Title :
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
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;
Conference_Titel :
Southeastcon, 2013 Proceedings of IEEE
Conference_Location :
Jacksonville, FL
Print_ISBN :
978-1-4799-0052-7
DOI :
10.1109/SECON.2013.6567504
