Identification of radiotelephony transmissions in VHF band of maritime radio communications

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• 作者：A. V. Shishkin (1)
  
• 刊名：Radioelectronics and Communications Systems
• 出版年：2012
• 出版时间：November 2012
• 年：2012
• 卷：55
• 期：11
• 页码：482-489
• 全文大小：1631KB
• 参考文献：1. G. F. Konahovich and A. Yu. Puzyrenko, / Computer Steganography. Theory and Practice (MK-Press, Kyiv, 2006) [in Russian].
  2. I. J. Cox, et al., / Digital Watermarking and Steganography, 2nd ed. (Morgan Kaufmann Publishers, San Francisco, 2008).
  3. S. I. Gel’fand and M. S. Pinsker, “Coding for channel with random parameters,-Problems of Control and Information Theory 9(1), 19 (1980).
  4. B. Chen and G. W. Wornell, “Quantization index modulation: a class of provably good methods for digital watermarking and information embedding,-IEEE Trans. Inf. Theory 47, No. 4, 1423 (May 2001). CrossRef
  5. H. S. Malvar and D. A. Florencio, “Improved Spread Spectrum: A New Modulation Technique for Robust Watermarking,-IEEE Trans. Signal Process. 51, No. 4, 898 (April 2003). CrossRef
  6. V. Ipatov, / Windeband Systems and Code Division Multiplexing. Principles and Applications (Tekhnosfera, Moscow, 2007) [in Russian].
  7. A. V. Shishkin, “Digital watermarks with spectrum spreading for audio signals using the signal carrier information,-Izv. Vyssh. Uchebn. Zaved., Radioelektron. 51(6), 22 (2008) [Radioelectron. Commun. Syst. 51(6), 308 (2008)], DOI: 10.3103/S0735272708060034.
  8. A. V. Shishkin, “Robust Digital Watermarks for Audio Signals,-Izv. Vyssh. Uchebn. Zaved., Radioelektron. 54(3), 30 (2011) [Radioelectron. Commun. Syst. 54(3), 138 (2011)], DOI: 10.3103/S0735272711030046.
  9. V. P. Dyakonov, / MATLAB 6.5 SP1/7 + Simulink 5/6. Signal Processing and Filter Design (SOLON-Press, Moscow, 2005) [in Russian].
  
• 作者单位：A. V. Shishkin (1)
  
  1. Odessa National Maritime Academy, Odessa, Ukraine
  
• ISSN：1934-8061

文摘

Application of orthogonal frequency division multiplexing (OFDM) is suggested for digital watermarking (DWM) in VHF radiotelephony of maritime mobile service. Algorithm of normalized spreading of DWM energy in the method of improved spread spectrum (ISS) considering information on carrier signal and DWM detection method based on hash function are designed. The OFDM-ISS method allows for achieving the DWM rate of 60-68 bit/sec in the conditions of their acoustic stealthiness in the problem of automatic radiotelephone transmissions identification using existing radio communications equipment.