2D_wartermarking

space vector modulation with simulink

说明：  it is a simulation about ML synchronization algorithm in OFDM systems,you can slao see a function picture in its output,that s useful for a beginner

duffing方程的混沌判别中使用到了庞加莱截面，即多维相空间中适当选取一截面 ，此截面不与轨线相切，不包含轨线，且便于观察系统的运动特征变化.(use Poincare chaotic duffing equation discriminant, multi-dimensional phase space appropriate to select a cross-section, this section is not tangent to the trajectory does not contain the rail line, and easy motion characteristics of the observed system changes.)

一维的求根多重信号分类算法Root-MUSIC，在matlab环境下实现(One-dimensional root finding multiple signal classification algorithm Root-MUSIC, in the matlab environment to achieve)

This example solves a 2nd order wave equation: utt = uxx + uyy, with u = 0 on the boundaries. It uses a 2nd order central finite difference in time and a Chebyshev spectral method in space (using FFT). It compares to running the same algorithm on the GPU using gpu-arrays and built-in functions available for the GPU.

说明：  用遗传算法优化BP神经网络的初始权值与阈值.使用gaot与nntools(Use ga optimative the weight and bias of BP neural network.)

利用K均值思想进行数据的有效分类，经验证，有效、可靠性强。(Effective classification of the data using K-means thinking, proven, effective, and reliability.)

说明：  边缘预测提出了一种基于预测的、有一定自适应性的边缘检测方法。介绍了其原理和算法实现过程。通过计算两个相邻像素的灰度值的均值、均方差和梯度来预测下一个像素的灰度值,比较预测值和真实值来判断下一个像素是否是边界点。通过与现有同类算法的比较,证明了该算法的优越性(A predictive and adaptive edge detection method is proposed. The principle and implementation process of the algorithm are introduced. The gray value of the next pixel is predicted by calculating the mean, mean square deviation and gradient of the gray value of the two adjacent pixels. The prediction value and the real value are compared to determine whether the next pixel is a boundary point. The superiority of this algorithm is proved by comparing with the existing similar algorithms.)

主要介绍了MATLAB中常用的函数。按照函数名首字母排序，已注明其对应功能。(Mainly introduces the commonly used MATLAB function. In accordance with the function of the first alphabetical order, specifying the functionality of its counterparts.)

这是一个车辆仿真模型，总共6个自由度，车身两个，车轮四个(This is a vehicle simulation model, with a total of 6 degrees of freedom, two bodies and four wheels.)