摘要： 在前人数字水印音频隐藏技术的基础上，提出了一种基于听觉掩蔽特性的扩频信息隐藏算法，该算法充分利用了扩频系统抗干扰性强、隐蔽性好的特点，引入了子带分割及多相离散余弦滤波器组的思想，为了补偿由于信道噪声等引起的错误，提高接收端数据提取的正确率，该算法还使用了冗余和纠错编码技术，有效地解决了传统信息隐藏算法知觉相似性、鲁棒性及安全性差的问题，属盲检测算法，实验结果验证了该算法的有效性和鲁棒性。

关键词: 音频信号；信息隐藏；听觉感知；扩频通信；隐蔽通信

Abstract: Based on sufficient research to characteristics of digital watermark, this paper puts forward an adaptive spread spectrum information hiding algorithm which is based on auditory perception. The proposed algorithm makes the best of interference immunity and visibility of the spread spectrum system. In addition, it introduces the ideas of sub-strip division and multi-phase discrete cosine filter. To compensate errors caused by channel noise and improve accuracy while picking up data, redundancy and error-correcting techniques are also integrated into the algorithm, which overcome deficiency in perception similarity, robustness and security that bothers traditional information hiding method. The algorithm, which falls into blind checking catalogue, has been prove effective through considerable experiments

Key words: Audio signals; Information hiding; Auditory perception; Spread spectrum communication; Covert communication