Výsledky vyhľadávania - "SYNTHETIC aperture radar"

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

Autori: Mas i Méndez, Mireia

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

Thesis Advisors: Fabregas Canovas, Francisco Javier

Zdroj: TDX (Tesis Doctorals en Xarxa)

Predmety: 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

Popis súboru: application/pdf

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

Development of accelerated fully focused SAR altimetry algorithms

Autori: Hernández Burgos, Sergi

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

Thesis Advisors: Broquetas Ibars, Antoni, Gibert Gutiérrez, Ferran

Zdroj: TDX (Tesis Doctorals en Xarxa)

Predmety: Radar Altimetry, Ocean Surface Topography, Synthetic Aperture Radar (SAR), Fully Focused SAR (FF-SAR), Omega-K Closed-Form Algorithm, Accelerated Back-projection Algorithm, Sub-looked Back-projection Algorithm, Computational Efficiency, GPU Processing, Delay/Doppler Processing, Significant Wave Height (SWH), Ocean Waves, Satellite Missions, Sea Level Monitoring, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació, 621.3 - Enginyeria elèctrica. Electrotècnia. Telecomunicacions, 55 - Geologia. Meteorologia

Popis súboru: application/pdf

Prístupová URL adresa: http://hdl.handle.net/10803/695129
https://dx.doi.org/10.5821/dissertation-2117-440603

Ground-based GEOSAR system using DVB-S/S2 signals of opportunity and FPGA based correlators

Autori: Carreño Megias, Xavier

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

Thesis Advisors: Broquetas Ibars, Antoni

Zdroj: TDX (Tesis Doctorals en Xarxa)

Predmety: Synthetic aperture Radar(SAR), GEOSAR, FPGA, digital correlators, ground-based bistatic radar, passive radar, orbital determination, Signals of opportunity(SoOp), Àrees temàtiques de la UPC::Enginyeria de la telecomunicació, 621.3 - Enginyeria elèctrica. Electrotècnia. Telecomunicacions

Popis súboru: application/pdf

Prístupová URL adresa: http://hdl.handle.net/10803/694900
https://dx.doi.org/10.5821/dissertation-2117-433847

一种基于奇异值分解和最小熵反褶积的后向投影改进方法.

Alternate Title: An Improved Back Projection Method Based on Singular Value Decomposition and Minimum Entropy Deconvolution.

Autori: 牛岩 聂伟 周牧 a ďalší

Zdroj: Telecommunication Engineering. 11/28/2025, Vol. 65 Issue 11, p1912-1920. 9p.

Predmety: SINGULAR value decomposition, SYNTHETIC aperture radar, MINIMUM entropy method, NOISE control, SIGNAL-to-noise ratio, SIGNAL reconstruction, IMAGE enhancement (Imaging systems), ELECTRIC filters

Classification of PolSAR data with the Complex Riesz distribution.

Autori: Kammoun, Rayhan Kessentini, Sameh Zine, Raoudha

Zdroj: Communications in Statistics: Theory & Methods. 2025, Vol. 54 Issue 19, p6191-6218. 28p.

Predmety: *DISTRIBUTION (Probability theory), *STOCHASTIC analysis, SYNTHETIC aperture radar, EXPECTATION-maximization algorithms, CLASSIFICATION, MAXIMUM likelihood statistics, FEATURE extraction, REMOTE sensing

MSPB: intelligent SAR despeckling using wavelet thresholding and bilateral filter for big visual radar data restoration and provisioning quality of experience in real-time remote sensing.

Autori: Singh, Prabhishek Shankar, Achyut Diwakar, Manoj a ďalší

Zdroj: Environment, Development & Sustainability. Oct2025, Vol. 27 Issue 10, p24751-24781. 31p.

Predmety: SYNTHETIC aperture radar, REMOTE sensing, USER experience, IMAGE processing, NOISE control, SPECKLE interference, IMAGE quality analysis, ADAPTIVE filters

Relating forest biomass to TanDEM-X mean phase height

Autori: Askne, Jan, 1936

Zdroj: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 18:24039-24050

Predmety: TanDEM-X, Above-ground biomass, interferometric synthetic aperture radar, boreal forest, forest height, forest structure

Popis súboru: electronic

Prístupová URL adresa: https://research.chalmers.se/publication/548243
https://research.chalmers.se/publication/548243/file/548243_Fulltext.pdf

Resolution Equation for SAR Systems Synthesizing Circular Aperture

Autori: Vu, Viet Thuy Ivanenko, Yevhen Lindberg, Vanja a ďalší

Zdroj: IEEE Access. 13:96434-96444

Predmety: Mathematical models, Apertures, Synthetic aperture radar, Spatial resolution, Azimuth, Spaceborne radar, Radar imaging, Geometry, Bandwidth, Radar tracking, SAR, circular aperture, GBP, resolution

Popis súboru: electronic

Prístupová URL adresa: https://urn.kb.se/resolve?urn=urn:nbn:se:bth-28226
https://doi.org/10.1109/ACCESS.2025.3572523

Performance and evaluation of CNN, ML SAR automatic target recognition system on MSTAR data.

Autori: Radhi, Ahmed M. H. Ali, Ekbal Karee, Hatam

Zdroj: AIP Conference Proceedings. 2025, Vol. 3350 Issue 1, p1-8. 8p.

