PARAMETER SENSITIVITY ANALYSIS FOR BISTATIC SCATTERING OF ROUGH SURFACE

被引：0
|
作者：
Liu, Yuan [1 ]
Zeng, Jiangyuan [2 ]
Chen, Kun-Shan [2 ]
Li, Zhaoliang [1 ]
机构：
[1] CNRS, UdS, ICube, CS10413, F-67412 Illkirch Graffenstaden, France
[2] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China
来源：
2016 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2016年
关键词：
Sensitivity analysis; Bistatic scattering; Soil moisture; AIEM; SOIL-MOISTURE;
D O I：
10.1109/IGARSS.2016.7730130
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we investigated the bistatic scattering of soil moisture and surface roughness of bare soil surfaces. We generated database by using an advanced integral equation model (AIEM). For better understanding the bistatic scattering characteristics of bare soil surfaces, we adopted single polarized simulations and combination of dual angular simulations. To explore the sensitivity of bistatic scattering to soil moisture, we applied a defined sensitivity index. The results shown that the scattering coefficients of VV polarization are more sensitive to soil moisture compared with the HH polarized scattering coefficients. Moreover, the forward direction is the most sensitive to soil moisture in all cases. Besides, the dual angular observations show good sensitivity to soil moisture, especially when the differences of the two incident angles are large.
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页码：4335 / 4338
页数：4
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