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pso function file in matlab

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)

说明：  混沌工具 function x=logistic(n,level,a,x0)(function x=logistic(n,level,a,x0))

引入路径权重的自适应蚁群算法用于应急物资调度路径优化的Matlab代码 (The introduction of path weights adaptive ant colony algorithm for scheduling path of the emergency supplies optimized Matlab code)

基于matlab的线性预测系数和预测误差的语音信号合成(Lpc and prediction error of speech signal synthesis)

多项式提取一个数组或是曲线的趋势项 得到一个多项式表达式 以及拟合的新数组(Extract an array of polynomial curve or a polynomial trend item to get a new array of expressions and fitting)

convex_round-hole 光波透过圆孔模拟透镜成像效果(convex_round-hole wave through the hole simulation results lens imaging)

建立了Buck-Boost降压-升压斩波电路仿真的模型。(Buck-Boost buck- boost chopper circuit simulation model.)

matlab算法，用bp网络进行训练，然后进行分类的一种算法，很成功(matlab algorithm, using bp network training, followed by a classification algorithm, very successful)

说明：  网格码，主要是进行TCM码编制。希望对大家有用。(Grid code, mainly for the preparation of TCM codes. Hope to be useful.)