中文说明：处理信号的时频分析，有CDF三角函数曲线/三维曲线图，相控阵天线的方向图（切比雪夫加权），三相光伏逆变并网的仿真，信号维数的估计，PLS部分最小二乘工具箱。
English Description：
Signal processing of time-frequency analysis, CDF trigonometric curves / 3D graph, phased array antenna directional diagram (Chebyshev weighted), three-phase grid connected photovoltaic inverter simulation, dimension of signal estimation, pls pls toolbox.