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Genetic Algorithm for function maximization. Especially useful for functions with kinks and discontinuities, and where a good "starting point" is unavailable.

这是周建兴编写的<<matlab从入门到精通》第三章的所有源代码，都可以运行的出来，和课本上的一样，(This is Zhoujian Xing written < <matlab从入门到精通》第三章的所有源代码，都可以运行的出来，和课本上的一样，)

张量的模式展开是一个基本的技术，已有各种代码展开结果不尽相同，本代码是根据张量研究领域权威文献“Tensor Deco们positions and Applications”中的公式编写，并经过多次实例验证，与理论描述相符。文件包括两个m文件，一个是按模n展开，而另一个是逆变换，即按模n叠合。(unfolding of the tensor mode is a basic technology, there are a variety of code to make different result. However this code is written by referring to the authority of the tensor field of research literature Tensor Deco their positions and Applications and after several instances verification, is consistent with the theoretical description. The documents include two m-files, one is unfold.m, and the other is the inverse transformation, that is refold.m.)

用matlab来仿真ofdm调制算法，ofdm技术用于4G无线通信系统。(Ofdm simulation using matlab to modulation algorithm, ofdm technology for 4G wireless communications systems.)

用镜像矩阵求出矩阵的QR分解（正交三角分解），并求解线性方程组，该方法不必选主元，但其计算过程非常稳定。也可用于求矩阵的广义逆和求解线性最小二乘问题。子过程QRDCMP用镜像矩阵求m*n矩阵A的QR分解，A=Q^TR,其中Q是m*m正交矩阵，R为m*n上三角矩阵；子过程QRBKSB用矩阵的QR分解求解线性方程组Ax=b，其中A为n阶非奇异方阵。(Matrix obtained with the mirror matrix QR decomposition (orthogonal triangular decomposition), and solving linear equations, the method does not have to choose the main element, but its calculation process is very stable. Can also be used to find the generalized inverse matrix and solving linear least squares problems. Sub-process of the mirror matrix QRDCMP m* n matrix A QR decomposition, A = Q ^ TR, wherein Q is a m* m orthogonal matrix, R is m* n upper triangular matrix subprocess QRBKSB a QR decomposition to solve the matrix linear equations Ax = b, where A is non-singular square matrix of order n.)

分析了正弦信号分辨率问题，当采样频率相同时，点数越多，分辨率越高，频谱特性误差越小( Analysis the problem of resolution in a sinusoidal signal.When the sampling frequency is the same, the more points,the higher the resolution,and the error spectral characteristic is smaller.)

说明：  使用信号的Higuchi分行维数提取出信号的暂态特征(Using Higuchi Branch Dimension of Signal to Extract Transient Characteristics of Signal)

对lena图嵌入的水印进行提取 LSB方法 水印图像被分解嵌入 提取各部分块儿后进行重建 可以运行 有一定参考价值 (Figure of lena LSB embedded watermark extraction method to extract the watermark embedded image is broken down pieces of the various parts of the reconstruction can be run after a certain reference value)

熵,联合熵,条件熵,平均互信息量的通用计算程序(Entropy, joint entropy, conditional entropy, average mutual information of the general-purpose computer program)

matlab 教程 matlab的入门到精 matlab详细代码范例(Matlab tutorial matlab approaches to fine matlab detailed example code )