Super-resolution image reconstruction-based synthetic aperture sonar imaging method

The invention discloses a super-resolution image reconstruction-based synthetic aperture sonar imaging method, which comprises: expanding aperture according to an original sonar aperture array; dividing the expanded aperture into sub apertures; estimating the round trip time of detecting acoustic wa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NING GENGXIN, WEI GANG, ZHANG JUN, CHENG HAOXUE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	The invention discloses a super-resolution image reconstruction-based synthetic aperture sonar imaging method, which comprises: expanding aperture according to an original sonar aperture array; dividing the expanded aperture into sub apertures; estimating the round trip time of detecting acoustic waves; orthogonally encoding transmission acoustic waves and detecting a target water area; and imaging the target water area with a super resolution. In the invention, a high-resolution sonar image is obtained by combining super-resolution image reconstruction technology and SAS processing technology. Compared with synthetic aperture sonar before expansion, the expanded synthetic aperture sonar has improved resolution in terms of direction and distance; and compared with the conventional synthetic aperture sonar technology of the same aperture, the expanded synthetic aperture sonar has improved resolution in terms of direction and distance.