Numerical-analysis

matlab带噪声周期信号的自相关运算代码仿真有图(autocorrelation matlab periodic signal with noise)

基于Matlab语言的层次特征算法，用于实现图像特诊的提取！！(Hierarchical feature algorithms based on Matlab language, for the extraction of images to achieve the special diagnosis!! )

说明：  Simulation Distribution 3

提出一种新的混合数字水印算法，它利用了 两种方法最好抵制JPEG压缩。(develop a novel hybrid watermarking algorithm that exploits the best of both approaches for greater resilience to JPEG compres- sion. )

最速下降法求解非线性方程组，此程序求解了【6x-sin（y）-50=0 cos（x）-4y-70=0】这一方程的解，大家可以把方程组改换，应用于自己的题目，例子。(Steepest descent method for solving nonlinear equations, this procedure solved 【6x-sin (y)-50 = 0 cos (x)-4y-70 = 0】 solution of this equation, we can change the equations, applications in their own subject, example.)

在高斯背景下，测试在随机信号情况下的大特征值个数问题，并仿真了杂波功率谱(Gaussian background, test the number of large eigenvalues ​ ​ in the case of random signals, and simulate the noise power spectrum)

已知一组二维模式矢量如下（20个）,利用k均值聚类算法将模式集分类，并计算出聚类中心。利用输入层为2个神经元，输出层结构为7*7方阵的自组织映射（SOFM）对同样模式进行聚类(Given a set of two-dimensional pattern vector as follows (20), the use of k-means clustering algorithm to classify the pattern set, and calculate the cluster center. Using the input layer 2 neurons, the output layer structure for self-organizing map 7* 7 phalanx (SOFM) for the same model clustering)

MATLAB 摄像头视频获取和保存，可用于目标追踪(MATLAB camera video acquisition and preservation, it can be used for target tracking)

wcdma标准，产生单载波matlab信号源，设定任意帧长(the wcdma standards, resulting in single-carrier Matlab source, set any frame size)

语音识别中几个常用例程： 语音信号高频提升、短时能量检测、过零率计算、LPCC系数计算、基于短时能量和过零率的语音信号端点检测。(voice recogniton)