Title :
The impact of the number of bits in digital beamforming real aperture and synthetic aperture radiometers
Author :
Bosch-Lluis, X. ; Ramos-Pérez, I. ; Camps, A. ; Marchan-Hernandez, J.F. ; Rodriguez-Álvarez, N. ; Valencia, E. ; Vericat, M. ; Guerrero, M.A.
Author_Institution :
Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya, Barcelona
Abstract :
This work analyzes the number of bits required in a digital radiometer with beamforming focusing on the integration time and on the relationship between the signalpsilas standard deviation and the ADC conversion window. Results are obtained from a particular topology (PAU-SEOSAT/INGENIO [1]), but can be applied to any digital radiometer and to future synthetic aperture radiometers missions.
Keywords :
analogue-digital conversion; geophysical signal processing; geophysical techniques; radiometry; ADC conversion; beamforming focusing; digital beamforming; synthetic aperture radiometers; Antenna arrays; Array signal processing; Calibration; Instruments; L-band; Ocean temperature; Polarization; Radiometers; Sea measurements; Topology; Digital; beamforming; bits; radiometer;
Conference_Titel :
Microwave Radiometry and Remote Sensing of the Environment, 2008. MICRORAD 2008
Conference_Location :
Firenze
Print_ISBN :
978-1-4244-1986-9
Electronic_ISBN :
978-1-4244-1987-6
DOI :
10.1109/MICRAD.2008.4579476
