Multiplexing of digital information in VHF maritime radiotelephony

  title={Multiplexing of digital information in VHF maritime radiotelephony},
  author={Aleksandr V. Shishkin and A. A. Lyashko},
  journal={2012 22nd International Crimean Conference "Microwave & Telecommunication Technology"},
The complex system for covered transmission of digital information in standard VHF maritime radiotelephone channels is designed on the basis of digital watermarking (DWM) technology. Audio imperceptibility and interference stability of multiplexed digital data are provided with application of OFDM and ISS algorithms in cooperation with new methods of normalized distribution of introduced distortions and data block detection using hash functions. It is based on OFDM modulation and ISS method… CONTINUE READING