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Tomasz Neumann
 

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TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
www http://www.transnav.eu
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Stealthy Information Transmission in the Terrestrial GMDSS Radiotelephone Communication
1 National University “Odessa Maritime Academy”, Odessa, Ukraine
ABSTRACT: Audio watermarking (AW) technology is considered for stealthy information embedding directly into audio signal. Inherent in analog radiotelephone channel interferences against watermarks are analyzed. Robust encoding/decoding algorithms are presented and appropriate project of AW system named as Automatic Radio Telephone Identification System (ARTIS) is proposed. Experimental results for the practical VHF radio channel are presented. Relating on processing complexity the designed system enables imperceptibly transmit data on a rate up to 260 bit/sec in the standard VHF radio channel. ARTIS provides the full compatibility with the existing radio installation, and doesn?t require replacement of standard VHF transceivers and operational procedures. Besides, automatic identification the system may be used in the special applications, for example, under the threat of terrorist attack; generally contributes to navigation safety and information security.
REFERENCES
ETSI EN 300698-1. Radio telephone transmitters and receivers for the maritime mobile service operating in the VHF bands used on inland waterways; Part 1: Technical characteristics and methods of measurement. 50 p.
Automatic Transmission of the Identification of the Radiotelephone Station. COMSAR 16/7, 15 December 2011.
K. Hofbauer, G. Kubin “High-Rate Data Embedding in Unvoiced Speech”. http://www.eurocontrol.int/eec/public/standard_page/DOC_Conf_2006_012.html
Shishkin A. V. “Identification of radiotelephony transmissions in VHF band of maritime radio communications”, Radioelectronics and Communication Systems, November 2012, Vol. 55, No. 11, pp. 482-489
A.Shishkin, V.Koshevoy “Audio Watermarking in the Maritime VHF Radiotelephony” // Weintrit A. (ed.): Navigational Problems. Marine Navigation and Safety of Sea Transportation. A Balkema Book, CRC Press, Taylor & Francis Group, Boca Raton – London - New York – Leiden, 2013, ISBN: 978-1-138-00107-7. pp. 293 – 298.
Cox, I.J. Miller, M.L., Bloom, J.A., Fridrich, J., Kalker T. 2008. Digital watermarking and steganography. Second Edition – Morgan Kaufmann Publishers. 594 p.
M.H.M.Сosta, “Writing on dirty paper,” IEEE Transactions on Information Theory, vol. IT-29, pp. 439-441, May 1983.
Xinshan Zhu, Shuoling Peng “A Novel Quantization Watermarking Scheme by Modulating the Normalized Correlation”, IEEE Int. Conf. Acoustics, Speech and Signal Processing (ICASSP), March 2012, pp. 1765-1768.
Hofbauer, K. et al. “Speech watermarking for analog flat-fading bandpass channels”, IEEE Transactions on Audio, Speech, and Language Processing, 2009, Vol.17, No. 8, pp. 1624 – 1637.
Shishkin A.V. “OFDM-based audio watermarking for electronic radiotelephone identification”, EWDTS’2010. St. Petersburg, Russia, 2010. pp. 190-194.
Citation note:
Shishkin A.V., Koshevoy V.M.: Stealthy Information Transmission in the Terrestrial GMDSS Radiotelephone Communication. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 7, No. 4, doi:10.12716/1001.07.04.09, pp. 541-548, 2013

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