procedure known as the push-pull mode. When a ship is in the push-pull mode, an interacting force is induced by complex turbulent flow around the ship generated by the propellers and side thrusters. In this paper, three degrees of freedom equations of the motions of crabbing are derived. The equations are used to apply the adaptive backstepping control method to the auto-berthing controller of a cruise ship. The controller is capable of handling the system nonlinearity and uncertainty of the berthing process. A control allocation algorithm for a ship equipped with two propellers and two side thrusters is also developed, the performance of which is validated by simulation of auto-berthing)