sem_panel_FE

说明：  多类划分 matlab中使用数据挖掘的实例一个 方便新人参考(Matlab data mining multi-class classification)

自动读取使用者下载的地震波文件进行绘制位移谱，伪速度谱和加速度谱的工作，将地震波选波自动化。(Seismic waves that automatically read the users to download files draw displacement spectra, pseudo-velocity spectrum and the acceleration spectrum of work, the automation of the election wave of the seismic waves.)

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)

tep 1：对遗传算法的运行参数进行赋值。参数包括种群规模、变量个数、交叉概率、变异概 率以及遗传运算的终止进化代数。 Step 2：建立区域描述器。根据轨道交通与常规公交运营协调模型的求解变量的约束条件，设 置变量的取值范围。 Step 3：在Step 2的变量取值范围内，随机产生初始群体，代入适应度函数计算其适应度值。 Step 4：执行比例选择算子进行选择操作。 Step 5：按交叉概率对交叉算子执行交叉操作。 Step 6：按变异概率执行离散变异操作。 Step 7：计算Step 6得到局部最优解中每个个体的适应值，并执行最优个体保存策略。 Step 8：判断是否满足遗传运算的终止进化代数，不满足则返回Step 4，满足则输出运算结果。 其次，运用遗传算法工具箱。(Matlab genetic algorithm toolbox)

mimo with cm1-4 channels

说明：  计算任一语音信号的短时自相关函数，并用画图的形式表现出来，可自定义样本数，和采样频率。方便简洁。(Any calculation of short-time speech signal autocorrelation function, and use the form of drawing out the number of samples can be customized, and the sampling frequency. Easy to clean.)

用各种算法编写的功率谱估计程序，有周期图法，BT法，Bartlett法，welch法，burg法，还附加了详细的实验报告和注释，对新手特别有用！(Program for PSD,especially useful for green man ！)

These are the Matlab programs discussed in Craig Burnside, Discrete State-Space Methods for the Study of Dynamic Economies, in Ramon Marimon and Andrew Scott, eds. Computational Methods for the Study of Dynamic Economies. Oxford: Oxford University Press, 1999.

内容丰富的OFDMA比特、功率、子载波分配算法。(OFDMA bit rich, power, subcarrier allocation algorithm.)

这是matlab的时间预测的代码，非常实用，大家共享啊(This is the time predicted matlab code, very useful, share ah)