Browsing Reprints by Author "Canepa, Gaetano"
Now showing items 1-8 of 8
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A novel approach for a bistatic scattering calculation suitable for sonar performance model
Canepa, Gaetano; Tesei, Alessandra (CMRE, 2014/01)One of the classical approaches to the calculation of the sound pressure scattered from a rough surface is to sum the contributions to the field from a set of small tiles that approximate the surface. If the tiles are ... -
At-sea measurements of acoustic elastic scattering by a 1.5m-long cylinder made of composite materials
Tesei, Alessandra; Zampolli, Mario; Canepa, Gaetano (NURC, 2007/12)Monostatic and bistatic acoustic scattering measurements were performed on solid-filled fibreglass objects (a sphere and a cylinder with hemispherical endcaps) deployed proud on a sandy seabed and insonified by a rail-mounted ... -
Autonomous networked anti-submarine warfare research and development at CMRE
LePage, Kevin D.; Goldhahn, Ryan A.; Alves, João; Strode, Christopher; Braca, Paolo; Ferri, Gabriele; Munafò, Andrea; Oddone, Manlio; Sildam, Jüri; Baralli, Francesco; Biagini, Stefano; Canepa, Gaetano; Colombo, Marco; Grandi, Vittorio; Grenon, Gabriel; Mazzi, Marco; Micheli, Michele; Parisi, Gerardo; Saia, Paolo; Vermeij, Arjan; Zappa, Giovanni (CMRE, 2019/06)CMRE has been evaluating the potential of autonomous networked ASW using underwater vehicles through a program of sonar signal processing, underwater communications, navigation and robotic behavior developments and at-sea ... -
Continuous active sonars for littoral undersea surveillance
Munafò, Andrea; Canepa, Gaetano; LePage, Kevin D. (CMRE, 2019/05)Recent advances in transducer and computing technology have pushed the concept of continuous active sonar (CAS) or high duty cycle sonar as an area of interest for application to antisubmarine warfare. Unlike conventional ... -
Incoherent sub-band averaging for improved target detection and Doppler estimation in linearly frequency modulated continuous active sonar
Bates, Jeffrey; Grimmett, Douglas; Canepa, Gaetano; Tesei, Alessandra (CMRE, 2019/05)Linear frequency modulated (LFM) continuous active sonar (CAS) waveforms show promise for use in target tracking given that waveforms can be split into sub-waveforms (sub-bands), thereby increasing the target refresh rate. ... -
Measurements and modelling of high-frequency acoustic scattering by a rough seafloor and sea surface
Tesei, Alessandra; Canepa, Gaetano; Zampolli, Mario (NURC, 2009/12)Acoustic scattering by a rough, possibly dynamic interface is experimentally studied by insonifying the seabed and the sea surface at high frequency at various incidentangles. A directional source working at 300 kHz was ... -
Real-time continuous active sonar processing
Canepa, Gaetano; Munafò, Andrea; Murphy, Brian; Micheli, Michele; Morlando, Luca (CMRE, 2019/06)This work describes the development of continuous active sonar (CAS) processing at CMRE. The software uses subband processing to achieve a faster update rate than is possible with pulsed active sonar (PAS). The software ... -
Tank measurements of elastic scattering by a resin-filled fiberglass spherical shell
Tesei, Alessandra; Guerrini, Piero; Canepa, Gaetano (NURC, 2007/12)Acoustic elastic scattering measurements were conducted in a tank on a 6cm radius fibreglass spherical shell filled with a low-shear-speed epoxy resin. Preliminary measurements were conducted also on the void shell before ...