物理与工程Vol.33No.42023光栅衍射与相控阵雷达结合的教学案例探索崔慧娟1陈曦2(1北京建筑大学理学院,北京100044;2中科院物理研究所,北京100190)摘要光栅衍射是光学教学中重要的章节,是对多缝干涉和单缝衍射的综合运用。但是教学过程中会出现教学过程枯燥、教学内容晦涩难懂等问题,这极大地影响了教学效果。本文基于光栅衍射的基本公式,以实际工程应用相控阵雷达为案例,融入课程思政,同时结合Matlab仿真,具体形象地展示了光栅常数、缝宽、衍射角对衍射光谱的影响,以及相控阵雷达的基本原理与以上各因素的联系,在学习知识的同时让学生掌握了相控阵雷达的基本原理。本次教学探索对于光栅衍射教学知识点的教学、思政、实际问题的解决都具有重要的意义。关键词光栅衍射;Matlab仿真;相控阵雷达EXPLORATIONOFTEACHINGCASESONTHECOMBINATIONOFGRATINGDIFFRACTIONANDPHASEDARRAYRADARCUIHuijuan1CHENXi2(1CollegeofScience,BeijingUniversityofCivilEngineeringandArchitecture;2InstituteofPhysicsChineseAcademyofSciences)AbstractGratingdiffractionisanimportantchapterinopticalteaching,whichisthecompre-hensiveapplicationofmultislitinterferenceandsingleslitdiffraction.Butintheteachingprocess,thestudentsfeelboringandhardtounderstand,whichgreatlyaffecttheteachingeffect.Thispaper,basedonthebasicformulaofgratingdiffraction,takesthepracticalengi-neeringapplicationofphasedarrayradarasanexample,integratestheideologicalandpoliticaleducationofthecourse.Atthesametime,wecombinesMatlabsimulationtoconcretelyandvividlyshowtheinfluenceofgratingconstant,slitwidth,anddiffractionangleonthediffrac-tionspectrum,whichintuitivelyshowtheinfluenceoftheabovefactorsonthephasedarrayradar,andthestudentsbothstudythegratingdiffractionandthephasedarrayradar.Thisteachingexplorationisofgreatsignificancetotheteachingofgratingdiffractionteachingknowledgepoints,ideologicalandpoliticaleducation,andthesolutionofpracticalproblems.Keywordsgratingdiffraction;Matlabsimulation;phasedarrayradar收稿日期:2022-11-15;修回日期:2023-05-23基金项目:北京市教委科研计划项目资助(KM202010016008);北京建筑大学教研项目(重点)资助(Y2114);北京建筑大学“双塔计划”优秀主讲教师支持计划资助(YXZJ20220809);北京建筑...
