StephenJ_Chapman_Matlab

求一个复正弦加白噪声随机过程的信号： xn=exp(j*pi*n-j*pi)+exp(j*w0*n-j*0.7*pi)+v v(n)为零均值白噪声。S/N=10dB。取P=3，构造4阶的自相关矩阵R的基于MUSIC算法的功率谱估计的MATLAB程序(For a complex sinusoid plus white noise of the signal random process: xn = exp (j* pi* nj* pi)+ exp (j* w0* nj* 0.7* pi)+ v v (n) zero mean white noise. S/N = 10dB. Take P = 3, constructed of 4-order auto-correlation matrix R of the MUSIC algorithm based on power spectrum estimation procedure of MATLAB)

一种基于矢量量化快速编码的图像压缩方法种基于矢量量化快速编码的图像压缩方法 (A Fast Vector Quantization Encoding Method for Image Compression)

绘制张量积H-Bezier曲面的matlab程序，不同于传统的Bezier曲面，H-Bezier曲面由纯双曲多项式定义。压缩包中，DrawHBezierSurf.m文件可运行，其中可以设置控制顶点和形状因子，可以更改控制网格的颜色。程序对任意m*n阶的H-Bezier曲面均适用。(Draw tensor product H-Bezier surfaces matlab program, unlike traditional Bezier surfaces, H-Bezier polynomial curve defined by pure hyperbolic. Compressed package, DrawHBezierSurf.m files can be run, where you can set control points and form factors, you can change the color of the control grid. Program for any m* n order H-Bezier surfaces are applicable.)

黄金分割在文艺复兴前后,经过阿拉伯人传入欧洲,受到了欧洲人的欢迎,他们称之为"金法",17世纪欧洲的一位数学家,黄金分割数有许多有趣的性质,人类对它的实际应用也很广泛(Golden section before and after the Renaissance, after the Arabs introduced into Europe, has been welcomed by the Europeans, they called the Golden Law , 17th century Europe, a mathematician, a few golden section there are many interesting nature, human Its practical application is very broad)

传算法（Genetic Algorithm）是一类借鉴生物界的进化规律（适者生存，优胜劣汰遗传机制）演化而来的随机化搜索方法。它是由美国的J.Holland教授1975年首先提出，其主要特点是直接对结构对象进行操作，不存在求导和函数连续性的限定；具有内在的隐并行性和更好的全局寻优能力；采用概率化的寻优方法，能自动获取和指导优化的搜索空间，自适应地调整搜索方向，不需要确定的规则。遗传算法的这些性质，已被人们广泛地应用于组合优化、机器学习、信号处理、自适应控制和人工生命等领域。它是现代有关智能计算中的关键技术(Propagation algorithm (Genetic Algorithm) is a law of evolution in biology class reference (survival of the fittest, survival of the fittest genetic mechanisms) randomized search method evolved. It was first proposed by the United States J.Holland professor in 1975, and its main feature is to operate directly on the structure of the object, the continuity of the derivative and the function limitation does not exist with global implicit parallelism inherent and better optimization capability the use of probabilistic optimization method that can automatically obtain and guidance to optimize the search space adaptively adjust the search direction, the rule does not require determined. The nature of the genetic algorithm, has been widely used in combinatorial optimization, machine learning, signal processing fields, such as adaptive control and artificial life. It is about smart modern computing key technologies)

code for sorting image gray levels

ART1自适应谐振网，已经通过测试，分类性能良好并且准确，此程序已经完成了运行，希望大家好好利用(ART1 adaptive resonance network, has passed the test, the classification performance is good and accurate, this program has completed running, I hope you make good use of)

smart antenna and adaptive antenna array beamforming

字典树的基本功能是用来查询某个单词（前缀）在所有单词中出现次数的一种数据结构，它的插入和查询复杂度都为O(len),Len为单词（前缀）长度，但是它的空间复杂度却非常高，如果字符集是26个字母，那每个节点的度就有26个，典型的以空间换时间结构。(The basic function of the dictionary tree data structure is used to query a number of times a word (prefix) appears in all the words, which insertion and query complexity are O (len), Len is a word (prefix) length, but its space complexity is very high, if the character set is 26 letters, and that the degree of each node will have 26, the typical structure of space for time.)

AES coding end de-coding by matlab