2011 International Conference on Internet Technology and Applications 2011
DOI: 10.1109/itap.2011.6006362
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Robustness Performance Analysis of Audio Watermarking Algorithm Based on Direct Sequence Spread Spectrum

Abstract: To analyze the robustness performance of direct sequence spread spectrum (DSSS) based audio watermarking algorithm theoretically, the fundamental principle of spread spectrum watermarking is analyzed firstly. The communication model of DSSS-based audio watermarking system is designed according to the spread spectrum communication theory. The interrelation between bit error rate (BER) and watermark power and processing gain is revealed by utilizing definition of the optimal baseband transmission system under id… Show more

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“…In the implementation the signal is multiplied 'directly' by a random number of random numbers called pseudo noise sequence (PN Sequence). In [24][25][26][27][28], SS based watermarking schemes can improved the watermark payload or capacity. Next, QIM is applied on each watermark bits at the certain subband of all time slots where GA optimize the position of subband to obtain highest imperceptibility and robustness.…”
Section: Introductionmentioning
confidence: 99%
“…In the implementation the signal is multiplied 'directly' by a random number of random numbers called pseudo noise sequence (PN Sequence). In [24][25][26][27][28], SS based watermarking schemes can improved the watermark payload or capacity. Next, QIM is applied on each watermark bits at the certain subband of all time slots where GA optimize the position of subband to obtain highest imperceptibility and robustness.…”
Section: Introductionmentioning
confidence: 99%