matlab-file-operations

this code describes image encryption process of color image using Matlab

three phase harmonics pll

三位梁单元的坐标转换，从单元的局部坐标转换为结构整体坐标(Three coordinate conversion beam element)

说明：  单相光伏并网系统，逆变器采用dq下的PI控制。包含SIMULINK 2012-2018所有版本(For single-phase photovoltaic grid connected system, PI control under DQ is adopted for inverter. Include all versions of Simulink 2012-2018)

ethernet code usiing matlb needs communication block set

基于MATLAB软件的三相不对称故障的分析，需了解节点阻抗矩阵以及节点导纳矩阵。(Based on MATLAB software in the three-phase asymmetric fault analysis, need to know the node impedance matrix and node admittance matrix.)

record, save, append & play files of audio

Cross-correlation of several signals

ISODD Determines which elements of an array are odd numbers

FDFD = FD in space of Maxwell’s equations in phasor form Useful for: ∙ Simulations of dispersive media ∙ Eigenmode analysis ∙ Simulations of resonators with high Q