Initial Results of a Digital Radiometer with Digital Beamforming

Author

Bosch-Lluis, X. ; Ramos-Perez, I. ; Camps, A. ; Marchan-Hernandez, J.F. ; Rodríguez-Álvarez, N. ; Valencia, E. ; Guerrero, M.A. ; Nieto, J.M.

Author_Institution

Dept. Teor. del Senyal i Comunicacions, Univ. Politec. de Catalunya, Barcelona

Volume

2

fYear

2008

fDate

7-11 July 2008

Abstract

In ESA´s SMOS mission it is expected to improve the sea surface salinity retrieval using multi-angular information to correct for sea state effects. A multi-beam, digitally steered radiometer with polarization synthesis has been proposed for the first time as a part of the PAU instrument (Passive Advanced Unit for the ocean monitoring project). This paper provides theoretical and experimental results of extending the calibration algorithms of a digital radiometer obtained in to any number of receivers in order to achieve the digital beamforming.

Keywords

ocean chemistry; oceanographic equipment; ESA SMOS mission; PAU instrument; Passive Advanced Unit; calibration algorithms; digital beamforming; multiangular information; multibeam digitally steered radiometer; ocean monitoring project; polarization synthesis; receivers; sea state effects correction; sea surface salinity retrieval; Array signal processing; Calibration; Information retrieval; Instruments; Monitoring; Oceans; Polarization; Radiometry; SMOS mission; Sea surface salinity; calibration; field-programmable gate array (FPGA); pseudo-correlation; radiometer;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International

Conference_Location

Boston, MA

Print_ISBN

978-1-4244-2807-6

Electronic_ISBN

978-1-4244-2808-3

Type

conf

DOI

10.1109/IGARSS.2008.4779034

Filename

4779034