Sample raw acoustic datasets acquired from hydrophone array SLiTA (SLim Towed Array, specific for AUV applications) towed by marine autonomous vehicles (e.g, Autonomous Underwater Vehicles, AUVs) [*] during three STO-CMRE sea trials: PORTOPALO (2013), at Portopalo di Capo Passero, Sicily, Italy, on 18-19 February 2013 COLLAB13, at Palmaria Island, La Spezia, Italy, on 30 June - 7 July 2013 COLLAB14, at Massa, Italy, on 29-31 October 2014 Access to this dataset is restricted to NATO and H2020 INFORE consortium. This data set is provided to INFORE consortium partners for the purposes of executing tasks under the INFORE Grant Agreement and may not be used for other purposes or further distributed. The creation of derived products, as well the use in scientific publications must be pre-approved by NATO STO CMRE and acknowledged. These data are available to partners of NATO Nations after the execution of the project on the basis of existing NATO policies and rules for data release, other memorandum of understanding and agreements, and on the basis of CMRE terms and conditions for data reuse. Acoustic raw data from SliTa array header specification is described in the Table below, Field Name Data Type Description headersize int Size of header in bytes dataFormat int 0 means 2’s complement; 1 means Offset Binary fs float Sampling Frequency [Hz] inputRange int Flag to determine the max voltage. {3=10V, 2=5V, else 2.5V} gainHydPreamp float Preamplifier fain gainA2dAmp float A/D gain dataWidth int Flag to determine the number of bit per sample {3=24bit, 2=20bit, 1=18bit, else 15bit} acqLength float Size (in seconds) on each block of data returned by A/D octave int Determine the array spacing: {1=0.21m, 2=0.42, 3=0.84, 4=1.05m} pc_day int Day from PC time pc_month int Month from PC time pc_year int Year from PC time pc_hr int Hour from PC time pc_min int Minute from PC time pc_sec int Seconds from PC time gps_month int Month from GPS gps_day int Day from GPS gps_year int Year from GPS oex_hr int Hour from Frontseat PC oex_min int Minute from Frontseat PC oex_sec double Seconds from Frontseat PC lat_deg int Latitude [degrees] lat_min double Latitude [minutes] lon_deg int Longitude [degrees] lon_min double Longitude [minutes] heading float Size of header in bytes cog float 0 means 2’s complement; 1 means Offset Binary depth float Sampling Frequency [Hz] altitude double Flag to determine the max voltage. {3=10V, 2=5V, else 2.5V} sog(dm/s) int Preamplifier fain sow(dm/s) int A/D gain track_stat int Flag to determine the number of bit per sample {3=24bit, 2=20bit, 1=18bit, else 15bit} fix_type int Size (in seconds) on each block of data returned by A/D pps_output int Determine the array spacing: {1=0.21m, 2=0.42, 3=0.84, 4=1.05m} [*] Alain Maguer, Rodney Dymond, Piero Guerrini, Luigi Troiano, Vittorio Grandi, Alberto Figoli, Claudio Olivero, Alessandro Sapienza, Stefano Fioravanti, John Potter Receiving and transmitting acoustic systems for AUV/gliders. Proceedings of the 3rd International Conference and Exhibition on Underwater Acoustic Measurements: Technologies and Results, 21-26 June, 2009, Nafplion, Greece. https://openlibrary.cmre.nato.int/bitstream/handle/20.500.12489/651/NURC-PR-2009-004.pdf

{"references": ["Alain Maguer, Rodney Dymond, Piero Guerrini, Luigi Troiano, Vittorio Grandi, Alberto Figoli, Claudio Olivero, Alessandro Sapienza, Stefano Fioravanti, John Potter Receiving and transmitting acoustic systems for AUV/gliders. Proceedings of the 3rd International Conference and Exhibition on Underwater Acoustic Measurements: Technologies and Results, 21-26 June, 2009, Nafplion, Greece.\u00a0 https://openlibrary.cmre.nato.int/bitstream/handle/20.500.12489/651/NURC-PR-2009-004.pdf"]}