OFDM-channel-estimation-BER

图论中求最短路径问题，首先形成矩阵，调用矩阵，用此函数求出各点间最短路径(Graph theory to seek the shortest path problem, first of all, the formation of matrix, called matrix, use this function to derive the shortest path between points)

optical character recognition for Arabic numbers

通过分析组织图、穿综图和纹板图三者的关系,在对织物上机图进行矩阵建模的基础上,提出了一种基于Matlab程序设计自动产生并绘制上机图的新方法.(By analyzing the organization chart, diagram and pattern heald board map of the three, on the basis of the fabric machine diagram matrix modeling, is proposed based on Matlab programming automatically generated and new ways to draw on the local map.)

FDTD解Maxwell旋度方程，三维直角坐标空间格子内包含均匀三次单元格(finite-difference time-domain solution of Maxwell s curl equations over a three-dimensional Cartesian space lattice comprised of uniform cubic grid cells. )

说明：  跳频扩谱通信matlab代码，实现跳频通信系统仿真。(Matlab code for frequency hopping spread spectrum communications, to achieve frequency hopping communication system simulation.)

说明：  逆合成孔径雷达仿真舰船图像，包括舰船的俯仰、滚动、偏航运动。(Inverse synthetic aperture radar image simulation of ship, including the ship' s pitch, roll, yaw movement.)

设r是f(x) = 0的根，选取x0作为r初始近似值，过点（x0,f(x0)）做曲线y = f(x)的切线L，L的方程为y = f(x0)+f (x0)(x-x0)，求出L与x轴交点的横坐标 x1 = x0-f(x0)/f (x0)，称x1为r的一次近似值。过点（x1,f(x1)）做曲线y = f(x)的切线，并求该切线与x轴交点的横坐标 x2 = x1-f(x1)/f (x1)，称x2为r的二次近似值。重复以上过程，得r的近似值序列，其中x(n+1)=x(n)－f(x(n))/f (x(n))，称为r的n+1次近似值(Let r is f (x) = 0 root, select the initial approximation x0 as the r, over point (x0, f (x0)) to do the curve y = f (x) the tangent L, L the equation y = f ( x0)+ f ' (x0) (x-x0), find the intersection of L and the x-axis of abscissa x1 = x0-f (x0)/f' (x0), x1 is called an approximation r. Through points (x1, f (x1)) to do the curve y = f (x) the tangent, and find the intersection of the tangent with the x-axis of abscissa x2 = x1-f (x1)/f ' (x1), x2 is called r the second approximation. Repeat the process, get an approximation of the sequence r, where x (n+1) = x (n)-f (x (n))/f ' (x (n)), as an approximation of r n+1 times)

Model-Based_Predictive_Control_A practical approach，pdf图书和图书配套的matlab仿真代码(Model-Based_Predictive_Control_A practical approach, book and matlab code for this book)

一篇博士论文，关于降低OFDM峰均比的，提出了新方法，是关于矩阵变换降低OFDM峰均比(A doctoral thesis, on reducing the PAPR of OFDM, this paper puts forward a new method of matrix transformation, is to reduce the PAPR of OFDM )

QPSK 在高斯信道下的调制解调的matlab仿真实现，可显示输入数据的波形表示，I支路和Q支路以及调制前、解调后、接收的波形、星座图等(In the Gaussian channel QPSK modulation and demodulation matlab Simulation, the waveform can be displayed, said input data, I branch and Q branch, and before modulation, demodulation, the received waveform, constellation, etc.)