Marine surveying

Abstract

Disclosed is a system for surveying the structure beneath the seabed using a sub-bottom profiler. The system can include a survey vessel and a sub-bottom profiler mounted to travel with the survey vessel. The sub-bottom profiler can comprise a transmitter for transmitting pulses at a predetermined period between pulses towards the seabed, and a first receiver and a second receiver for receiving reflections from the seabed of each transmitted pulse. The system can also include that the transmitter and the first and second receivers are mounted along an axis in the direction of travel of the survey vessel and the transmitter is disposed between the first and second receivers and spaced from each of them by a predetermined separation.

Dependencies are inferred from the claim text.