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传播频数字水印

于 2022-01-25 发布 文件大小:2.54 kB
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在扩频空域系统,一个spreadwatermark信号隐藏在另一个扩频信号相同的频谱。水印是将一个小秘密throughmodulation与基于密钥的PRNS准备,而直接作为第二扩频信号的原始媒体。一个水印信号的引入到原来的媒体传播的许多信号样本,以便在每个样品watermarkenergy可以减少到一个不起眼的水平对人类感知系统。此外,由于该PRNS嘈杂的性质

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