Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2011, Vol. 34 ›› Issue (1): 26-29.doi: 10.13190/jbupt.201101.26.yangwh

• Papers • Previous Articles     Next Articles

Analysis of Information Recovery from EM Leakage of Computers

YANG Wen-Han   

  • Received:2010-03-18 Revised:2010-10-11 Online:2011-02-28 Published:2011-02-28
  • Contact: YANG Wen-Han E-mail:ywh.168@163.com

Abstract:

Based on the proven communications technology, the transmitted electromagnetic pulse/energy standards and testing (TEMPEST) is studied. The propagation model of computer information leakage is compared with conventional communication system model. Then coding and modulation of computer video information is analyzed, and the recovery method is given. Finally, an equivalent communication system model of computer video information leakage, reception, demodulation and decoding is established, indicating that the communication technology is effective in transmitted electromagnetic pulse/energy standards and testing study.

Key words: electromagnetic information leakage, information recovery, communication system