Detection and analysis of C-Band radio frequency interference in AMSR2 data over landDetection and analysis of C-Band radio frequency interference in AMSR2 data over land
Peer-Reviewed Journal Publication
Δημοσίευση σε Περιοδικό με Κριτές
2020-06-152019enA simplified generalized radio frequency interference (RFI) detection method and principal component analysis (PCA) method are utilized to detect and attribute the sources of C-band RFI in AMSR2 L1 brightness temperature data over land during 1-16 July 2017. The results show that the consistency between the two methods provides confidence that RFI may be reliably detected using either of the methods, and the only difference is that the scope of the RFI-contaminated area identified by the former algorithm is larger in some areas than that using the latter method. Strong RFI signals at 6.925 GHz are mainly distributed in the United States, Japan, India, Brazil, and some parts of Europe; meanwhile, RFI signals at 7.3 GHz are mainly distributed in Latin America, Asia, Southern Europe, and Africa. However, no obvious 7.3 GHz RFI appears in the United States or India, indicating that the 7.3 GHz channels mitigate the effects of the C-band RFI in these regions. The RFI signals whose position does not vary with the Earth azimuth of the observations generally come from stable, continuous sources of active ground-based microwave radiation, while the RFI signals which are observed only in some directions on a kind of scanning orbit (ascending/descending) mostly arise from reflected geostationary satellite signals.http://creativecommons.org/licenses/by/4.0/Remote Sensing1110Wu_et_al_Remote Sens._11(10)_2019.pdfChania [Greece]Library of TUC2020-06-12application/pdf5.9 MBfree
Wu Ying
Qian Bo
Bao Yansong
Li Meixin
Petropoulos Georgios
Πετροπουλος Γεωργιος
Liu Xulin
Li Lin
MDPI
AMSR2
C-band
Generalized RFI detection method
Principal component analysis (PCA) method
Radio frequency interference (RFI)