Chaos masking, chaotic parameter modulation, chaos shift keying, chaotic spread spectrum sequence are discussed in detail.

其中重点分析了混沌掩盖技术，混沌参数调制技术，混沌键控技术和混沌扩频技术的原理。

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The concepts of chaos and chaos synchronization are reviewed firstly in this dissertation, and the present researches of chaos based digital watermarking are generalized and summarized in detail.

主要研究内容包括：论文首先回顾了混沌及混沌同步的有关概念，对基于混沌的数字水印研究概况进行了详细地概括与总结。

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Today's prediction is chaos unless every last digital converter subsidy detail is resolved and communicated to the public.

ENGADGET: DTV bill already causes doom and gloom HD