A Simulation Study of 3D Image Generation Using Fan-Beam Sonars
Sector-scanning sonars are finding increasing use in a number of undersea scenarios. These sonars perform rapid scanning of a given sector by a vertical fan-beam having narrow horizontal beamwidth.1 The range resolution of these sonars is on the order of a few centimetres, with maximum ranges of a few hundred metres depending on the frequency of operation (100 kHz — 2 MHz).2 This paper presents results on 3D reconstruction of objects from their acoustic images. The acoustic images used in this paper are obtained by simulation using a high-resolution imaging sonar model. We also present some results on object classification.
KeywordsLution Acoustics Sonar
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- R.Bahl and J.P.Powers, “Computer Model of a High–resolution Imaging Sonar,” NPS Technical Report NPS62–90–011, Naval Postgraduate School, Monterey, CA, June 1990.Google Scholar