The Towed Torpedo Emulator (TOTEM) System

Author

Trevorrow, Mark V. ; Fleming, Richard A G

Author_Institution

Defence R&D Canada, Dartmouth

fYear

2007

fDate

Sept. 29 2007-Oct. 4 2007

Firstpage

1

Lastpage

4

Abstract

This article describes a new towed underwater acoustic projector system designed to exercise Naval surface ship torpedo detection systems. The TOTEM system is built around a standard 7-m Rigid-Hulled Inflatable Boat (RHIB), with capability for towing the acoustic projector towfish at depths up to 40 m and speeds up to 20 knots. The RHIB was modified with a more powerful (260 HP) engine, a twin-counter-rotating propeller drive, a hydraulic winch, and deployment/recovery A- frame. The acoustic projector systems were designed to broadcast torpedo-like signatures, contained in standard WAV files, over the frequency band 100 Hz to 10 kHz, with an additional 20- 32 kHz pinger emulating a torpedo sonar. An overview of the system design and results from recent sea-trials and acoustic calibrations will be given.

Keywords

military equipment; missiles; sonar; underwater sound; RHIB engine; TOTEM system; WAV files; acoustic projector towfish; deployment-recovery A frame; frequency 100 Hz to 10 kHz; hydraulic winch; naval surface ship torpedo detection systems; power 260 hp; rigid hulled inflatable boat; size 7 m; system design; torpedo like signature; torpedo sonar emulation; towed torpedo emulator system; towed underwater acoustic projector system; twin counter rotating propeller drive; Acoustic signal detection; Boats; Broadcasting; Engines; Marine vehicles; Propellers; Sea surface; Underwater acoustics; Underwater tracking; Winches;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS 2007

Conference_Location

Vancouver, BC

Print_ISBN

978-0933957-35-0

Electronic_ISBN

978-0933957-35-0

Type

conf

DOI

10.1109/OCEANS.2007.4449127

Filename

4449127