A new digital CDMA watermarking algorithm based on orthogonal wavelet basis is proposed in this paper.
提出一种以正交小波基作为扩频码的CDMA自适应水印算法。
参考来源 - 基于小波基的CDMA自适应水印算法·2,447,543篇论文数据，部分数据来源于NoteExpress
利用双正交小波基将齿轮的故障振动信号分解到时频域，并提取出齿轮的故障特征。
This paper mainly introduces that the fault vibrating signal of gears was decomposed into time-frequency domains by double-orthogonal wavelet analysis and the fault feature of gears was picked up.
实验证明该方法的去噪效果明显优于正交小波方法和普通双正交小波变换的去噪效果。
The experiment results show the de-noising effect of proposed method is better than those of the orthogonal wavelet transform and the common biorthogonal wavelet transform.
特别是对阈值去噪方法，提出了一种基于正交小波变换和自适应学习算法的噪声抑制方法。
Especially to threshold de-noising, a method based on orthogonal wavelet analysis and self-adaptive learning algorithm was proposed here.
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