School;
of;
Materials;
and;
Metallurgy,;
Northeastem;
University,;
Shenyang;
110819,;
China;
Department;
of;
Mechanical;
and;
Aerospace;
Engineering,;
Florida;
Institute;
of;
Technology,;
Melbourne;
32901,;
USA;
双向反射分布函数; 随机粗糙表面; 双向反射模型; 微观; 时域有限差分法; FDTD模拟; 表面粗糙度; 概率密度函数;