reflectivity_DBR

Simple Pendulum -using Matlab-Arduino

基于混沌的模拟退火算法，小波包分析提取振动信号中的特征频率，BP神经网络的整个训练过程。( Chaos-based simulated annealing algorithm, Wavelet packet analysis to extract vibration signal characteristic frequency, The entire training process BP neural network.)

说明：  利用MATLAB初步实现车牌的截取以及字符识别.实验报告中包含有思路的详解与分析以及源代码.(Using MATLAB to recognize the car license. The report contains the process of thinking and analysis, as well as source code.)

its a project thing which u need to understand the basics forst otherwise

模拟时钟30秒，非常漂亮的界面，实时读取准确时间(Analog clock for 30 seconds, a very beautiful interface, real-time read accuracy)

MUSIC算法是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。MUSIC算法就是利用这两个互补空间之间的正交特性来估计空间信号的方位。噪声子空间的所有向量被用来构造谱，所有空间方位谱中的峰值位置对应信号的来波方位。MUSIC算法大大提高了测向分辨率，同时适应于任意形状的天线阵列，但是原型MUSIC算法要求来波信号是不相干的。(MUSIC algorithm is a matrix decomposition method based on feature space. From the geometric point of view, the observed spatial signal processing can be decomposed into signal subspace and noise subspace, it is clear that the two spaces are orthogonal. The signal received by the array to the subspace of the covariance matrix of the signal component corresponding eigenvectors, the noise subspace of the covariance matrix of all by the smallest eigenvalue (noise variance) eigenvectors corresponding to the composition. MUSIC algorithm is the use of orthogonal properties between these two complementary space to estimate the spatial orientation of the signal. Noise subspace of all vectors are used to construct the spectrum, all the spatial orientation of the spectrum corresponding to the peak position of the signal wave direction. MUSIC algorithm greatly improves the resolution measurements, while the antenna array adapted to any shape, but the prototype MUSIC algorithm requires to wave sign)

Quaternion library for inertial navigation system

说明：  从师兄那搞到的，以供学习， 单电源混沌测量电压电路模型(Single power supply chaos to measure the voltage circuit model)

基于matlab的水平层状模型的pml完全吸收边界，参数和速度模型可以自行更改。(The horizontally layered model matlab pml based entirely absorbing boundary, parameters, and velocity model can make changes.)

矢量控制的坐标变换，可以实现park变换(Coordinate transformation vector control can be achieved park transformation)