提出了一种适应于短波窄带信道的自同步音频水印算法。
This article presents a novel self-synchronizing audio watermark algorithm for shortwave narrow band channel.
该算法具有如下特点：（1 ）在隐藏水印信息的同时，嵌入一个同步信号，使水印具有自同步能力；
The features of the proposed algorithm are as follows: (1) Synchronization code is embedded into audio with the watermark, and the watermark thus generated has the ability of self synchronization.
本文将模糊PD自整定算法引入双丝杆同步控制系统，使其获得了较高的精度及良好的动态特性。
The experimental results have proved that this algorithm can endowed the system with high accuracy and satisfying dynamic characteristic.
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