qtom

基于FDTD算法，用MATLAB实现了波导色散特性的仿真研究(Based on the FDTD algorithm, implemented using MATLAB simulation of waveguide dispersion characteristics)

利用Canny Filter找到图像的角点并且化出Box，可以用来进行图像配准(A Canny Cornner Detection programming with cornor box labelling. Good for image registration feature point matching.)

addmitance matrix for solving load flow analysis

远场2D 解相干 music算法 均匀圆阵(far field coherent music 2D solution algorithm uniform circular array)

增广最小二乘法参数估计，系统辨识，针对含有输出噪声的SISO模型。(Augmented least squares parameter estimation, system identification, aimed at containing the output noise of the SISO model.)

说明：  实现神经网络的bp识别手写数字。改程序师用MATLAB实现的，里面代码可以直接用(Bp neural network to achieve handwritten numeral recognition. Reform program to achieve the division to use MATLAB, which code can be directly used)

QR码作为一种可高速、全方位识别的二维条码,已经在各行各业中得到了应用,并具有很大发展潜力.本文针对QR码图像的识别过程中可能遇到的图像噪声干扰、QR码占实际拍摄图像的一部分、倾斜、几何失真等问题进行了研究,提出了通过改进型中值滤波去除噪声,使用QR码符号特性定位并对倾斜图像进行旋转,对失真不严重的图像采用控制点变换和双线性插值方法进行几何校正.实验证明, 本文的方法简单有效, 可以用于提高条码的正确识别率.(As a high-speed, full identification of the two-dimensional bar code, QR code has been applied in all walks of life, and also has great potential for development. In this paper, aiming at QR code image recognition process may be encountered in noise interference, QR code accounting for the actual captured image just a part, slant, geometric distortion, and other issues have been studied, put forward through improved median filter to remove noise, use QR code symbol characteristics to locate and rotate the tilted image, distortion which is not serious use control-point transform and spatial bilinear interpolation method for geometric correction. The results show that this method is simple and effective, can be used to improve the QR code correct recognition rate.)

matlab chapter 5 unsolved practical problems

简单实用的矩阵束测到达时间（TOA），仿真过程包括：频域信道的仿真，矩阵束计算过程。(simple matrix pencil for TOA,including frenquency domain channel simulation and the algrithm of matrix pencil.)

计算混沌序列的分形维数，内附有洛伦兹序列和哈农序列，可以根据自己所需，产生感兴趣的序列，自行添加。(Fractal dimension calculation chaotic sequence, the sequence is enclosed and Hanon Lorentz sequence, can according to their required to produce a sequence of interest, add their own.)