TwoDPCA

Source code in matlab of neural network.

一个左手介质的FDTD的分析，采用ADE方法离散(A left-handed medium, the analysis of the FDTD method discrete ADE )

改进bp-ga算法，确定权值和阈值，组合导航系统故障诊断bp-ga算法(Improved algorithm for bp-ga)

实序列FFT快速算法，用N点FFT计算2N点实序列的FFT，比直接进行2N点FFT运算减少一半运算量。(Real sequence FFT fast algorithm, using N-point FFT calculation 2N point real sequence of FFT, than the direct 2N-point FFT computation halved.)

一些非常实用的神经网络实例，是用matlab语言编写，值得学习和借鉴！(Some very practical instance of the neural network, using matlab language worth learning!)

说明：  讲述雷达测距原理，组成元件，性能指标，发展趋势(About radar ranging principle, components, performance index)

Mathematica 的函数大全，在水木清华上被评为精华。里面列举的函数命令大多比较常用。(Collection of functions of Mathematica, SMTH was named in essence. Which lists most commonly used function of command.)

This toolbox was written for my own education and to give me a chance to explore the models a bit. It is NOT intended for any serious applications and it does not NOT do many of things you would want a mature implementation to do, like leaf pruning. If you wish to use a strong implementation I recommend Scikit Learn / Python. For Matlab I do not really have a recommendation.

1. 对LBG算法的理解和使用； 2.Matlab矩阵数据的处理。(Understood that the use of vector quantization for image quantized principle: a number of samples of the sequence are jointly quantified, instead of a similar set of values ​ ​ with a value, to reduce the quantization error master Vector quantizer codebook design, the experimental use LBG algorithm codebook design 3. LBG algorithm to understand and use 4.Matlab matrix data processing.)

求解电力网络机电暂态DAE方程，得到系统随时间变化的状态量轨迹(solve the mechanical/electrical transient DAE function of power system, in order to get the trace of the state parameter when time varies)