Title:
|
Common mathematical framework for real and synthetic aperture by interferometry radiometers
|
Author:
|
Bosch Lluís, Xavier; Ramos Pérez, Isaac; Camps Carmona, Adriano José; Rodríguez Álvarez, Nereida; Valencia Domènech, Enric; Hyuk, Park
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
Abstract:
|
This work focuses on the relationship between real
and synthetic aperture radiometers giving a general and common
mathematical framework for both of them. It will be demonstrated
that a real aperture radiometer array can be understood as a
synthetic aperture one, with a high level of redundancy. Therefore,
all the recent results from synthetic aperture radiometry can be
translated to real aperture radiometer arrays. This fact can be
used to create beamforming arrays in a new way. To do this, the
beamforming array equation will be written in terms of crosscorrelations
between all pair of antenna signals (visibility samples).
By properly combining the visibility samples, a new type of
digital beamforming radiometer can be implemented, which will
benefit from the high calibration accuracy achieved in synthetic
aperture radiometers (e.g., The Y-shapedMIRAS radiometer used
in the Soil Moisture and Ocean Salinity mission of the European
Space Agency) and the flexibility to electronically steer the
beam. |
Abstract:
|
Peer Reviewed |
Subject(s):
|
-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció -Remote sensing -Radiation--Measurement -Aperture synthesis -Beamformer -Correlation -Radiometer -Visibility -Teledetecció -Radiació -- Mesurament |
Rights:
|
|
Document type:
|
Article - Published version Article |
Published by:
|
Institute of Electrical and Electronics Engineers (IEEE)
|
Share:
|
|