Title :
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
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;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6050159
