摘要
本文试图从统计的角度出发阐述植被后向散射功率谱。在假设回波来自分辨单元的各个独立散射体之后得出了功率谱的一般表达式,然后对植被的运动作了统计平均之后便得出回波的功率谱与雷达系统参数和植被参数的关系。所得结果与前人结果及实验吻合较好。
A model is derived about radar backscattering power spectra from vegetationin the view of statistics and a general expression is got after we made the postutate that radar echo comes from the independent scatterers in a radar resolution cell.Then some discussions are taken on the mo- tion of vegetationand relationship between theradar power spectra and the parameters of vegeta- tion and radar system.Our theoretical results agree well with what have been existed either in theories or in experiments.
出处
《电波科学学报》
EI
CSCD
1992年第4期35-40,共6页
Chinese Journal of Radio Science
关键词
雷达
杂波
功率谱
植被
radar clutter
power spectra
vegetation