Predmety: *DEEP learning, *SYNTHETIC aperture radar, *AUTOMATIC target recognition, *CLASSIFICATION, *CONVOLUTIONAL neural networks, *MACHINE learning

Recognition for targets type of synthetic aperture radar imagery using deep learning methods.

Autori: Radhi, Ahmed M. Ali, Ekbal H. Kadhom, Hatam K.

Zdroj: AIP Conference Proceedings. 2025, Vol. 3350 Issue 1, p1-8. 8p.

Predmety: *SYNTHETIC aperture radar, *DEEP learning, *SYSTEMS design, *SCIENTIFIC computing, *EVALUATION methodology, *AUTOMATIC target recognition

INDIA'S SPACE ODYSSEY: FROM MILESTONES TO THE SPACE FRONTIER PLANS.

Autori: JHA, MANISH KUMAR

Zdroj: SP's Aviation. 2025, Vol. 28 Issue 8, p6-9. 4p.

Predmety: SYNTHETIC aperture radar, SPACE stations, ASTRONAUTICS & state

Korporácia: INDIAN Space Research Organisation , UNITED States. National Aeronautics & Space Administration

Navigator Notes: Editorial Highlights from the Editor-in-Chief.

Autori: Langley, Richard B. lang@unb.ca

Zdroj: Navigation (Institute of Navigation). Winter2025, Vol. 72 Issue 4, p1-8. 8p.

Predmety: *GLOBAL Positioning System, *SYNTHETIC aperture radar

Robust ground control point localization from multi-aspect stereo SAR observations using Chinese commercial satellite SVN-2.

Autori: Mu, Minzheng Li, Zhiwei Zhang, Heng a ďalší

Zdroj: International Journal of Digital Earth. Dec2025, Vol. 18 Issue 1, p1-17. 17p.

Predmety: *SYNTHETIC aperture radar, *CALIBRATION, *ROBUST statistics, *GEOMETRIC shapes, *GEOGRAPHICAL positions, *ARTIFICIAL satellites, *MEASUREMENT errors

Identification of active gully erosion sites on the loess plateau based on terrain profile lines.

Autori: He, Shan Li, Jilong Wu, Han a ďalší

Zdroj: International Journal of Digital Earth. Dec2025, Vol. 18 Issue 1, p1-22. 22p.

Predmety: *EROSION, *SYNTHETIC aperture radar, *DIGITAL elevation models, *RELIEF models, *HILBERT-Huang transform, *RADAR interferometry

Geografický termín: LOESS Plateau (China)

Forward simulation of thin ice backscatter mechanism in the Bohai Sea region based on the MSIB and SMRT coupling model.

Autori: Wang, Zhe Zhang, Hong Xu, Lu a ďalší

Zdroj: International Journal of Digital Earth. Dec2025, Vol. 18 Issue 1, p1-25. 25p.

Predmety: *SYNTHETIC aperture radar, *SEA ice, *REMOTE sensing, *EMPIRICAL research, *SEAWATER, *BACKSCATTERING, *STATISTICAL models, *ICE mechanics

Geografický termín: BO Hai (China), CHINA

Validating and enhancing data-driven landslide susceptibility prediction by model explanation and MT-InSAR techniques.

Autori: Yu, Miao Chen, Li Fan, Xuanmei a ďalší

Zdroj: International Journal of Digital Earth. Dec2025, Vol. 18 Issue 1, p1-22. 22p.

Predmety: *LANDSLIDE hazard analysis, *SYNTHETIC aperture radar, *RADAR interferometry, *EMPIRICAL research, *LAND subsidence, *ENSEMBLE learning

Geografický termín: HONG Kong (China)

A multi-scale enhanced feature fusion model for aircraft detection from SAR images.

Autori: Zhou, Guoqing Zhang, Ziqi Wang, Feng a ďalší

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

Predmety: *SYNTHETIC aperture radar, *DETECTION algorithms, *FEATURE extraction, *STATISTICAL accuracy, *OBJECT recognition (Computer vision), *MULTIPLE scale method

Geolocation error compensation method for geocoded SAR images using pixel-offset series without control points.

Autori: Liu, Liqun Li, Zhiwei Zhu, Yan a ďalší

Zdroj: International Journal of Digital Earth. Dec2025, Vol. 18 Issue 1, p1-20. 20p.

Predmety: *LOCATION data, *SYNTHETIC aperture radar, *CALIBRATION

Robust SAR-assisted cloud removal via supervised align-guided fusion and bidirectional hybrid reconstruction.

Autori: Wang, Anling Xu, Kai Wang, Wenxin a ďalší

Zdroj: International Journal of Digital Earth. Dec2025, Vol. 18 Issue 1, p1-23. 23p.

Predmety: *SYNTHETIC aperture radar, *IMAGE reconstruction, *SIGNAL-to-noise ratio, *IMAGE processing, *REMOTE sensing, *OPTICAL images

Large-scale hybrid mission scheduling for LuTan-1 satellites using sparse evolutionary algorithm.

Autori: Liu, Wan Zhang, Dexin Tian, Yuan a ďalší

Zdroj: Acta Astronautica. Dec2025, Vol. 237, p395-408. 14p.

Predmety: *SYNTHETIC aperture radar, *EVOLUTIONARY algorithms, *OPTIMIZATION algorithms, *MULTI-objective optimization, *RESOURCE allocation

Geografický termín: CHINA