然后介绍了几种经典的音频信息隐藏算法，如最不重要位，相位编码和回声编码，并且将它们用在我们这套系统中实现了隐秘通信。
Then it introduces some classical arithmetic of audio information hiding, such as Least Significant Bit, Phase Coding, Echo hiding. And we use them in our system to realize covert communication.
隐秘通信系统的核心是信息隐藏技术，它着眼于被隐藏信息本身的不可探测性。
The main technique for steganographic system is information hiding in which the existence of the hidden message should not be detectable.
本文研究的是音频信息隐藏隐秘通信系统的设计与实现。
This paper focuses on the design and realization of the covert communication system based on audio information hiding.
系统还采用了用户态—内核态通信、内核态发包、内核模块隐藏等技术。
This system also adopts some technologies such as communications between user space and kernel space, sending package from kernel mode, kernel module hiding, etc.
举例来说，最早类型的光纤通信系统可能是，在其中一盏灯，是按顺序从隐藏的视线固定期之间的时期，正处于平原的看法。
For example, the earliest types of optical communication systems were probably ones in which a lamp was sequentially hidden from sight for fixed periods between periods of being in plain view.
流媒体信息隐藏是当前信息安全技术领域的研究热点，但基于流媒体的隐蔽通信技术还缺少系统模型和标准。
Being a new hot spot in the research of information security, the streaming media based information hiding is still lacking theoretical system model and standardization.
混沌系统对初值的敏感性会使系统产生不可预见性和内在随机性，这一特性可以用来隐藏信号，进行混沌通信。
Behavior of the chaos system may be not the foresight, and is the intrinsic randomness for the initial value sensitivity, which can be used to hide signal in the security communication.
接地线穿过桩子，然后用锤子敲入受保护通信系统附近地面，这些通信系统通常隐藏于军用车辆中。
Grounding wires are threaded through stakes, which are hammered into the ground around a sheltered communications system, usually housed in a military vehicle.
接地线穿过桩子，然后用锤子敲入受保护通信系统附近地面，这些通信系统通常隐藏于军用车辆中。
Grounding wires are threaded through stakes, which are hammered into the ground around a sheltered communications system, usually housed in a military vehicle.
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