graymapping

前向反馈BP神经网络算法matlab源程序，有详细的注释，是学习编写程序的基本例程。(Feedback prior to the BP neural network algorithm matlab source code, there are detailed notes, is to learn the basic programming routines.)

说明：  matlab .M函数库，自己整理的，我用的很好，朋友们能参考一下(matlab. M library, his finishing, I use the good friends who can refer to)

高教版数值分析的matlab代码,误差与范数,非线性方程（组）的数值解法,解线性方程组的直接方法,解线性方程组的迭代法,矩阵的特征值与特征向量的计算,函数的插值方法,函数逼近与曲线（面）拟合,数值微分，数值积分，常微分方程（组）求解(entire codes for numerical analysis based on matlab)

heed分簇算法，基于剩余能量，地理位置合理选择簇头，使能量均衡，防止出现能量空洞，延长网络生命周期(heed clustering algorithm, a reasonable choice based on the remaining energy cluster head, geographical location, the energy balance, to prevent the energy hole and prolong the network life cycle )

小波包分析提取振动信号中的特征频率，包括四元数的各种计算,包括随机梯度算法，相对梯度算法。( Wavelet packet analysis to extract vibration signal characteristic frequency, Including quaternion various calculations, Including stochastic gradient algorithm, the relative gradient algorithm.)

超声斑点；瑞利分布；伽马分布；Hilbert空间填充；斑点图像(Ultrasound speckle Rayleigh distribution gamma distribution fill a Hilbert space spots image)

元胞自动机的matlab程序。 元胞自动机（CA）是一种用来仿真局部规则和局部联系的方法。典型的元胞自动机是定义在网格上的，每一个点上的网格代表一个元胞与一种有限的状态。变化规则适用于每一个元胞并且同时进行。典型的变化规则，决定于元胞的状态，以及其（ 4或8 ）邻居的状态。元胞自动机已被应用于物理模拟，生物模拟等领域。(Cellular Automata matlab procedures. Cellular Automata (CA) is a simulation used to contact the local rules and local approach. A typical cellular automaton is defined in the grid, each grid point represents a cell with a limited state. Changes in the rules applicable to each cell and at the same time. Typical changes in the rules of decision in the cellular state, as well as its (4 or 8) neighbor state. Cellular Automata have been used in physical simulation, biological simulation and other fields.)

FSK调制方法 (FSK modulation)

matlab code for finding optimal values

matlab code for EM algorithm for Gaussian mixture model