Suchergebnisse - "time-frequency"

Radar-based techniques for continuous monitoring of soil moisture and vegetation using time series analysis

Autoren: Mas i Méndez, Mireia

Weitere Verfasser: University/Department: Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions

Thesis Advisors: Fabregas Canovas, Francisco Javier

Quelle: TDX (Tesis Doctorals en Xarxa)

Schlagwörter: Synthetic Aperture Radar (SAR), High-temporal-resolution SAR, Ground-based SAR, Backscattering, Two-layer surface scattering model, Time-frequency analysis, Interferometric coherence, Polarimetric decompositions, Diurnal cycles, Land-atmosphere interactions, Short-term change detection, Environmental monitoring, Radar signal interpretation, Remote sensing, Time-series analysis, HydroSoil project, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació, Àrees temàtiques de la UPC::Enginyeria agroalimentària, 621.3 - Enginyeria elèctrica. Electrotècnia. Telecomunicacions, 633 - Cultius i produccions

Dateibeschreibung: application/pdf

Zugangs-URL: http://hdl.handle.net/10803/695702
https://dx.doi.org/10.5821/dissertation-2117-445577

Biosignal Sequence Real-time Prediction for Game Users Based on Features Fusion of Local-Global and Time-Frequency Domain

Autoren: Li, Rongyang Ding, Jianguo Ning, Huansheng et al.

Quelle: IEEE Transactions on Games. 17(3):797-812

Schlagwörter: Biosignal sequence prediction, Features fusion, Game users, Local-Global, Time-Frequency domain, Prediction models, Time domain analysis, Biosignals, Emotional experiences, Features fusions, Game user, Generalisation, Real-time prediction, Sequence prediction, Time frequency domain, Frequency domain analysis

Dateibeschreibung: electronic

Zugangs-URL: https://urn.kb.se/resolve?urn=urn:nbn:se:bth-27691
https://bth.diva-portal.org/smash/get/diva2:1950284/FULLTEXT01.pdf

Model-based analysis of sEMG signals using Stockwell transform features under varied muscle fiber composition and conduction velocity.

Autoren: G., Venugopal N., Sidharth Karthick, P. A.

Quelle: Medical & Biological Engineering & Computing. Nov2025, Vol. 63 Issue 11, p3381-3398. 18p.

Schlagwörter: *STATISTICS, ELECTROMYOGRAPHY, TIME-frequency analysis, MUSCLE contraction, SKELETAL muscle, ACTION potentials, MUSCLE physiology

Interconnectedness between cryptocurrencies and traditional financial assets: a multi-model time-frequency analysis.

Autoren: Nițoi, Mihai Stanciu, Cristian Valeriu Clichici, Dorina

Quelle: Applied Economics. Nov2025, p1-19. 19p. 9 Illustrations.

Schlagwörter: *CRYPTOCURRENCIES, *PORTFOLIO diversification, *INVESTMENT management, *FORECASTING, *FINANCIAL risk management, TIME-frequency analysis

Global linkages across sectors and frequency bands: a band spectral panel regression approach.

Autoren: Lyu, Jingjing Süssmuth, Bernd

Quelle: Review of World Economics. Nov2025, Vol. 161 Issue 4, p1421-1462. 42p.

Schlagwörter: *TIME series analysis, *INTERNATIONAL economic integration, TIME-frequency analysis, TIME, ECONOMIC conditions in China

Geografische Kategorien: CHINA

Joint inversion with prestack waveform and spectral information for layered media.

Autoren: Zheng-Yang Kuai Dan-Ping Cao Chao Jin

Quelle: Petroleum Science (KeAi Communications Co.). Oct2025, Vol. 22 Issue 10, p4065-4082. 18p.

Schlagwörter: *BAYESIAN analysis, TIME-frequency analysis, LAYER structure (Solids), GEOLOGICAL formations, ELASTICITY, THEORY of wave motion

Fundamental Trade-Offs in Monostatic ISAC: A Holistic Investigation Toward 6G

Autoren: Keskin, Musa Furkan Mojahedian, Mohammad Mahdi Lacruz, Jesus O. et al.

Quelle: Gemensam radar och kommunikation för nästa generations fordonsapplikationer Lokalisering och avkänning för perceptiva cellfria nätverk mot 6G 6G DISAC IEEE Transactions on Wireless Communications. 24(9):7856-7873

Schlagwörter: OFDM, spatial trade-off, LMMSE estimator, concurrent transmission, monostatic sensing, time-frequency trade-off, time-sharing transmission, ISAC

Dateibeschreibung: electronic

Zugangs-URL: https://research.chalmers.se/publication/548391
https://research.chalmers.se/publication/548391/file/548391_Fulltext.pdf

A time-causal and time-recursive analogue of the Gabor transform

Autoren: Lindeberg, Tony, Professor, 1964

Quelle: Covariant and invariant deep networks IEEE Transactions on Information Theory. 71(2):1450-1480

Schlagwörter: Time-frequency analysis, Gabor filter, Gabor transform, Time-causal, Time-recursive, Temporal scale, Scale covariance, Harmonic analysis, Signal processing, Datalogi, Computer Science

Dateibeschreibung: electronic

Zugangs-URL: https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-356929
https://doi.org/10.1109/tit.2024.3507879

Norm estimates for a broad class of modulation spaces, and continuity of Fourier type operators

Autoren: Toft, Joachim Pfeuffer, Christine Teofanov, Nenad

Quelle: Journal of Functional Analysis. 290(1)

Schlagwörter: time-frequency analysis, modulation spaces, wiener amalgam spaces, quasi-banach spaces, pseudo-differential operators, toeplitz operators, Mathematics, Matematik

Dateibeschreibung: electronic

Zugangs-URL: https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-141794
https://doi.org/10.1016/j.jfa.2025.111177

Time-frequency analysis of femtosecond CARS spectroscopy of N2 and O2 using the superlet transform.

