By Topic

Underwater acoustic communication using sliding discrete fourier transform

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Zielinski, A. ; Memorial University of Newfoundland, St. Johns, Newfoundland, Canada ; Caldera, M.

Strong multipath conditions which exist particularly in a shallow water acoustic channel make conventional synchronous transmission schemes ineffective for communication with untethered submersibles. Noncoherent detection schemes employing frequency diversity have been proposed to improve transmission reliability. These schemes generally require complex implementation. In this paper a novel demodulation scheme based on the Sliding Discrete Fourier Transform (SDFT) is described. The system operates on constant envelope signals, can tolerate large Doppler frequency shifts and multipath environment. With the availability of VLSI circuits to implement the SDFT algorithm this scheme is particularly attractive for untethered remotely controlled submersibles where power and space conservation are of prime importance.

Published in:

Unmanned Untethered Submersible Technology, Proceedings of the 1985 4th International Symposium on  (Volume:4 )

Date of Conference:

Jun 1985