viterbi_decoder

ecg dection component P QRST wave.

这里是matlab的图像处理及其他重要处理的思路及算法过程，十分有用(Here is the matlab image processing and other important process of dealing with the ideas and algorithms are useful)

经典的灰度共生矩阵纹理计算方法，基于matlab平台实现(The classic method of calculating GLCM texture, based on matlab platform)

数学实验中用matlab完成的句柄图形和图形用户界面制作(Mathematics experiment with matlab finish the handle to the graphics and the graphical user interface production)

超声回波声场数据处理显示（matlab 源程序）(ultrasound )

radar systemview源码，我花钱买的，很难找的哦。(the the radar systemview source I spend money on hard to find, oh.)

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：  适用Otsu方法做阈值分析。阈值决策的依据是最大类间方差，这种方法的依据就是类间方差，本程序仅仅适用与二分类问题。(thresholding algorithm using Otsu)

matlab 简单程序应用 非线性方程二分法解答方法(simple nonlinear equations matlab program to answer the dichotomy method)

单向晶闸管整流电路仿真模型，可参见电力电子教材(Unidirectional thyristor rectifier circuit simulation model can be found in power electronics textbooks)