Modeling of leaked digital video signal and information recovery rate as a function of SNR

Tae Lim Song, Yi Ru Jeong, Jong Gwan Yook

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


Substantial information leakage at PC monitors and TV systems arises in the form of unintentional emissions of high-speed digital video signals, such as DVI/HDMI. The information recovery rate from the emanated video signal varies depending on the SNR of the receiver system, which is placed a certain distance away. In this study, a situation in which the signal from a digital video system is intercepted is modeled using full-wave electromagnetic and circuit simulations. For a quantitative evaluation of the eavesdropping threat of display systems and the effect of its countermeasure, the readability of characters on a hypothetical screen as a function of the BER of the recovery signals is presented. It is clear that a decrease of the SNR of the received signal causes a deterioration of the digital video signal-recovery rate and consequently degrades the legibility of the characters on the intercepted screen. It is expected that these techniques can be useful for measurements and analyses of the effects of countermeasures, such as noise jamming or signal modulation, to prevent interceptions of digital video information.

Original languageEnglish
Article number6985629
Pages (from-to)164-172
Number of pages9
JournalIEEE Transactions on Electromagnetic Compatibility
Issue number2
Publication statusPublished - 2015 Apr 1

Bibliographical note

Publisher Copyright:
© 1964-2012 IEEE.

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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