61 resultados para Shift operations
Filtro por publicador
- JISC Information Environment Repository (1)
- Repository Napier (4)
- Aberystwyth University Repository - Reino Unido (1)
- Academic Research Repository at Institute of Developing Economies (2)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
- Adam Mickiewicz University Repository (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (3)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (9)
- Applied Math and Science Education Repository - Washington - USA (2)
- Aquatic Commons (19)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
- Archive of European Integration (61)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (1)
- Avian Conservation and Ecology - Eletronic Cientific Hournal - Écologie et conservation des oiseaux: (2)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (7)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (13)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (1)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (57)
- Boston University Digital Common (1)
- Brock University, Canada (8)
- Bucknell University Digital Commons - Pensilvania - USA (1)
- CaltechTHESIS (4)
- Cambridge University Engineering Department Publications Database (65)
- CentAUR: Central Archive University of Reading - UK (48)
- Central European University - Research Support Scheme (3)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (73)
- Clark Digital Commons--knowledge; creativity; research; and innovation of Clark University (1)
- Cochin University of Science & Technology (CUSAT), India (9)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (37)
- CUNY Academic Works (2)
- Dalarna University College Electronic Archive (5)
- Deakin Research Online - Australia (85)
- Department of Computer Science E-Repository - King's College London, Strand, London (1)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
- Digital Commons - Michigan Tech (4)
- Digital Commons @ Winthrop University (2)
- Digital Peer Publishing (3)
- DigitalCommons@The Texas Medical Center (10)
- DigitalCommons@University of Nebraska - Lincoln (3)
- Diposit Digital de la UB - Universidade de Barcelona (1)
- Duke University (2)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (4)
- Greenwich Academic Literature Archive - UK (5)
- Helda - Digital Repository of University of Helsinki (2)
- Indian Institute of Science - Bangalore - Índia (61)
- Instituto Politécnico do Porto, Portugal (4)
- Massachusetts Institute of Technology (2)
- Memoria Académica - FaHCE, UNLP - Argentina (4)
- National Center for Biotechnology Information - NCBI (7)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (9)
- Publishing Network for Geoscientific & Environmental Data (8)
- QSpace: Queen's University - Canada (1)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (106)
- Queensland University of Technology - ePrints Archive (106)
- RDBU - Repositório Digital da Biblioteca da Unisinos (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (7)
- Repositório Institucional da Universidade de Aveiro - Portugal (2)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (42)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (3)
- SAPIENTIA - Universidade do Algarve - Portugal (1)
- School of Medicine, Washington University, United States (1)
- South Carolina State Documents Depository (1)
- The Scholarly Commons | School of Hotel Administration; Cornell University Research (1)
- Universidad Autónoma de Nuevo León, Mexico (3)
- Universidad de Alicante (1)
- Universidad del Rosario, Colombia (4)
- Universidad Politécnica de Madrid (19)
- Universidade de Lisboa - Repositório Aberto (1)
- Universidade Federal do Rio Grande do Norte (UFRN) (1)
- Universidade Metodista de São Paulo (1)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (4)
- Université de Lausanne, Switzerland (4)
- Université de Montréal, Canada (6)
- University of Connecticut - USA (3)
- University of Queensland eSpace - Australia (1)
- University of Southampton, United Kingdom (1)
- WestminsterResearch - UK (15)
Resumo:
We address the problem of phase retrieval from Fourier transform magnitude spectrum for continuous-time signals that lie in a shift-invariant space spanned by integer shifts of a generator kernel. The phase retrieval problem for such signals is formulated as one of reconstructing the combining coefficients in the shift-invariant basis expansion. We develop sufficient conditions on the coefficients and the bases to guarantee exact phase retrieval, by which we mean reconstruction up to a global phase factor. We present a new class of discrete-domain signals that are not necessarily minimum-phase, but allow for exact phase retrieval from their Fourier magnitude spectra. We also establish Hilbert transform relations between log-magnitude and phase spectra for this class of discrete signals. It turns out that the corresponding continuous-domain counterparts need not satisfy a Hilbert transform relation; notwithstanding, the continuous-domain signals can be reconstructed from their Fourier magnitude spectra. We validate the reconstruction guarantees through simulations for some important classes of signals such as bandlimited signals and piecewise-smooth signals. We also present an application of the proposed phase retrieval technique for artifact-free signal reconstruction in frequency-domain optical-coherence tomography (FDOCT).