Improved resistance against time desynchronization attacks in multibit audio watermarking

被引：0
|
作者：
Cvejic, Nedeljko [1 ]
Seppanen, Tapio [2 ]
机构：
[1] Univ Bristol, Dept E&E Engn, MVB, Woodland Rd, Bristol BS8 1UB, Avon, England
[2] Univ Oulu, Dept Info Engn, Oulu 90014, Finland
来源：
2007 9TH INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND ITS APPLICATIONS, VOLS 1-3 | 2007年
关键词：
D O I：
暂无
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This paper addresses the problem of the considerably decreased performance of spread spectrumaudio watermarking in the presence of time scale modification attack. An adaptive receiver is described, which can precisely estimate the quantization step needed to overcome the time scale modification attack. ne proposed scheme obtains significantly lower bit error rates in the presence of DA/AD conversion and time scalemodification, obtaining smaller bit error rate up to an order of value.
引用
收藏
页码：548 / +
页数：2
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