Browsing by Author "Potter, John Robert"
Now showing items 1-8 of 8
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A new ambient noise imaging system for ANI, passive and bistatic active acoustic imaging in shallow water
Potter, John Robert (NATO. SACLANTCEN, 1997)Shallow water active and passive sonars can be usefully complimented by broadband Ambient Noise Imaging (ANI) systems. The first AN1 system was largely analogue, produced good images at 38 m range, but was bulky and permitted ... -
A simple deconvolution method for NAPOLI'85
Potter, John Robert (NATO. SACLANTCEN, 1991/10)An inverse filter (deconvolution in the frequency domain) is applied -
Oceanographic analysis of NAPOLI'85, an experiment in the Tyrrhenian Sea
Potter, John Robert (NATO. SACLANTCEN, 1990/03)In 1985, an acoustic/oceanographic experiment (NAPOLI '85) was carried out in the Tyrrhenian Sea to investigate acoustic propagation -
Performance evaluation of underwater medium access control protocols: at-sea experiments
Petroccia, Roberto; Petrioli, Chiara; Potter, John Robert (CMRE, 2019/06)In this paper, we investigate the performance of three medium access control (MAC) protocols (CSMA, TLohi, and DACAP) representing simple, intermediate, and fully negotiated protocols, to access the underwater acoustic ... -
Receiving and transmitting acoustic systems for AUV/gliders
Maguer, Alain; Dymond, Rodney; Guerrini, Piero; Troiano, Luigi; Grandi, Vittorio; Figoli, Alberto; Olivero, Claudio; Sapienza, Alessandro; Fioravanti, Stefano; Potter, John Robert (NURC, 2009/12)NURC in the past years have focused its research on the use of AUV and more recently on gliders and is now developing littoral autonomous sensing networks based onthose sensors to perform missions such as mine warfare, ... -
Transmission-time variability, vertical spatial and temporal analysis of NAPOLI'85, an experiment in the Tyrrhenian Sea
Potter, John Robert; Akal, Tuncay; Uscinski, B. J. (NATO. SACLANTCEN, 1989/09)An acoustic propagation experiment (NAPOLI '85) was carried out in the Tyrrhenian Sea in October 1985 in which signals from a broadband source were recorded at a range of 5 km with a vertical 62-m hydrophone array over a ... -
Underwater communications research and development at CMRE
Alves, João; LePage, Kevin D.; Guerrini, Piero; Potter, John Robert; Zappa, Giovanni; Munafò, Andrea; Furfaro, Thomas C.; Vermeij, Arjan (CMRE, 2019/06)A key to developing autonomous maritime systems for NATO is communication among data gathering platforms below and above the water. However, unlike the mature technologies that are used for terrestrial networks, underwater ... -
Underwater optical and acoustic imaging: a time for fusion? a brief overview of the state-of-the-art
Ferreira, Fausto; Machado, Diogo; Ferri, Gabriele; Dugelay, Samantha; Potter, John Robert (CMRE, 2019/06)Underwater optical imaging has several drawbacks inherent to the physical medium such as light attenuation and turbidity. Sonars try to obviate those issues although, typically, they have lower resolutions. Combining visual ...