摘要
在计算海面的后向散射系数时,本文假设海面粗糙度为双尺度模型。在入射角θ大于或等于60°时,提出大尺度斜率的概率密度函数为韦伯尔分布以代替通常所用的高斯分布。在入射角θ大于80°时,利用计算机拟合对后向散射系数进行修正。同时,在毫米波段作了有关探讨。理论计算结果与实验值吻合较好。
A model of double-scale fluctuation for calculating backscatter coefficient of sea surface is assumed in this paper.When the angle of incidence θ is greater than 60° or is equal to 60°,a Weibull distribution instead of Gauss distribution can be prop- osed as the probability density function of the slope of large-scale waves.In addition to modification of the backscatter coefficient by using computer simulation as θ being greater than 80°,the backscatter coefficient for mm-band is calculated.The result obtained is in good agreement with that by measurment.
出处
《电波科学学报》
EI
CSCD
1992年第3期21-28,共8页
Chinese Journal of Radio Science
