YICHUANSUANFA-YINGYONGJULI

Optical Fibre Toolbox

说明：  讨论资金积累、国民收入、与人口增长的关系. （1）若国民平均收入x与按人口平均资金积累y成正比，说明仅当总资金积累的相对增长率k大于人口的相对增长率r时，国民平均收入才是增长的. （2）作出k(x)和r(x)的示意图，分析人口激增会引起什么后果. (Discussion of capital accumulation, income, and the relationship between population growth. (1) If the national average income per x and y is proportional to the accumulation of funds that only if the total funds accumulated in relative growth rate k of the relative growth rate than the population r when per capita income is growing. (2) to k (x) and r (x) of the diagram, analysis of population growth will cause the consequences.)

(1>分析低压微电网中逆变器输出阻抗特性，采用了虚拟阻抗的控制方法对逆变器输出阻抗进行构造，又从微电网本身特点考虑，构造逆变器的输出阻抗为阻性，使得Pv/QF的反下垂控制方法可以被合理使用。 (2>对逆变器功率外环进行小信号建模，分析当输出阻抗性质发生变化时系统(1 Analysis of low voltage microgrid inverter output impedance characteristics, the control method of virtual impedance of the structure on the output impedance of the inverter, and the characteristics of micro grid is considered, the output impedance of inverter structure for resistance, the Pv/QF control method of anti sag can be reasonable use. 2 of the inverter power outer loop small signal modeling, analysis the characteristics of output impedance changes the system)

说明：  光学工程类的Matlab模拟程序，一个是透镜的成像原理模拟，一个是平板成像(Optical engineering classes Matlab simulation program, one lens of the imaging principle simulation, a flat-panel imaging)

关于一维直流电测深的人机交互反演程序代码(One-dimensional electrical sounding human-computer interaction inversion code)

应用了大量互相关检测算法从而得出了同步性能错检率的大小，比较适合刚学习同步算法的人去研究。(Application of a large cross-correlation detection algorithm to arrive at the synchronization performance of the error detection rate of size, more suitable for people just learning to study synchronization algorithm)

4节点板单元刚度矩阵，用于计算平面板单元刚度矩阵(4-node plate element stiffness matrix is ​ ​ used to calculate the stiffness matrix flat panel unit)

说明：  5G is a project of upcoming technologies in the future

cobweb plot diagrams for matlab

fdtd+matlab one dimensional(fdtd+matlab code)