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A novel radio frequency (RF) steganography scheme is proposed to hide digital communication in linear frequency modulation (LFM) radar signals.
Proceedings ArticleDOI
A. K. Bhattacharjya, H. Ancin 
24 Oct 1999
59 Citations
It is comparatively easy to hide a signal in natural images since the human visual system is less sensitive to signals embedded in noisy image regions containing high spatial frequencies.
We then propose a scheme to hide synchronization marks through the modulation of the embedded signal by a content-based pseudo-random signal.
In this paper, we propose a new scheme of data hiding which takes advantage of the masking property of the Human Auditory System (HAS) to hide a secret (speech) signal into a host (speech) signal.
On the other hand, the dispersion effect in the stealth channel can be employed to hide the stealth signal in the time domain.
In this work, we present a novel modulation scheme to completely hide all communications within background music sound.
Therefore, this study proposes a useful approach to contact detection that uses a variable dynamic threshold for a jerk signal.
The proposed method allows ECG signal to hide its corresponding patient confidential data and other physiological information thus guaranteeing the integration between ECG and the rest.
This paper proposes a new algorithm to hide the data in Audio signal and it uses Linear Subsequence Algorithm (LSA) which increases data protection.
Proceedings ArticleDOI
Qiang Cheng, Jeffrey Sorensen 
07 May 2001
86 Citations
However, using speech analysis techniques, one may design an effective data signal that can be used to hide an arbitrary message in a speech signal.