shipinfenxi

这是一本很少见的中文matlab帮助手册，特别对于点运算等入门级知识进行了详解，大家共享吧！(This is a very rare Chinese matlab help manual, particularly for entry-level point of computing, such as the detailed knowledge, share it!)

数值分析： lagrange插值与三次样条插值 simpson复化积分和两点高斯复化积分 四阶龙格—库塔解微分方程 牛顿下山法求解方程的根 列主元消去法求解线性方程组的根 (Numerical Analysis: lagrange interpolation and cubic spline interpolation simpson recovery of complex points and two points of the Gaussian integral Runge- Kutta Solutions of Newton descent method for solving differential equations root out the main element elimination method for solving linear equations root)

islanding detection paper

通过自动阈值选择方法实现图像二值化。初始阈值T是图像均值；T把图像直方图分成R1和R2两个区域；计算R1和R2均值u1和u2，选择u1和u2均值作新的阈值；重复以上步骤直到T值基本不变。(Automatic Threshold Selection；)

The code accompanying Understanding and Implementing the Finite Element Method by Mark S. Gockenbach (SIAM, 2006)(is contained in four directories: 1. version1: linear Lagrange triangles 2. version2: Lagrange triangles of arbitrary degree 3. version3: isoparametric elements of arbitrary degree 4. adaptive: local refinement, a posteriori error estimates, etc.)

文件是 天线与电波传播 第3版 2017 的课件资源。 该书围绕天线与电波传播两大内容展开。全书共 14 章。前9章为天线部分，各章内容分别为：天线基础知识、简单线天线、行波天线、非频变天线、缝隙天线与微带天线、手机天线、测向天线、面天线、新型天线；后5章为电波传播部分，各章内容分别为：电波传播的基础知识、地面波传播、天波传播、视距传播、地面移动通信中接收场强的预测。(The document is the courseware resource of the third edition of antenna and radio wave propagation 2017. The book launches around two main contents: antenna and radio wave propagation. The book consists of 14 chapters. The first nine chapters are the antenna section, which includes the basic knowledge of antenna, simple wire antenna, traveling wave antenna, non-frequency-varying antenna, slot antenna and microstrip antenna, mobile phone antenna, direction finding antenna, surface antenna and new type antenna, and the last five chapters are the radio wave propagation section, which includes the basic knowledge of radio wave propagation, the ground. Wave propagation, sky wave propagation, line of sight propagation, and prediction of received field strength in ground mobile communication.)

非常好的聚类工具包，用Matlab开发，适合于科研用途等()

说明：  MUSIC 算法的实现原理 及其流程 数字信号处理(MUSIC algorithm implementation process of digital signal processing theory and)

最速下降法，基於matlab開發環境，可用於求解優化問題(The steepest descent method, based on matlab development environment can be used to solve optimization problems)

the matlab file to calculate radar PRF staggering