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一章关于matlab图形与图像的资料，对初学者非常有用，有学习的价值。(A chapter on matlab graphics and image information is very useful for beginners, the value of learning.)

自适应梯形求积法 特别适合被积函数为强峰的定积分 此程序修改余地很大(Adaptive trapezoid quadrature method was particularly suited to the plot function for the strong peaks of the definite integral of a large room for this procedure to amend)

MATLAB的部分工具箱函数，对matlab工具箱使用有详细介绍。(The MATLAB toolbox function matlab toolbox detail.)

This function is a simple Matlab code to generate random permutations of natural numbers 1 to N

本程序为m源文件，应用于无线回传的拓扑优化问题，采用的是贪婪算法。(This program is m source file, which is applied to topology optimization of wireless backhaul, and greedy algorithm is adopted.)

This is a GUI based system. The GUI is invoked from the command line by typing "ui_start". The GUI is self explanatory. Tool tips are given in blue color. The cursor needs to be positioned on these for detailed explanation. The main file is "runsim.m". In these simulations the SISO option is not explicitly given. This is because the SISO result for a particular type of modulation is shown in every plot for purposes of comparison. This software has been tested on MATLAB version 6.0 and above with signal processing and communication toolbox options.(This is a GUI based system. The GUI is invoked from the command line by typing " ui_start" . The GUI is self explanatory. Tool tips are given in blue color. The cursor needs to be positioned on these for detailed explanation. The main file is " runsim.m" . In these simulations the SISO option is not explicitly given. This is because the SISO result for a particular type of modulation is shown in every plot for purposes of comparison. This software has been tested on MATLAB version 6.0 and above with signal processing and communication toolbox options.)

遗传算法在求解一元函数极值中的应用，可供新手学习、参考(a genetic algorithm is given to solve a simple function’s extremum problem.)

基于单项耦合映像格子的时空混沌伪随机序列，自相关函数画图(Single coupled map lattice spatiotemporal chaos-based pseudo-random sequence, the autocorrelation function of drawing)

该程序是用matlab语言实现的对瑞利信道的描述，读者可以一试(The program is described by Rayleigh channel matlab language, readers can try)

PCM编码把模拟信号转换为数字编码，在通信电路的目的地，脉冲调制解调器将二进制的数字编码重新转换成那些在调制器中有相同量子水平的脉冲。(PCM encoding to convert analog signals to digital encoding, the destination of the communication circuit, the binary pulse modem re-converted into digital code modulator in which the quantum level of the same pulse.)