摩擦动力学计算相关程序 friction-damper

matlab区域增长法法进行图像边缘检测(region growing method matlab edge detection method)

SVPWM仿真的matlab模块，仅供参考。(SVPWM simulation matlab module, for reference only.)

一种改进的最近邻聚类算法，能够改进普通的最近邻聚类算法的不足(An improved nearest neighbor clustering algorithm, it is possible to improve the lack of common nearest neighbor clustering algorithm)

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.

自适应混沌粒子群算法的matlab程序，有测试函数(Adaptive chaotic particle swarm algorithm matlab procedures, test function)

v/f control of induction motor

说明：  变分模态分解算法是2014年新提出的，广泛应用于信号处理领域。 VMD分解的子程序，给定分解的时域信号，数据保真约束平衡参数、噪声波峰时间步长、VMD分解个数、迭代精度可以得到 分解的子分量、子分量的波谱、各模式的中心频率。(The variational mode decomposition (VMD) algorithm was proposed in 2014, which is widely used in the field of signal processing. Given the time domain signal decomposed by VMD, the data fidelity constraint balance parameter, the time step of noise peak, the number of VMD decomposition and the iteration accuracy, the decomposed sub components, the spectrum of sub components and the center frequency of each mode can be obtained.)

说明：  在灰度范围[100,200]内显示图像，以灰度等级20显示图像(In gray-scale range of [100,200] display image to 20 gray levels display images)

该代码采用matlab和C混合编写，是采用随机梯度的方法训练线性分类器，它可用于数据、图像等的多类分类情况。参考论文：Good Practice in Large-Scale Learning for Image Classification(This a Stochastic Gradient Descent algorithm used to train linear multiclass classifiers. It is biased towards large classification problems (many classes, many examples, high dimensional data).)

本代码是ADC有效位测试的三参数经典算法的MATLAB文件，仅供参考。(the code is for enob of ADC using classical 3-parameter testing method.)