mathematica

针对非圆信号DOA估计问题,提出了一种基于实值特征值分解 (Eigenvalue decomposition,EVD)的求根MUSIC算法.首先利用非圆信号为实值信号的特点,将阵列上的接收数据及其共轭用欧拉公式转换为实值正弦与 余弦数据,然后将正弦与余弦数据进行串联,从而扩展了数据维数.由于采用实值矩阵的EVD,因此在EVD阶段的运算量简化为复值EVD的1/4.根据 EVD后获得的信号与噪声子空间的特点,对噪声子空间和导向矩阵进行重构以便于可以使用求根MUSIC算法获取对DOA的估计.仿真实验验证了本文算法的 有效性(For the estimation of noncircular signals of DOA, proposes a decomposition value based on real valued features (Eigenvalue decomposition, EVD) the root MUSIC algorithm. Firstly, characteristics of non circular signals for real valued signals, the array data and its conjugate with the Euler formula into real value of sine and cosine and sine and cosine data. The data series, thus expanding the dimension of the data. Because of the use of real valued matrix computation in EVD, so the EVD stage was simplified as a complex valued EVD 1/4. according to the characteristics of signal and noise subspace is obtained after EVD, the noise subspace and orientation matrix reconstruction in order to facilitate the use of DOA can obtain the estimated root MUSIC the algorithm. The simulation results verify the effectiveness of the proposed algorithm)

最大信噪比的独立分量分析算法，一种噪声辅助数据分析方法,ML法能够很好的估计信号的信噪比。( SNR largest independent component analysis algorithm, A noise auxiliary data analysis method, ML estimation method can be a good signal to noise ratio.)

利用matlab摄像头识别EAN13一维条形码，按键时会弹出错误但不影响用(Matlab camera identification using one-dimensional bar codes EAN13, buttons will pop up with an error but does not affect)

说明：  Lorenz 系统利用龙格库塔来用Matlab编程(Lorenz system using Runge-Kutta to use the Matlab programming)

说明：  程序实现汉明码的编码与译码，与一般程序不同，该程序具有良好的接口(Program for hamming code encoding and decoding, and the general procedure, this program has a good interface)

matlab的降维工具箱 从官网上下载的(Dimensionality reduction downloaded the official website matlab toolbox)

VMWare是一个“虚拟PC”软件.它使你可以在一台机器上同时运行二个(VMWare is a virtual PC software, which allows you to run two at the same time on a single machine)

matlab遗传算法工具箱函数及实例讲解2 【问题】在－5<=Xi<=5,i=1,2区间内，求解 f(x1,x2)=-20*exp(-0.2*sqrt(0.5*(x1.^2+x2.^2)))-exp(0.5*(cos(2*pi*x1)+cos(2*pi*x2)))+22.71282的最小值。 (matlab genetic algorithm toolbox function and examples to explain the problem [2] in-5 )

matlab反射波正演模拟，学姐编的小程序，欢迎交流(matlab reflected wave forward modeling, sister compiled a small program, please share)

Using serial port with Matlab GUI.