摘要
在研究大型复杂器件的电磁兼容问题时 ,射线寻迹是关键。结合费马原理推导出了光在柱面和锥面上反射点的解析公式 ,同时给出了应用该公式计算的圆柱和圆锥的远场方向图及部分反射点。结果表明 :该公式是正确的 ,并且在复杂环境中大大缩短了寻迹时间 ,提高了寻迹精度。
Ray tracing is a key to electromagnetic compatibility study of large and complicated system. By use of the Fermat principle, this paper deduces analytical formulas for reflection points of optical ray on cylinder and cone and gives far directional patterns and some reflection points of cylinder and cone based on the formulas. Numerical results show that the formulas are correct, and at the same time, the ray tracing time is saved, its accuracy is improved in complicated environment.
出处
《电波科学学报》
EI
CSCD
2004年第2期153-156,共4页
Chinese Journal of Radio Science
基金
自然科学基金资助项目 (编号 :6 99310 30 )
关键词
费马原理
反射点
解析表示式
电磁兼容
射线寻迹
Calculations
Cones
Cylinders (shapes)
Directional patterns (antenna)
Electromagnetic wave reflection
Numerical methods
Ray tracing
