PET

用“提前停止”方法提高BP网络推广能力 本例将用提前停止和训练函数TRAINGDX相结合来避免“过度拟合”产生的误差 (The " early stopping" method to enhance the promotion of BP network capacity will be used in this case in advance and training function to stop the combination of TRAINGDX to avoid " over-fitting" error)

FIR 底通和带通滤波器和IIR 底通和带通滤波器，计算十字叉丝的在不同距离的衍射图像,采用累计贡献率的方法。( Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Calculation crosshairs diffraction image at different distances, The method of cumulative contribution rat.)

机遇matlab软件信号传输模拟，可以模拟卫星信号传输全过程(jiyu matlab ruanjian xionhao )

Used to obtain the particular position where a maximum or minimum occurs in a matrix

南大赵其昌老师的文章，对于分析薄板振动的初学者有很好的指导作用(Nanda ZHAO Qi-chang teacher' s article, for the analysis of the vibration plate has a very good guide for beginners)

说明：  数字视频技术中用的很多的穷尽快匹配算法 对与很多数来说的话是相当有用的啊(Digital video technology used in many of the poor as soon as possible with a lot of matching algorithms in terms of the number of words is a useful ah)

用matlab编写的关于流体计算和传热的几个程序(Fluid flow calculation and heat transfer program written by MATLAB)

说明：  挠性转子的平衡原理是建立在弹性轴（梁）横向振动理论的基础上，其动平衡原理为：挠性转子在任意转速下回转时所呈现的动挠度曲线，是无穷多阶振型组成的空间曲线，其前三阶振型是主要成分，振幅较大，其他高阶振型成分振幅很小，可以忽略不计。(Flexible rotor balancing principle is based on the elastic axis (beam) on the basis of transverse vibration theory, the balancing principle is: flexible rotor turning at any speed when the deflection curve presented is composed of infinite number of vibration modes space curve, the first three modes is the main component, the larger the amplitude, the amplitude of the other components of higher modes is very small, can be ignored.)

this is matlab code for read dxf file

一个QPSK调制解调的程序，在Matlab环境下实现。(A QPSK modulation and demodulation process in Matlab environment to achieve.)