Autoren: Feng, Duo Song, Yunfei Wang, Zanhao et al.

Quelle: Journal of Chemical Physics. 3/21/2025, Vol. 162 Issue 11, p1-8. 8p.

Schlagwörter: *RAMAN spectroscopy, *TIME-frequency analysis, *ENERGY transfer, *NITROGEN, *ATMOSPHERIC temperature, *MOLECULAR dynamics

The impact of global news items on bitcoin volatility.

Autoren: Blasco, Natividad Corredor, Pilar Satrústegui, Nerea

Quelle: Spanish Journal of Finance & Accounting / Revista Espanola de Financiacion y Contabilidad. Sep2025, Vol. 54 Issue 3, p375-395. 21p.

Schlagwörter: *INVESTORS, *PRICES, *COVID-19 pandemic, RUSSIAN invasion of Ukraine, 2022-, TIME-frequency analysis

Oil price shocks and the term structure of the US yield curve: a time–frequency analysis of spillovers and risk transmission.

Autoren: Umar, Zaghum Gubareva, Mariya Teplova, Tamara et al.

Quelle: Annals of Operations Research. Sep2025, Vol. 352 Issue 3, p363-387. 25p.

Schlagwörter: *YIELD curve (Finance), *RISK sharing, *PETROLEUM sales & prices, *ECONOMIC impact, *PORTFOLIO diversification, TIME-frequency analysis, WAVELETS (Mathematics)

Geografische Kategorien: UNITED States

The Financial Accelerator Mechanism: Time‐Varying Frequency‐Dependent Evidence From the C&I Loan Market.

Autoren: Gallegati, Marco Gaffeo, Edoardo

Quelle: International Journal of Finance & Economics. Aug2025, p1. 11p. 4 Illustrations.

Schlagwörter: *INFORMATION asymmetry, *COMMERCIAL loans, *CREDIT control, *ASSETS (Accounting), TIME-frequency analysis, FINANCIAL liberalization

Geografische Kategorien: UNITED States

Proactive product warranty service planning and control: unravelling the boons of customer-generated content and multi-frequency analyses.

Autoren: Nikseresht, Ali Shokouhyar, Sajjad Shokoohyar, Sina

Quelle: Production Planning & Control. Jul2025, Vol. 36 Issue 10, p1352-1379. 28p.

Schlagwörter: *WARRANTY, *REPAIR & maintenance services, *USER-generated content, TIME-frequency analysis, PREDICTION models

Reviews & Products: TWITTER (Web resource)

Spectro-temporal analysis of ultra-fast radio bursts using per-channel arrival times Open Access.

Autoren: Chamma, Mohammed A Pop, Victor Rajabi, Fereshteh

Quelle: Monthly Notices of the Royal Astronomical Society. Dec2025, Vol. 544 Issue 2, p2537-2556. 20p.

Schlagwörter: *TIME-frequency analysis, *SPECTRUM analysis, *ASTROPHYSICS

SATF: a flight trajectory prediction method incorporating spatial awareness and time–frequency transformation.

Autoren: Zhu, Jizhao Zhuang, Zhuang Han, Bing et al.

Quelle: International Journal of Digital Earth. Dec2025, Vol. 18 Issue 1, p1-28. 28p.

Schlagwörter: *AIR traffic control, *TIME-frequency analysis, *FLIGHT planning (Aeronautics), *SPATIAL orientation, *SPATIOTEMPORAL processes, *AUTOMATIC dependent surveillance-broadcast, *DEEP learning

Multisynchrosqueezing optimized S-transform and its application in gas reservoir identification.

Autoren: Shirazi, Mahmoud Roshandel Kahoo, Amin Radad, Mohammad et al.

Quelle: Acta Geophysica. Dec2025, Vol. 73 Issue 6, p5719-5737. 19p.

Schlagwörter: *GAS reservoirs, *TIME-frequency analysis, *SEISMIC waves

Motion Artifacts Removal from Measured Arterial Pulse Signals at Rest: A Generalized SDOF-Model-Based Time–Frequency Method.

Autoren: Hao, Zhili¹ (AUTHOR)

Quelle: Sensors (14248220). Nov2025, Vol. 25 Issue 21, p6808. 33p.

Schlagwörter: *TIME-frequency analysis, *SINGLE-degree-of-freedom systems, *PULSATILE flow, *HEART beat, *TACTILE sensors, *PHYSIOLOGY, *PHOTOPLETHYSMOGRAPHY

Time-Frequency-Based Separation of Earthquake and Noise Signals on Real Seismic Data: EMD, DWT and Ensemble Classifier Approaches.

Autoren: Erdoğan, Yunus Emre Narin, Ali

Quelle: Sensors (14248220). Nov2025, Vol. 25 Issue 21, p6671. 26p.

Schlagwörter: *TIME-frequency analysis, *FEATURE extraction, *SIGNAL separation, *WAVELETS (Mathematics), *RANDOM forest algorithms, *SIGNAL detection, *MICROSEISMS, *ADAPTIVE signal processing

Quantitative uncertainty principles associated with the Laguerre wavelet transform and signal recovery.

Autoren: Sraieb, Nadia¹ (AUTHOR) nadia.sraieb@fsg.rnu.tn

Quelle: Integral Transforms & Special Functions. Nov2025, Vol. 36 Issue 11, p921-939. 19p.

Schlagwörter: *TIME-frequency analysis, *SIGNAL reconstruction, *WAVELETS (Mathematics), *HEISENBERG uncertainty principle, *UNCERTAINTY (Information theory)

People: HEISENBERG, Werner, 1901-1976