This study confirms the possibility of information leakage from two typical display devices with liquid crystal display (LCD). The compromising electromagnetic emanations are measured by log periodic antenna and wideband receiver in various distances. Frequency bands of leaked signal related to display on monitor exist in the range of several hundred megahertz with about ten megahertz bandwidth, which are different as display devices. Measured emanated signal is recovered as display by signal processing technique using software. In this process, timing parameters that necessary to composition of display are detected and clear recovered image is achieved by averaging multiple frames. The tendency of information leakage according to distance and display composition is analyzed by recovering emanated electromagnetic.
|Title of host publication||2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||4|
|Publication status||Published - 2016 Oct 19|
|Event||2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 - Seoul, Korea, Republic of|
Duration: 2016 Aug 21 → 2016 Aug 25
|Name||2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016|
|Other||2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016|
|Country||Korea, Republic of|
|Period||16/8/21 → 16/8/25|
Bibliographical notePublisher Copyright:
© 2016 IEEE.
All Science Journal Classification (ASJC) codes
- Signal Processing
- Computer Networks and Communications