injection_locking

计算不同高度下大气湍流对空间光到单模光纤的耦合效率。(The coupling efficiency of space to single-mode fiber in the atmospheric turbulence is calculated at different heights.)

说明：  一个基于有限元方法的平面问题求解器，支持网格类型为二维四边形四节点单元和四边形八节点单元的有限元网格： 前处理——用Abaqus建模编号并导出数据 在Matlab中读取数据文件 计算单元刚度矩阵（采用高斯积分），组集结构刚度矩阵 组集结点载荷向量，引入位移边条 求解结点位移，单元应力应变 后处理——绘制应力应变位移云图，与Abaqus结果对照(A plane problem solver based on finite element method)

分层的一维热传导方程的有限差分法MATLAB程序，是简单的显式差分格式，尽量使用了矩阵运算，没有符号运算。 文件chafen1.m以路面为例，假设有多层建筑材料，热传导系数已经在代码中给出。用户使用时请按自己需要修改chafen1.m文件，增减层数，修改热传导系数等即可。(One-dimensional heat conduction equation finite difference method MATLAB program, is a simple explicit difference format, as far as possible use of matrix operations, no symbolic operations The file Chafen 1.m takes the road surface as an example, assuming that there are multiple layers of building materials, the thermal conductivity is given in the code. Users should modify the Chafen 1.m file according to their own needs, increase or decrease the number of layers, modify the thermal conductivity and so on.)

说明：  根据地层参数（速度、密度、厚度），设计相应子波，合成地震记录(According to the formation parameters (velocity, density, thickness), the corresponding wavelet is designed to synthesize the seismic record)

说明：  对Rsoft仿真数据进行调用处理，更清晰绘制所得结果(Call and process the Rsoft simulation data, and draw the results more clearly.)

说明：  matlab语言编写，适合图形文章数据提取(Matlab language, suitable for data extraction of graphic articles)

说明：  matlab编程利用hess simth面元法(边界元法)计算球体及椭球体附加质量(Matlab programming uses hess_simth surface element method (boundary element method) to calculate the additional mass of spheres and ellipsoids)

说明：  已知单自由度受迫振动体系的运动方程的解，是由齐次方程的通解与特解组成。其次方程的通解在无阻尼、临界阻尼、低阻尼、超阻尼中各有不同。(It is known that the solution of the motion equation of a single degree of freedom forced vibration system is composed of the general solution and the special solution of the homogeneous equation. Secondly, the general solution of the equation is different in undamped, critical damping, low damping and super damping.)

Atef《MATLAB模拟的计算电磁学时域有限差分发》书后完整的MATLAB程序集合(Complete set of MATLAB programs of "Computational Electromagnetics Simulated by MATLAB Finite-Difference Time-Domain Distribution" by Atef)

说明：  汽车EPS电动助力转向系统通过matlab/simulink编写(Automobile EPS electric power steering system is written by matlab/simulink)