| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
A Measurement Quality Factor for Swath Bathymetry Sounders
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| Autores: |
Lurton, Xavier
Augustin, Jean-marie
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| Data: |
2010-10
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| Ano: |
2010
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| Palavras-chave: |
Bathymetry
Interferometry
Multibeam echosounder (MBES)
Sonar
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| Resumo: |
The quality estimation associated with individual soundings measured and computed by swath bathymetry sonars is a paramount issue which is most often imperfectly addressed today by sonar manufacturers. In this paper, a unified definition is proposed for a quality factor usable for all swath bathymetry sonars; the depth-relative error is directly estimated from the signal characteristics used in the sounding computation. The basic algorithms are presented for both phase-difference (oblique incidence) and amplitude (normal incidence) detection, and can be readily implemented in any swath bathymetry system using these detection principles. This approach gives a direct access to the objective bathymetric performance of individual soundings, and hence avoids the explicit estimation of intermediate quantities such as the signal-to-noise ratio (SNR). It makes possible intercomparisons between different systems (multibeam sounders versus interferometric sonars) and processing principles (phase difference versus amplitude); it is expected to provide a useful input to bathymetry postprocessing software using quality estimation of individual soundings.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
DOI:10.1109/JOE.2010.2064391
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| Editor: |
Ieee-inst Electrical Electronics Engineers Inc
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| Relação: |
https://w3.ifremer.fr/archimer/doc/00021/13191/
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| Formato: |
application/pdf
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| Fonte: |
Ieee Journal Of Oceanic Engineering (0364-9059) (Ieee-inst Electrical Electronics Engineers Inc), 2010-10 , Vol. 35 , N. 4 , P. 852-862
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| Direitos: |
2011 IEEE – All Rights Reserved
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