q12

dct ofdm reduces ber so widely used

对二维和三维数据可视化,图像处理,动画制作等高层次的绘图命令,也包括可以修改图形及编制完整图形界面的,低层次的绘图命令(Of two-dimensional and three-dimensional data visualization, image processing, high-level animation of graphics commands, but also can modify the graphics and the preparation of a full graphical interface, and low-level graphics command)

pmsm矢量控制，有传感器，小功率电机，指标基本没问题(Vector control in pmsm)

求lorenz系统分岔图，求局部最大值函数(Seeking lorenz system bifurcation diagram, find a local maximum function)

说明：  一篇很好的matlab的PDEtool工具箱使用文献.感兴趣的可以看看.(A good use of matlab toolbox of PDEtool literature. Interested can look at.)

particle swarm optimization

能对两个信号进行相关性分析，在进行分析时，注意不同的方法可能意义不太一样(Correlation analysis can be performed on the two signals)

利用基于粒子群算法的灰色模型对航空发电机进行状态趋势分析技术研究，所得到的分析结果平均相对误差为3.99 。此模型为粒子群优化算法对GM(1,1)模型的改进模型，因此称为基于粒子群优化算法的GM(1,1)模型。(Using aviation turbine gray model based on particle swarm optimization state trend analysis technology research, analysis the average relative error is 3.99 . This model for particle swarm optimization algorithm improved model GM (1,1) model, the so called GM (1,1) model based on particle swarm optimization algorithm.)

shunt active filter

median filter in the matlab software