Forest Model for Height Estimation Using POLinSAR Data
The Random Volume over Ground(RVoG)model has been widely applied to polarimetric synthetic aperture radar interferometry(POLinSAR)data for forest height inversion.The model assumes forest as a homogeneous volume of randomly oriented particles characterized by a constant extinction,over an impenetrable ground layer,which doesnt take into account the ground decorrelation.In order to integrate the ground decorrelation,two models taking into consideration the ground decorrelation will be investigated.The first model uses Gaussian function instead of Delta function to describe the response of electromagnetic wave interacting with ground; and the second model considers the ground coherence not equaling one anymore because of the change of the dielectric properties,even the deformation of ground.The influence of the complementary forest models on topography related phase is investigated.Finally we will discuss the method of these two models to invert forest height.
Jiehong Chen Hong Zhang Chao Wang Yixian Tang
Key Laboratory of Digital Earth,Center for Earth Observation and Digital Earth,CAS,Beijing 100094,Ch Key Laboratory of Digital Earth,Center for Earth Observation and Digital Earth,CAS,Beijing 100094,Ch
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
1391-1394
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）