97

  • Internet havola
  • DOI
  • UzSCI tizimida yaratilgan sana 25-04-2023
  • O'qishlar soni 97
  • Nashr sanasi 20-04-2023
  • Asosiy tilO'zbek
  • Sahifalar104-110
Kalit so'z
English

In this passage discusses a stealth scheme for transmitting optical code division
multiple access (OCDMA) signal data over a common binary phase shift keying (BPSK) channel.
The signal can be hidden under the bulk signal and system noise. The receiver uses a polarizer to
remove the BPSK signal and uses a detector to recover the stealth signal. When the emission
noise power is properly adjusted, it creates a stealth signal based on the common channel, while
having very little effect on the BPSK surround signal. BPSK demodulation masks the stealth signal
in the common channel demodulator so that the stealth signal does not affect the common
channel and the two signals do not interfere with each other.
 

№ Muallifning F.I.Sh. Lavozimi Tashkilot nomi
1 Abdullaeva G.M. teacher TSTU
2 Shamshieva B.M. teacher TUIT
3 Jabbarov N.A. teacher TUIT
4 Turdibekov B.B. teacher TUIT
№ Havola nomi
1 B. Wu., B.J. Shastri., P. Mittal., A.N. Tait., P.R. Prucnal. Optical Signal Processing and Stealth Transmission for Privacy. “IEEE J. Sel. Top. Signal Process”, 2015. 1185
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3 J. MacAskill., N. Borger., N. Hopkins., J. Davies. “GCHQ taps fibre-optic cables for secret access to world’s communications”, 2013.
4 J. Ball. “NSA stores metadata of millions of web users for up to a year, secret files show”, 2013.
5 T. Wang., X. Cai., R. Nithyanand., R. Johnson., I. Goldberg. “Effective attacks and provable defenses for website fingerprinting, in Proc. 23rd USENIX Secur. Symp”, 2014. 143.
6 L. Boney., A. Tewfik., K. Hamdy. Digital watermarks for audio signals, in Proc. “3rd IEEE Int. Conf. Multimedia Computer System”, 1996. 473
7 D. Artz. “Digital steganography: Hiding data within data, IEEE Internet Computing”, 2001. 75
8 H. Wang., S. Wang. “Cyber warfare: Steganography vs. stag analysis, Commun. ACM”, 2004. 76
9 B. Wu., A. Tait., M. Chang., R. Prucnal. “WDM optical steganography based on amplified spontaneous emission noise”, 2014. 5925
10 B. Wu. “Optical steganography based on amplified spontaneous emission noise”, 2013. 2065
11 A. Malik., P. Singh. Free space optics: current applications and future challenges. “International Journal Optics”, 2015. 1.
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