reactive-power-pricing-ppt

基于互信息的图像配准程序。用matlab编写的。有助于理解互信息。(based on mutual information of image registration procedures. Prepared using Matlab. Contribute to the mutual understanding of the information.)

MATLAB的工具箱...样条插值... (MATLAB_signal_TOOLBOX)

windows控制台程序，以命令行输出日历，周未日期加色显示(windows console application to the command line output calendar date weekend plus-color display)

模拟连杆运动时可以利用几个知识来确定特征点的位置，本代码是用MATLAB模拟双摆的运动(When the analog link motion can use knowledge of geometry to determine the location of feature points, this code is the use of MATLAB simulation of the mechanical motion of the double pendulum motion)

使用WCVaR作为风险测度，进行投资组合优化，选择最优组合(Use WCVaR as a risk measure, the portfolio optimization, choose the best combination)

qpsk调制解调simulink文件，亲测可用(qpsk modem simulink file)

face recognition code using lbp ltp features

BP神经网络容易陷于局部极小值，PSO算法在无约束非线性函数优化方面性能优越，通常可以直接找寻到全局最优解，即使不能搜多到全局最优解，也距离全局最优点不远。当然，基本PSO算法陷入局部极值也是有的。对于这个缺点目前还没有找到比较有效、省市的解决方案。本案例实现利用PSO算法和BP算法共同训练神经网络，先将网络进行PSO算法训练，然后BP算法接着进行小范围精细搜索，PSO算法训练神经网络的本质就是将输出误差函数（即能量函数）看成目标函数，PSO对能量函数进行全局寻找最小值。(BP neural networks are prone to local minimum values. The PS algorithm has superior performance in the optimization of unconstrained nonlinear functions. It can usually find the global optimal solution directly. Even if it can not find more global optimal solutions, it is not far from the global best. Of course, there is also a local extreme of the basic PO algorithm. For this shortcoming, there is no more effective, provincial and municipal solution. This case realizes the use of the SO algorithm and the BP algorithm to train the neural network. First, the network is trained in the SO algorithm, and then the BP algorithm is followed by a small range of fine searches. The essence of the PO algorithm training neural network is to regard the output error function(ie, the energy function) as the objective function, and the PO seeks a global minimum value for the energy function.)

说明：  实现信号的frft变换,傅立叶变换是将观看角度从时域转变到频域，分数阶傅立叶变换就是以观看时频面的角度去旋转时频面的坐标轴，然后再从观察频域的角度去分析信息。(The FRFT transform of signal is realized)

伪随机信号发生器，可生成PN63,PN511序列 ,调试通过，可直接使用，也可以稍微修改用在其他伪随机序列生成(Pseudo-random signal generator, can generate PN63, PN511 sequence, through debugging, can be used directly, or you can use a little change in other pseudo-random sequence generation)