PSO

WSAN，激励节点调度：基于重叠区域的单任务分配算法。(西南交通大学，ZHJSWJTU)(WSAN, incentives node scheduling: single-task allocation algorithm based on the overlapping area.)

采用格子玻尔兹曼方法两相流动模型模拟相分离过程(two phase flow seperation simulation based on Lattice boltzmann method)

无线充放电中的谐振网络仿真设计，有助于了解谐振网络。(The simulation design of resonant network in wireless charge and discharge is helpful to understand resonant network.)

wind turbine simulation

采用turbo编码方式，实现了信号在高斯白噪声信道下的turbo编码(turbo encode)

说明：  对信号进行频域特征提取，先通过傅里叶变换得到信号频谱，再计算频谱特征，包括重心频率，均方频率和频率方差(Firstly, the frequency spectrum of the signal is obtained by Fourier transform, and then the spectrum characteristics, including center of gravity frequency, mean square frequency and frequency variance, are calculated.)

射频滤波器 利用综合优化后产生的耦合矩阵 生成在hfss中自动建模的脚本文件 (The coupling matrix is produced using the optimized integrated RF filters are generated in the HFSS script file automatically modeling)

法国中央科学研究院和美国RICE大学共同开发了时频分析工具箱（matlab emd） 是一款非常好用的时频分析计算工具，它是分析时变非平稳信号的有力工具，matlab 时频分析工具箱提供了时间域与频率域的联合分布信息，清楚地描述了信号频率随时间变化的关系。 其中主要含有四种函数： 信号产生函数，可以产生不停类型的信号，如Chirp信号，bpsk信号等。 时频分析函数，可以计算线性、Cohen类、仿射类非线性分析值函数，例如短时傅里叶变换（STFT），Gabor变换，谱图，Wigner-Ville（WVD）等。 分析处理函数 图形显示函数，如等高线、三维图等。(Time-frequency analysis toolbox)

这里面有两个程序，两个都是采用4QAM调制。不过个人觉得第一个更容易懂，因为写的很有条理。我改的那个程序就是根据这个来的。 不过在这里面有个问题就是信道系数只能是由高到低，大家可以试试，改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数，这个成为归一化信道，就是系数平方和为1. 第二个程序没有涉及到信道系数，但是这个程序当中，在128个子载波中，前后有32个空载波，这个在OFDM中也是经常用的，这样可以降低误码率。 (And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)

Hi...here is several matlab code inaudio pprocessing