Data/hora: 01/06/2024 10:00:17

Provedor de dados: 	5	
País: 	France	
Título: 	A Measurement Quality Factor for Swath Bathymetry Sounders	
Autores: 	Lurton, Xavier; Augustin, Jean-marie.	
Data: 	2010-10	
Ano: 	2010	
Palavras-chave: 	Bathymetry; Interferometry; Multibeam echosounder (MBES); Sonar.	
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.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	DOI:10.1109/JOE.2010.2064391	
Editor: 	Ieee-inst Electrical Electronics Engineers Inc	
Relação: 	https://w3.ifremer.fr/archimer/doc/00021/13191/	
Formato: 	application/pdf	
Fonte: 	Ieee Journal Of Oceanic Engineering (0364-9059) (Ieee-inst Electrical Electronics Engineers Inc), 2010-10 , Vol. 35 , N. 4 , P. 852-862	
Fonte: 	2011 IEEE – All Rights Reserved