Uncertainty inequalities for linear canonical transform

被引:59
|
作者
Xu, Guanlei [1 ,3 ]
Wang, Xiaotong [1 ,3 ]
Xu, Xiaogang [2 ,3 ]
机构
[1] Dalian Naval Acad, Dept Nav, Dalian 116018, Peoples R China
[2] Dalian Naval Acad, Dept Automatizat, Dalian 116018, Peoples R China
[3] Dalian Naval Acad, Inst Photoelect Technol, Dalian 116018, Peoples R China
关键词
FRACTIONAL FOURIER-TRANSFORMS; REAL SIGNALS; PHASE-SPACE; PRINCIPLES; DOMAINS;
D O I
10.1049/iet-spr.2008.0102
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The novel Hausdorff-Young inequalities associated with the linear canonical transform (LCT) are derived based on the relation between the Fourier transform and the LCT in p-norm space (0 < p < infinity). Uncertainty relations for Shannon entropy and Renyi entropy based on the derived Hausdorff -Young inequality are yielded. It shows that these relations are functions of the transform parameters (a, b, c, d). Meanwhile, from the uncertainty relation for Shannon entropy the Heisenberg's uncertainty relation in LCT domains is derived, which holds for both real and complex signals. Moreover, the Heisenberg's uncertainty principle for the windowed fractional Fourier transform is obtained. Finally, one review of the uncertainty relations for the LCT and other transforms is listed in tables systematically for the first time.
引用
收藏
页码:392 / 402
页数:11
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