ACOUSTIC SOURCE ARRAY SYSTEM MODULE FOR UNDERWATER OPERATION WHICH CAN BE INSTALLED ON A MOTORIZED BOAT

摘要

The array (14) is made up as a ladder structure in which the airguns (30) are disposed horizontally between vertical support and umbilical lines (27 & 29), with their discharge ports in laterally offset relationship to minimize undesirable interactions between the acoustic transmissions released into the water by sources and to maximize the acoustic output of the array for a given length. A structure stows the array on the boat for transport when the array is not deployed for use. The stowed array may be substantially enclosed by the hull of the boat. The stowage structure is defined by a track on the top of the deck. Umbilical cables attached to the array are translated, as by being wound on a drum and unwound therefrom, to deploy or retrieve the array over the stern of the boat. The umbilicals provide power (compressed air to the airguns and control signals for timed actuation of the airguns).