| 扩频通信中扩频水印的嵌入方法 |
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| 引用本文： | 何世彪,杨士中.扩频通信中扩频水印的嵌入方法[J].电讯技术,2005,45(4):103-106. |
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| 作者姓名： | 何世彪 杨士中 |
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| 作者单位： | 重庆大学,通信与测控研究所,重庆,400044;重庆通信学院,重庆,400035;重庆大学,通信与测控研究所,重庆,400044 |
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| 摘 要： | 本文提出了一种基于多码扩频(MC-DSSS)技术的数字水印嵌入方法,即利用扩频码的正交性将扩频水印嵌入到扩频通信信号中。理论分析和仿真结果表明,此种方法嵌入的水印具有很多优点,如透明性、鲁棒性和可靠性等,并具有良好的抗干扰性能。
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| 关 键 词： | 扩频通信 数字水印 语音信号 扩频水印 嵌入方法 |
| 文章编号： | 1001-893X（2005）04-0103-04 |
| 收稿时间： | 2004-08-26 |
| 修稿时间： | 2004-08-26 |
A Method of Inserting Spread Spectrum Watermarking into Spread Spectrum Signal |
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| HE Shi-biao,YANG Shi-zhong.A Method of Inserting Spread Spectrum Watermarking into Spread Spectrum Signal[J].Telecommunication Engineering,2005,45(4):103-106. |
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| Authors: | HE Shi-biao YANG Shi-zhong |
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| Abstract: | A new method based on Multi-code Direct Sequence Spread Spectrum(MC-DSSS)technology is proposed to insert a spread spectrum watermarking into a spread spectrum communication signal?In this method,the spread spectrum signal plus spread spectrum watermarking are transmitted into channel,but their spread codes are orthogonal?The theoretical analysis and simulation indicate that there are many advantages in this watermarking,such as transparency,reliability,robustness and anti-jamming. |
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| Keywords: | Spread spectrum communication Digital watermarking Voice signal Spread spectrum watermarking Inserting method |
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