arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1507.05035math.FA
收藏

分数阶Riesz-希尔伯特变换与分数阶单演信号

Fractional Riesz-Hilbert transforms and fractional monogenic signals

Swanhild Bernstein

摘要:

分数阶希尔伯特变换在光学和信号处理中起着重要的作用。特别地,由Gabor提出的解析信号具有作为关键分量的希尔伯特变换。高维的希尔伯特变换是Riesz-希尔伯特变换,它被Felsberg和Sommer用来构造单基因信号。我们将构造分数和四元分数Riesz-希尔伯特变换的特征值分解的基础上。我们将证明这些变换的性质,如移位和标度不变性,正交性和半群性质。基于分数阶/四元数分数阶Riesz-希尔伯特变换,构造了(四元数)分数阶单演信号。这些信号是旋转和调制的单基因信号。

英文摘要:

The fractional Hilbert transforms plays an important role in optics and signal processing. In particular the analytic signal proposed by Gabor has as a key component the Hilbert transform. The higher dimensional Hilbert transform is the Riesz-Hilbert transform which was used by Felsberg and Sommer to construct the monogenic signal. We will construct fractional and quaternionic fractional Riesz-Hilbert transforms based on a eigenvalue decomposition. We will prove properties of these transformations such as shift and scale invariance, orthogonality and the semigroup property. Based on the fractional/quaternionic fractional Riesz-Hilbert transform we construct (quaternionic) fractional monogenic signals. These signals are rotated and modulated monogenic signals.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