PSD

说明：  用matlab解决一些实际的问题,如交通,销售,动物繁殖等(using Matlab solve some practical problems, such as the transport, sale, breeding, etc.)

dynamic mfile for power systems stability (3 machine)

Independetn component analysis

这是一个简单的模糊逼近(matlab)源代码，可供参考(This is a simple fuzzy approximation (matlab) source code is available for reference)

火箭尾喷管的设计，主要包括动力计算，外形轮廓计算，温度计算及激波分布等。使用matlab编写(Rocket nozzle design)

一个计算用的matlab小程序，希望大家喜欢，谢谢(A calculation of the matlab small program I hope you like it, thank you)

说明：  利用随机方法产生-1 +1 分布的白噪声(using random methods-1 1 distribution of white noise)

有关matlab摄像机标定的工具箱，可直接标记摄像机的外参和内参(Camera calibration toolbox for matlab, directly outside the parameters of the camera and mark internal reference)

认知无线电中基于机会频谱接入方案，仿真感知信道的选择、发送和休眠时间优化。(Opportunities for cognitive radio spectrum access scheme based on the simulation perception channel selection, transmit and sleep time optimization.)

七单元天线阵MUSIC DOA估计： d=1 ， 天线阵元的间距； lma=2， 信号中心波长； 四输入信号； A=[A1,A2,A3,A4]， 得出A矩； 四信号的频率d=[1.3*cos(v1*n) 1*sin(v2*n) 1*sin(v3*n) 1*sin(v4*n)] 构造输入信号矢量 U=A*d 总的输入信号 总输入信号的协方差矩阵 [s,h]=eig(c) 求协方差的特征矢量及特征值 取出与零特征值对应的特征矢量 求协方差矩阵的逆矩阵 应用Music法估计输出 绘出各波达方向图(Seven-element antenna array MUSIC DOA estimates: d = 1, Antenna Array pitch LMA = 2 signal center wavelength four input signals A = [A1, A2, A3, and A4], drawn A moment tetra-frequency of the signal D = [1.3* cos (V1* n) 1* ⁢ sin (v2* n) 1* sin (v3* n) 1* sin (V4* n)] constructed input signal vector U = A* D of the total input signal of the total input signal covariance matrix [S] = EIG (c) seeking covariance feature vector and the feature value removing and corresponding to the zero eigenvalues ​ ​ characterized vector seeking covariance matrix inverse matrix Applications Music estimate output plotted DOA Figure)