simsim_sdm_read

非线性方程求解1--5（3） 非线性方程求解1--5（3）

说明：  本程序实现了采用聚类法对图像进行分割，给出了图像分割前后的直方图，程序内有详细的程序说明和例图像(This program was realized using clustering method for image segmentation is presented, and the histogram image segmentation, procedure in detail program)

说明：  遗传算法的小程序，希望能够对大家有用处！(genetic algorithm for small procedures, we hope to be able to be useful!)

简单的采样，设计一个输入序列，实现其采样，绘出采样后的时域波形(Simple sampling design an input sequence, to achieve its sample, drawn after the time-domain waveform sampling)

a matlab code for calculating the lyapunov exponents for any given system

读取NMEA0183格式，适合做卫星导航读取数据参考，可以用于科研。(Read the NMEA0183 format, suitable for satellite navigation read data reference, can be used in scientific research.)

PCA的步骤： 1 先将数据中心化； 2 求得的协方差矩阵； 3 求出协方差矩阵的特征值与特征向量； 4 将特征值与特征向量进行排序； 5 根据要降维的维数d’,求得要降维的投影方向； 6 求出降维后的数据； (PCA steps: 1 of the first data center 2 covariance matrix obtained 3 obtained covariance matrix eigenvalues and eigenvectors 4 eigenvalues and eigenvectors will be sorted 5 according to the dimension of dimension reduction d ' , seek to reduce the dimension projection direction 6, the data obtained after the dimensionality reduction )

空时码和mimoofdm系统相结合的matlab程序(Space-time code and mimoofdm system combining matlab program)

this is an optimization code in matlab

模拟了电法测井中双感应测井在地层中的电导率相应特征(we simulate the response conductivity in formation of dual-induction logging. )