On Estimation Accuracy of Desynchronization Attack Channel Parameters

In this paper, we study some fundamental performance limits of blind data hiding against desynchronization attacks. These attacks are modeled in addition to independent Gaussian noise to the marked signal, followed by linear, time-invariant filtering. We study a joint estimator-decoder which estimat...

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Veröffentlicht in:	IEEE transactions on information forensics and security 2009-09, Vol.4 (3), p.284-292
Hauptverfasser:	Sadasivam, S., Moulin, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Accuracy Blind decoding Blinds Channels CramÉr-Rao bound (CRB) Data encapsulation data-hiding Decoding Delay desynchronization attacks discrete Fourier transform (DFT) Discrete Fourier transforms Estimates estimator-decoder Filtering Fisher information Forensic engineering Gaussian noise linear time-invariant (LTI) system Mathematical models Modulation Modulation coding Nonlinear filters Quantization quantization index modulation (QIM) Robustness
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