Oversampling of Fourier coefficients for hiding messages

J. R. Miotke, L. Rebollo-Neira*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Oversampling of Fourier coefficients is a common practice in signal processing applications, which is usually implemented by the padding with zeros technique. In this note we would like to highlight that, as a consequence of such a procedure, uniqueness in the representation is lost. A space is thereby created which we show to be suitable for embedding encrypted information while transmitting/storing a signal. The oversampling parameter provides the safety key for retrieving the code.

Original languageEnglish
Pages (from-to)203-207
Number of pages5
JournalApplied and Computational Harmonic Analysis
Volume16
Issue number3
DOIs
Publication statusPublished - 1 May 2004

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