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四元数Hartley仿射变换。对研究四元数Hartley仿射变换的不变性有帮助(quaternion hartley affine transform～～)

我自己写的小波神经网络的Matlab程序，包含了单维的高维的两种网络模型，比较全面，而且代码中加入开发的初始化算法，使用时只需要更换训练样本就可以了。希望对论文写作有所帮助(I wrote it myself WNN Matlab procedures, includes a one-dimensional two high-dimensional network model, a more comprehensive, but also to add code to initialize the development of algorithms, using only training samples need to replace it. Writing wish to be helpful)

Matlab 有限元分析 LTQN 很少见FDTD MOM(Matlab finite element analysis LTQN rare)

this code is to classify objects based on their roundness using bwboundaries, a boundary tracing routine.

Book MIMO MATlab OFDM

bp神经网路在地震预测中的应用，分别采用gd、gdx、lm训练方法，供大家参考~(bp neural network in the earthquake prediction, respectively, using gd, gdx, lm training methods for your reference ~)

克里金法广泛地应用于地下水模拟、土壤制图等领域，是一种很有用的地质统计格网化方法。它首先考虑的是空间属性在空间位置上的变异分布．确定对一个待插点值有影响的距离范围，然后用此范围内的采样点来估计待插点的属性值。该方法在数学上可对所研究的对象提供一种最佳线性无偏估计(某点处的确定值)的方法。它是考虑了信息样品的形状、大小及与待估计块段相互间的空间位置等几何特征以及品位的空间结构之后，为达到线性、无偏和最小估计方差的估计，而对每一个样品赋与一定的系数，最后　进行加权平均来估计块段品位的方法。(Kriging is a technique that provides the Best Linear Unbiased Estimator of the unknown fields (Journel and Huijbregts, 1978 Kitanidis, 1997). It is a local estimator that can provide the interpolation and extrapolation of the originally sparsely sampled data that are assumed to be reasonably characterized by the Intrinsic Statistical Model (ISM). An ISM does not require the quantity of interest to be stationary, i.e. its mean and standard deviation are independent of position, but rather that its covariance function depends on the separation of two data points)

function [xphi, phi, xpsi, psi] = Plot_Multiwavelet(H, r, m, n_refine) Compute the point values of the scaling function and wavelet(s) at all points of the form n*dx which fall inside the support of phi.

matlab的网格光栅的模拟程序，需要学习光栅知识的同学可下载(mesh grating matlab simulation program, students need to learn the knowledge of the grating can be downloaded.)

这是有关正弦波频率估计的几种算法，包括过零点检测，rife算法，music算法，levensen法，周期图法等7种不同算法。(This is several algorithm for frequency estimation of sinusoid, including zero crossing detection, rife algorithm, music algorithm, levensen method, periodogram method 7 different algorithms.)