Studies of radio frequency interference in SMOS observations

Author

Johnson, Joel T. ; Aksoy, Mustafa

Author_Institution

Dept. Of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA

fYear

2011

fDate

24-29 July 2011

Firstpage

4210

Lastpage

4212

Abstract

ESA´s SMOS mission has been providing L-band brightness temperature observations of the Earth since launch in Nov. 2009. Radio frequency interference (RFI) is clearly present in SMOS data, and RFI detection and mitigation remains a challenging problem. The interferometric nature of SMOS observations also causes some RFI artifacts in SMOS measurements that do not reflect the actual brightness temperature values. This paper reports on an analysis of SMOS RFI in North America, including a study of RFI artifacts and a method for their removal. Properties of the remaining RFI sources are then examined after artifact removal.

Keywords

geophysical signal processing; hydrological techniques; oceanographic techniques; radiofrequency interference; remote sensing; signal denoising; ESA SMOS mission; L-band brightness temperature observations; North America; RFI detection; RFI mitigation; SMOS RFI analysis; SMOS data; SMOS interferometry; SMOS observations; radiofrequency interference; Brightness temperature; Earth; Microwave radiometry; North America; Radiofrequency interference; Sea measurements; Temperature measurement; Microwave Radiometry; RFI; SMOS;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International

Conference_Location

Vancouver, BC

ISSN

2153-6996

Print_ISBN

978-1-4577-1003-2

Type

conf

DOI

10.1109/IGARSS.2011.6050159

Filename

6050159