UNDERWATER MASKED CARRIER ACOUSTIC COMMUNICATION: MODELING AND ANALYSIS
Loading...
Authors
Ferrao, Ryan R.
Subjects
audio steganography
covert communications
underwater acoustic communications
biological mimicry
underwater networks
covert communications
underwater acoustic communications
biological mimicry
underwater networks
Advisors
Kapolka, Daphne
Rohrer, Justin P.
Date of Issue
2018-06
Date
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
As naval warfighting capabilities evolve, the need for innovative communication techniques for tactics and command and control increases. Using Navy sonar systems normally reserved for conventional communication in the underwater channel between vessels to transmit a hidden message disguised as ambient ocean noises or biological noise is a possible way to communicate with a low probability of interception or detection.
This research applies information hiding via steganography in order to embed and extract bits from an audio file after transmission through a simulated underwater acoustic channel. Specifically, we explore a technique which allows us to communicate such that the transmission appears native to the operating environment. We do this by embedding symbols in an audio source in the frequency domain. We demonstrate the success of our technique via traditional steganography metrics and describe its performance limitations. We find that our scheme can be both imperceptible and robust provided that proper embedding and transmission parameters can be determined.
Type
Thesis
Description
Series/Report No
Department
Computer Science (CS)
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.