基于Matlab的光学信息安全教学实践

摘要

根据光学信息安全课程的特点,提出了可视化的探究性教学方法,并以双随机相位编码光学加密系统为例,给出了Matlab软件在加密系统仿真、加密系统结果分析以及对系统进行探究性学习中的应用实例.实践证明:Matlab仿真既可以虚拟精密而复杂的光学系统,又可以对理论分析的结果进行深入的数值分析并直观地展示.同时,Matlab强大的功能使得学生可以方便地对各种猜想进行验证,从而激发其研究的兴趣,极大地提高了教学效果.%Based on the characteristics of the course of optics security,the visual inquiry teaching approach was put forward.Taken the double random phase encoding system as an example,the application of Matlab in simulation and investigation of optical encryption systems was introduced.Practice proves that Matlab not only precisely simulates the virtual optical system,but also easily verifies various assumptions.As a result,students' interest is motivated and the teaching effect is greatly raised.