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陈启中《linear system theory and design》线性系统经典书籍(Chen Qi <linear system theory and design> classic books of linear systems )

二维正演程序，matlab，有限差分，地震波，希望对初学者有用(Two dimensional forward modeling program, MATLAB, finite difference, seismic wave, I hope useful for beginners)

This program grabs the "glass brain" Maximum Intensity Projection (MIP) from an SPM99 results plot, makes the voxels orange-ish instead of gray, and offers the option of saving the separate brain images into EPS files, which are good for distilling into PDFs or for loading directly into Adobe Illustrator. By the way, the EPS files are large (around 192K), but they shrink into nice compact 8K PDF files.

四进制PSK信号的产生，方便大家进行相应信号的的调制实验。(Quaternary PSK signal, facilitate everybody carries on the corresponding signal modulation experiment. )

说明：  神经网络处理图像的相关样本训练方法使用时可以更快的找到训练样本特征(Associated image processing neural network training method uses the sample can be found faster training sample characteristics)

说明：  使用matlab程序实现了由随机序列到码元电平、m序列直接扩频解扩、qpsk调制解调，射频调制解调一个完整的qpsk系统过程(Matlab program to use by the random sequence to the symbol level, m direct sequence spread spectrum despreading, qpsk modulation and demodulation, RF modulation and demodulation of the QPSK system, a complete process)

matlabb标准粒子群优化算法。 电力系统的分析和计算中，需要不同网络结构和参数。在应 用这些参数之前，收集和整理工作会花费大量的时间和精力。(matlabb standard particle swarm optimization. Power system analysis and calculation, require different network structures and parameters. Before applying these parameters, the collection and collation will spend a lot of time and effort.)

APF model matlab simulink model

一个可以直接应用于扩频系统的m序列仿真，m序列具有很好的自相关性，是在扩频系统中应用最广的伪随机码，本程序可以直接在matlab上运行，对于扩频系统的学习有很大帮助。(Can be directly applied to a m-sequence spread spectrum system simulation, m sequences with good autocorrelation in the spread spectrum system, the most widely used pseudo-random code, the program can be run directly in matlab for Spread Spectrum Systems of great help in learning.)

这是一个pca提取特征的小程序，是应用matlab语言进行编写的，适用于初学者。(This is a small programs characteristics extracted pca this is a small characteristics extracted pca program, application of matlab language is written, it is suitable for beginners. )