An Alphabet Compressive Sensing (CS) approach is proposed in this paper for the retrieval of arbitrarily-shaped targets when no a-priori information on the class of scatterers at hand is available. The approach is based on the combination of (i) a fast CS retrieval methodology that is employed to invert the field data assuming several different candidate expansion bases (i.e., the alphabet), and (ii) a robust and effective algorithm for the (non-supervised) selection of the best reconstruction among those obtained with the available alphabet. Such a strategy allows to minimize the a-priori information necessary to obtain sparse representations of the unknown targets A preliminary numerical experiment is reported to validate the proposed methodology.
Alphabet CS for inverse scattering / Anselmi, Nicola; Poli, Lorenzo; Randazzo, Andrea; Oliveri, Giacomo. - STAMPA. - (2016), pp. 141-143. ((Intervento presentato al convegno 2016 URSI International Symposium on Electromagnetic Theory, EMTS 2016 tenutosi a Espoo, Finland nel 14th-18th August 2016 [10.1109/URSI-EMTS.2016.7571335].
Titolo: | Alphabet CS for inverse scattering | |
Autori: | Anselmi, Nicola; Poli, Lorenzo; Randazzo, Andrea; Oliveri, Giacomo | |
Autori Unitn: | ||
Titolo del volume contenente il saggio: | 2016 URSI International Symposium on Electromagnetic Theory (EMTS) | |
Luogo di edizione: | Piscataway, NJ | |
Casa editrice: | Institute of Electrical and Electronics Engineers Inc. | |
Anno di pubblicazione: | 2016 | |
Codice identificativo Scopus: | 2-s2.0-84992104370 | |
Codice identificativo WOS: | WOS:000389770800041 | |
ISBN: | 9781509025022 | |
Handle: | http://hdl.handle.net/11572/168447 | |
Citazione: | Alphabet CS for inverse scattering / Anselmi, Nicola; Poli, Lorenzo; Randazzo, Andrea; Oliveri, Giacomo. - STAMPA. - (2016), pp. 141-143. ((Intervento presentato al convegno 2016 URSI International Symposium on Electromagnetic Theory, EMTS 2016 tenutosi a Espoo, Finland nel 14th-18th August 2016 [10.1109/URSI-EMTS.2016.7571335]. | |
Appare nelle tipologie: | 04.1 Saggio in atti di convegno (Paper in proceedings) |
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