Title :
Application of weak signal extraction technology in computer video leaking measurement system
Author :
Yiwen Tang ; Chang Huang
Author_Institution :
Sci. & Technol. on Electromagn. Scattering Lab., Shanghai, China
Abstract :
The technology of detection and reconstruction for valid information is a research emphasis in TMPEST, the technology of electromagnetic leaking research. After the research and analysis of computer video leaking in CRT system, the problem of weak signal extraction in receiving part of computer video leaking measurement system is pointed out. The extraction method for horizontal synchronization signals based on the correlation technique and de-noising method for video leaking signals based on the one-dimensional wavelet transform are proposed, which are of great importance in detecting and reconstruction of video leaking signal.
Keywords :
feature extraction; image denoising; image reconstruction; video signal processing; wavelet transforms; CRT system; TMPEST; computer video leaking measurement system; correlation technique; denoising method; horizontal synchronization signals; information detection; information reconstruction; one-dimensional wavelet transform; video leaking signals; weak signal extraction technology; Computers; Correlation; Electromagnetics; Noise; Synchronization; Wavelet transforms;
Conference_Titel :
Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on
Conference_Location :
Xian
Print_ISBN :
978-1-4673-1799-3
DOI :
10.1109/ISAPE.2012.6408974
