PSO

做的关于弹性波的数值模拟应用的PML边界对于初步研究地震波传播理论的人有很好的指导意义(sdfgweryytgw4e6tuwsdfg)

说明：  LTE系统中QPSK软信息解调,Turbo编码matlab仿真程序，(soft QPSK demodulation in LTE )

一些有关fft 的东西，与大家共同欣赏。谢谢，大家的指正。(something about fft)

雷达采用匹配滤波完成脉冲压缩，采集频率fs=420MHz,仿真雷达回波，并绘出加Hamming窗前后的脉压波形。目标如图所示由(-5，-2)，(0，5)和(6,-7)三个散射点组成,散射强度分别为（1，2，5）,雷达位于（-5000,0）处(The completion of the radar pulse compression using matched filtering, collecting the frequency fs = 420MHz, simulation of the radar echo, and draw the Hamming window plus post-pulse pressure waveform. Targets as shown by (-5,-2), (0,5) and (6,-7) three scattering dots, scattering intensity, respectively (1,2,5), radar at (-5,000, 0), Office of)

霍夫曼编码6进去N输入的MATLAB程序代码，直接可用。(Huffman 6 N input into the MATLAB code directly available.)

数据拟合程序，可实现数据的三阶自定义函数的最小二乘拟合(Data fitting procedure, enabling third-order data, least squares fitting custom functions)

该程序可以画出三维的运动轨迹，可以看到轨迹的前视图，还可以对轨迹进行旋转等(The program can draw three-dimensional trajectory, you can see the front view of the track, the track can also be rotated, etc.)

直接序列扩频仿真实例，产生m序列，然后进行扩频通信，对初学者很有用啊(Direct Sequence Spread Spectrum simulation example, useful for beginners )

说明：  卫星天线升线,保证能看外国台,是我用了三个月的时间编写而成,是我们学习卫星天线设计的理想程序(Satellite antenna booster line, guaranteed to see a foreign station, I spent three months been prepared by the satellite antenna design is the ideal learning program)

This is a text book in Digital communication which is very good in understaing