Probing the underwater acoustic communication channel off Rottnest Island, Western Australia

The emerging field of underwater acoustic communication networks is under-pinned by accurate knowledge on the timevarying distortion of acoustic signals by the ocean. This paper reports on time-varying underwater acoustic channel responses measured over ranges of 100m to 10km in 50m deep water south...

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Bibliographic Details
Main Authors: Caley, M., Duncan, Alec
Format: Conference Paper
Published: 2016
Online Access:http://hdl.handle.net/20.500.11937/56365
Description
Summary:The emerging field of underwater acoustic communication networks is under-pinned by accurate knowledge on the timevarying distortion of acoustic signals by the ocean. This paper reports on time-varying underwater acoustic channel responses measured over ranges of 100m to 10km in 50m deep water south-west of Rottnest Island, Western Australia, for 9-15kHz band signals. The channel response measurement techniques are described, including post-processing by correlative channel probing. The measured channel response spreading function is presented which conveys the spectrum of Doppler frequency shifts imparted by the ocean environment to transmitted data signals.