Paper2

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.)

这是一个粒子群算法（PSO）用于特征选择的matlab函数，用户可以自由选择目标函数优化方向、种群大小、迭代次数等等。(this is an feature selection program with particle swarm optimization of matlab ,you can chose the Function optimization direction the scale of the swarm and the number of the iteration)

说明：  基于利用TDOA算法在无线通信上进行的三维定位算法及数据。(Based on TDOA algorithm in the wireless communication on three dimensional localization algorithm and data.)

建立了基于MATLAB语言的七段译码器的仿真模型，通过了系统验证。(MATLAB language is established based on the seven-segment decoder simulation model validation by the system.)

回归分析中，检验自变量的重要性，将变量一个一个引入引入变量的条件是其偏回归平方和经检验时显著的，在引入新变量的同时，对已入选的变量逐个检验，将不显著的变量剔除。(The importance of the independent variables of regression analysis, test, introducing variable is introduced one by one into the condition of variable is the partial regression sum of squares in significantly after inspection, and at the same time of introducing new variables, for the selected variables one by one test, will not be significant variables.)

基于MUSIC算法的OFDM系统子载波个数盲估计(Bind Estimation of the number of subcarriers of the OFDM system based on MUSIC algorithm)

线行方程组的Gauss Jacobi 及一个简单的自适应算法(Line line Gauss Jacobi equations and a simple adaptive algorithm)

为了对付从旁瓣进入的有源干扰，采用4个辅助天线，采样后求相消权值，加权后和主通道对消(the matlab code for slc alogorithm simulation)

edge detection (laplacian)

this is random decermin technique for mode estimation with wavelet techiniq