NSSC OpenIR
WETLAND MONITORING WITH GNSS-R/IR: THEORETICAL SIMULATIONS WITH FIRST-ORDER RADIATIVE TRANSFER EQUATION MODEL
Alternative TitleWOS:000519270606113
Wu, Xuerui1,2,3; Xia, Junming4; Jin, Shuanggen1,2,3; Bai, Weihua4; Liu, Jiandong1,2,3
Source Publication2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019)
2019
Pages6875-6878
Language英语
ISSN2153-6996
ISBN978-1-5386-9154-0
AbstractGNSS-R (Global Navigation Satellite System-Reflectomery) has emerged as a new and promising remote sensing techniques. In the recent two years, several airborne experimental campaigns have been carried out to demonstrate the possibility of wetland monitoring by GNSS-R. However, to our knowledge, there are no theoretical models for this new application. As for GNSS-R, whose working mode is an essential bistatic radar, the received power is DDM (Delay Doppler Map). A wetland GNSS-reflections simulator is presented. This model is based on the integral bistatic radar equation by taking into consideration the wetland, system impulse responses and geometry observation system. The wetland parameters affect the DDM waveforms through the BRCS (bistatic radar cross sections), which is a function of soil (surface roughness, soil moisture, soil freeze/thaw state) and vegetation parameters (vegetation moisture, biomass and growth). The simulator contains the inundated wetlands including two kinds of Aspen, whose effects on the final GNSS reflected power (DDM) can be predicted by the simulator. The developed simulator can assist as mechanism tools for wetland monitoring with GNSS-R technique, and this model can provide theoretical backup for wetland mapping, data analysis and experiment design.
KeywordGNSS-Reflectometry radiative transfer equation model wetland simulator SCATTERING
Conference NameIEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 28-AUG 02, 2019
Conference PlaceYokohama, JAPAN
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7787
Collection中国科学院国家空间科学中心
Affiliation1.Chifeng Univ, Inner Mongolia 024000, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
3.Key Lab Space Nav & Posit Technol, Shanghai 200030, Peoples R China
4.Chinese Acad Sci, Key Lab Planetary Sci, Shanghai 200030, Peoples R China
5.Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wu, Xuerui,Xia, Junming,Jin, Shuanggen,et al. WETLAND MONITORING WITH GNSS-R/IR: THEORETICAL SIMULATIONS WITH FIRST-ORDER RADIATIVE TRANSFER EQUATION MODEL[C],2019:6875-6878.
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