摘要
针对导弹导引仿真对微波暗室的性能要求,用几何光学法和能量积分法建立了微波暗室性能的评价模型。从几何光学原理出发,分析了电磁波在尖劈形吸波材料中的反射情况,得出尖劈顶角与反射率、反射次数之间的关系。给出静区能量的积分计算方法。简化了Maxwell求解问题的复杂度,提高了工程计算效率。计算结果比传统方法更具有工程应用价值。
A microwave anechoic chamber performance evaluation model was established for the requirement of anechoic chamber perform- ance for missile guidance simulation. The model was established by geometrical optics and energy integral. Electromagnetic wave promulga- ting in pyramid absorber was analyzed from the principle of geometrical optics. The relation among absorber＇s apical angle and refracting rate, reflection frequency was educed. A method of blind zone energy integral calculation was presented. It simplifies Maxwell＇s equation and improves the efficiency of engineering computing. The result is more valuable than traditional methods.
出处
《弹箭与制导学报》
CSCD
北大核心
2012年第4期211-214,218,共5页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
国防重点预研基金
江苏省资源环境信息工程重点实验室基金(JS201104)资助
关键词
吸波材料
反射路径
微波暗室
静区性能
功率比
absorbing material
reflection path
anechoic chamber
blind zone performance
ratio of power
