Entropy-Based Clutter Rejection for Intrawall Diagnostics
The intrawall diagnostic problem of detecting localized inhomogeneities possibly present within the wall is addressed. As well known, clutter arising from masonry structure can impair detection of embedded scatterers due to high amplitude reflections that wall front face introduces. Moreover, inter...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Geophysics |
| Online Access: | http://dx.doi.org/10.1155/2012/418084 |
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| _version_ | 1832552835451977728 |
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| author | Raffaele Solimene Antonietta D'Alterio |
| author_facet | Raffaele Solimene Antonietta D'Alterio |
| author_sort | Raffaele Solimene |
| collection | DOAJ |
| description | The intrawall diagnostic problem of detecting localized inhomogeneities possibly present within the wall is addressed. As well known, clutter arising from masonry structure can impair detection of embedded scatterers due to high amplitude reflections that wall front face introduces. Moreover, internal multiple reflections also can make it difficult ground penetrating radar images (radargramms) interpretation. To counteract these drawbacks, a clutter rejection method, properly tailored on the wall features, is mandatory. To this end, here we employ a windowing strategy based on entropy measures of temporal traces “similarity.” Accordingly, instants of time for which radargramms exhibit entropy values greater than a prescribed threshold are “silenced.” Numerical results are presented in order to show the effectiveness of the entropy-based clutter rejection algorithm. Moreover, a comparison with the standard average trace subtraction is also included. |
| format | Article |
| id | doaj-art-3009fd000d3241b79f8734cfb61634d9 |
| institution | Kabale University |
| issn | 1687-885X 1687-8868 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Geophysics |
| spelling | doaj-art-3009fd000d3241b79f8734cfb61634d92025-02-03T05:57:42ZengWileyInternational Journal of Geophysics1687-885X1687-88682012-01-01201210.1155/2012/418084418084Entropy-Based Clutter Rejection for Intrawall DiagnosticsRaffaele Solimene0Antonietta D'Alterio1Dipartimento di Ingegneria dell’Informazione, Seconda Università degli Studi di Napoli, 81031 Aversa, ItalyDipartimento di Ingegneria dell’Informazione, Seconda Università degli Studi di Napoli, 81031 Aversa, ItalyThe intrawall diagnostic problem of detecting localized inhomogeneities possibly present within the wall is addressed. As well known, clutter arising from masonry structure can impair detection of embedded scatterers due to high amplitude reflections that wall front face introduces. Moreover, internal multiple reflections also can make it difficult ground penetrating radar images (radargramms) interpretation. To counteract these drawbacks, a clutter rejection method, properly tailored on the wall features, is mandatory. To this end, here we employ a windowing strategy based on entropy measures of temporal traces “similarity.” Accordingly, instants of time for which radargramms exhibit entropy values greater than a prescribed threshold are “silenced.” Numerical results are presented in order to show the effectiveness of the entropy-based clutter rejection algorithm. Moreover, a comparison with the standard average trace subtraction is also included.http://dx.doi.org/10.1155/2012/418084 |
| spellingShingle | Raffaele Solimene Antonietta D'Alterio Entropy-Based Clutter Rejection for Intrawall Diagnostics International Journal of Geophysics |
| title | Entropy-Based Clutter Rejection for Intrawall Diagnostics |
| title_full | Entropy-Based Clutter Rejection for Intrawall Diagnostics |
| title_fullStr | Entropy-Based Clutter Rejection for Intrawall Diagnostics |
| title_full_unstemmed | Entropy-Based Clutter Rejection for Intrawall Diagnostics |
| title_short | Entropy-Based Clutter Rejection for Intrawall Diagnostics |
| title_sort | entropy based clutter rejection for intrawall diagnostics |
| url | http://dx.doi.org/10.1155/2012/418084 |
| work_keys_str_mv | AT raffaelesolimene entropybasedclutterrejectionforintrawalldiagnostics AT antoniettadalterio entropybasedclutterrejectionforintrawalldiagnostics |