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是一个人脸识别系统，过程非常详细，对学习非常有帮助(Is a face recognition system, the process is very detailed and very helpful in learning)

This function is for training a codebook for vector quantization. The data set is split to two clusters, first, and the mean of each cluster is found (centroids). The disttance of each vector from these centroids is found and each vector is associated with a cluster. The mean of vectors of each cluster replaces the centroid first. If the total distance is not improved substantially, The centroids are each split to two. This goes on untill the required number of clusters is reached and the improvement is not substantial.

说明：  用模式传输法计算多模干涉波导的模场传输,多模干涉波导参数可调(calculate the beam propagation inside MMI using mode propagation method)

解线性方程组的直接法，我搜集的matlab程序，希望对同学有用，希望大家学习！(Solving linear equations, direct method, I collected the matlab program, the students hope to be useful, I hope you learn!)

TDOA定位定位Chan算法,CHAN算法,假设移动台与各基站位置较近,需进行三四WLS计算 输入参数: R(N-1×1): TDOA测量值 Pbs(N×2): 基站的坐标,第一列为X,第二列为Y 参考基站坐标位于第一行 输出参数: POS_ref(2X1):第一次WLS的估计结果,作为参考作最终定位结果的判决 POS1(2X1) :定位结果1 POS2(2X1) :定位结果2 POS3(2X1) :定位结果3 POS4(2X1) :定位结果4(TDOA Location positioning Chan algorithm)

This is a DoA estimation algorithm named BARTLETT.

说明：  自适应滤波器相关的matlab程序，包含LMS，RLS算法等的实现。由于太大了，所以该资源分为part1和part2两部分。(matlab codes related to adaptive filters, including LMS and RLS algorithm, etc. the resource is divided to two parts (part1 + part2) cuz it is oversized.)

各种雷达脉冲压缩信号的时域，频域以及模糊函数仿真(A variety of radar pulse compression signal in time domain, frequency domain as well as the ambiguity function simulation)

指数平滑法是对时间序列进行预测常用的方法之一,其理论基础是趋势外延，即未来一定时期内事物在数量上的演变特征不脱离过去的发展趋势,预测值是以前所有观测值的加权和,且对不同的数据给予不同的权数,越近期数据给予越大的权数,越远期的数据给予越小的权数。(Exponential smoothing method is commonly used to predict the time series one of the ways, the theoretical basis of the trend of the extension, that is, a certain period of time what the next evolution in the number of characteristics are not out of the development trend of the past to predict the value of all previous observations is the weighted and, on different data and different weights given to more recent data to give greater weights, the more long-term data to give the smaller weights.)

matlab的画图的程序使用，数形结合的重要工具，灵活掌握对于matlab开始的学习很重要。(matlab program to use the Paint, The Combination of the important tools, flexibility of learning for matlab start is important.)