dbq

Other simulation OFDMA

说明：  采用2发1收的MISO—OFDM系统，对STBC／ SFBC／STFBC在不同的频率／时问选择性信道环境下进行了性能仿真比较。(A comparison of STBC，SFBC and STFBC has been conducted under the different frequency／time seleetive fading channel by using two by one MISO—OFDM system．)

HMM模型的MATLAB实现，HMM模型是语音识别方面一个重要的技术手段(HMM in MATLAB, HMM Speech Recognition is an important area of technical means)

Matlab中有很多根据多边形顶点计算多边形面积，对多边形涂色等函数，但是并没有对多边形顶点进行凸多边形排序问题，所以写了这个对可以构成凸多边形的顶点进行排序的算法。( 此子程序功能为逆时针排列多个可构成一个凸多边形的顶点 输入参数xv是这些顶点的横坐标集合 yv是这些坐标的纵坐标集合 返回的排列好的点的横坐标和纵坐标集合. 使用示例: [x y]=rangePolyponPoint([0 10 10 0],[0 10 0 10]) 输出结果为：x = [ 0 10 10 0], y = [ 0 0 10 10].)

用Python语言编写的改进的人工势场法代码。解决了目标不可达问题。(The improved artificial potential field code written in Python language. The problem of inaccessibility of goals has been solved.)

电网发生三相对称故障时，基于dq变化法的电压跌落检测(Symmetrical three-phase power grid failure, the voltage drop dq transform method based on the detection)

一维正弦调制脉冲传播演示，PML吸收 a a a (a one demension sin wave demonstration, PML absorbed boundary a a a a a a a a a a)

For inverting a matrix, Gauss-Jordan elimination is about as efficient as any other method. For solving sets of linear equations, Gauss-Jordan elimination produces both the solution of the equations for one or more right-hand side vectors b, and also the matrix inverse A(-1). However, its principal weaknesses are (i) that it requires all the right-hand sides to be stored and manipulated at the same time, and (ii) that when the inverse matrix is not desired, Gauss-Jordan is three times slower than the best alternative technique for solving a single linear set.

在MATLAB 环境下一些图像处理的例子，MATLAB R2008数字图像处理与分析实例教程源程序.(Some examples in MATLAB environment for image processing, MATLAB R2008 digital image processing and analysis tutorial examples source.)

matlab函数图形化界面学习程序，有利于初学者学习GUI(graphical interface matlab function learning process will help beginners to learn GUI)