On-orbit signal processing procedure for determining Microwave Radiometer non-linearity

Author

Ghazi, Zoubair ; Biswas, Santosh ; Jones, Lewis ; Hejazin, Yazan ; Jacob, Minu M.

Author_Institution

Dept. of EECS, Univ. of Central Florida, Orlando, FL, USA

fYear

2013

fDate

4-7 April 2013

Firstpage

1

Lastpage

5

Abstract

This paper presents a novel signal processing approach used to diagnose non-linear (gain compression) operation of the MicroWave Radiometer (MWR) flown on the Aquarius/SAC-D satellite. This instrument was commissioned in September 2011, and on-orbit observations of blackbody earth emissions (brightness temperatures) have been evaluated over the past year. Results are presented, which suggest that the radiometer system is slightly non-linear, and the resulting receiver gain is a function of the observed radiometric brightness temperature.

Keywords

atmospheric measuring apparatus; atmospheric radiation; atmospheric techniques; geophysical signal processing; radiometers; remote sensing; AD 2011 09; Aquarius-SAC-D satellite; blackbody earth emissions; microwave radiometer nonlinearity; on-orbit observations; on-orbit signal processing procedure; radiometer system; radiometric brightness temperature; Brightness temperature; Microwave radiometry; Noise; Orbits; Receiving antennas; Aquarius; Dicke microwave radiometer; MWR; receiver non-linearity;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon, 2013 Proceedings of IEEE

Conference_Location

Jacksonville, FL

ISSN

1091-0050

Print_ISBN

978-1-4799-0052-7

Type

conf

DOI

10.1109/SECON.2013.6567504

Filename

6567504