Audio Watermarking System Based on Detection Theory of Chaotic Phase Transformation

摘要：

An audio system which bases on detection theory of chaotic phase transformation is expounded aiming to detect the watermark. It utilizes the characteristic of weak signal detection by chaotic system. Set the format of watermark as a sine wave which has the same frequency of chaotic detection system. Because small movement can make the statement of chaotic system change from the state of critical cycle to the large-scale one, it can detect watermark by chaotic phase transformation. The watermark signal can be extracted by blind detection, simulation experiments are progressed from these aspects, and the result indicates that the algorithm has highly security and robustness.

关键词： Audio Watermark Chaotic System Weak Signal Detection Blind Detection

作者: CHEN Xue-song ZHANG Xuan GAO Chang YANG Yong-tian

作者单位: Harbin Engineering University, College of Computer Science and Technology, Harbin 150001,China Daqin Daqing Petroleum Institute, Faculty of Electricity and Information Engineering, Daqing 163318,China Harbin Engineering University, College of Computer Science and Technology, Harbin 150001,China

会议类型: 国际会议

会议名称: 2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)

会议地点: 广西桂林

会议语种:英文

页码: 4020-4025

在线出版日期: 2009-06-17（万方平台首次上网日期，不代表论文的发表时间）