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说明：  通过mie级数计算球体的消光截面，散射截面，吸收截面(Mie series by calculating the extinction cross section sphere, scattering cross section, absorption cross section)

卷积码的仿真，其误码率实验值与理论值比较，调用函数，可以方便在以后的算法应用。(Simulation of a convolutional code, bit error rate value is compared with the theoretical value experiment, the calling function, the algorithm can be easily applied in the future.)

1. 在matlab中分析基于分离变量法的解析解； 2. 利用简单迭代法求解，与解析法结论对比，分析求解结果的精确度。分析过程至少包括：在网格尺寸为0.1 m和1 m两种条件下，两次迭代差值最大为10-10时的分析结论； 3. 利用超松弛迭代法分析，选择松弛因子，分析其对收敛速度（即迭代次数）的影响，并确定最优值。分析过程至少包括：在网格尺寸为0.1和1两种条件下，两次迭代差值最大为10-10时，迭代次数随松弛因子的变化，得到对应的最优松弛因子，与经验值（课本165页式子3.7.15）进行对比。(1. Analyze the analytical solution based on the separation variable method in matlab. 2. Using a simple iterative method to solve, compared with the results of the analytical method to analyze the accuracy of the solution. The analysis process at least includes the following conclusions: when the mesh size is 0.1m and 1m, the maximum difference between two iterations is 10-10. 3. Analyze using the relaxation relaxation iteration method, select the relaxation factor, analyze its influence on the convergence speed (ie the number of iterations), and determine the optimal value. The analysis process at least includes the following: when the mesh size is 0.1 and 1 and the maximum difference between two iterations is 10-10, the number of iterations varies with the relaxation factor, and the corresponding optimal relaxation factor and empirical value are obtained ( Textbook 165 pages (3.7.15) for comparison.)

使用matlab通信工具箱进行简单的通信仿真(To use matlab communication toolbox to simple communication simulation)

MTI&MTD的matlaB程序实现，并进行实例演示(The MTI & MTD matlaB program and example demonstrates)

gauss插值，matlab经典例程,数学建模必备(gauss interpolation, matlab classic routines, mathematical modeling necessary)

用MATLAB实现对同一声音信号的不同频率的采样速率输出幅度谱和相位谱。(MATLAB to the same acoustic signals of different frequency of the output amplitude spectrum and phase spectrum sampling rate.)

为了提高发动机怠速过程的稳态和动态特性，采用 MATLAB/Simulink 软件对发动机怠速系统进行模拟仿真。(In order to increase the engine idling steady state and dynamic characteristics, using MATLAB/Simulink software engine idling system simulation.)

demodulation bpsk, qpsk, 16qam, 64 qam

同步发电机三相突然短路有阻尼绕组编程仿真，包含励磁短路电流，定子绕组短路电流。(Modeling and Simulation of the damping winding of synchronous generator three phase sudden short circuit, including the excitation current, stator winding short-circuit current.)