Search Results - "GNSS reflectometry (GNSS-R)"

Neural network-based data processing for satellite imagery in small satellite earth observation missions

Authors: Llaveria Godoy, David

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

Thesis Advisors: Camps Carmona, Adriano José

Source: TDX (Tesis Doctorals en Xarxa)

Subject Terms: CubeSatsEarth Observation (EO), Remote Sensing, Data Processing, Onboard Processing, Neural Networks, Hyperspectral Imaging, Band Selection, Sea Ice Monitoring, GNSS-Reflectometry (GNSS-R), L-band Radiometry, Image Deblurring, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació, 621.3 - Enginyeria elèctrica. Electrotècnia. Telecomunicacions

File Description: application/pdf

Access URL: http://hdl.handle.net/10803/695367
https://dx.doi.org/10.5821/dissertation-2117-442913

Contributions to RFI detection, mitigation, and excision for GNSS receivers and spaceborne microwave radiometers

Authors: Pérez Portero, Adrián

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

Thesis Advisors: Camps Carmona, Adriano José, Hyuk, Park

Source: TDX (Tesis Doctorals en Xarxa)

Subject Terms: Radio Frequency Interference (RFI), GNSS Reflectometry (GNSS-R), Microwave Radiometry, Signal Processing, Remote Sensing, Polarimetric Detection, FPGA Implementation, Space-Qualified Systems, SMAP-R Mission, Bistatic Radar, Interference Mitigation, Earth Observation, Scattering Models, Real-Time Processing, Software-Defined Radio, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació, 621.3 - Enginyeria elèctrica. Electrotècnia. Telecomunicacions

File Description: application/pdf

Access URL: http://hdl.handle.net/10803/694489
https://dx.doi.org/10.5821/dissertation-2117-430037

Toward the Exploitation of HydroGNSS Coherent Channel: High Sampling Rate Products

Authors: Jilun Peng Estel Cardellach Weiqiang Li et al.

Contributors: Jilun Peng Estel Cardellach Weiqiang Li et al.

Source: Digital.CSIC. Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)

Subject Terms: GNSS reflectometry (GNSS-R), Reflectometry, Complex signal, Normalized amplitude (NA), Coherent channel, HydroGNSS, High sampling rate reflectivity (HSRR)

File Description: application/pdf

Access URL: https://api.elsevier.com/content/abstract/scopus_id/105003088108
http://hdl.handle.net/10261/394408

Comparative Analysis of SWH Retrieval Between BDS-R and GPS-R Utilizing FY-3E/GNOS-II Data

Authors: Hui Yu Qifei Du Junming Xia et al.

Source: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 18, Pp 6520-6531 (2025)

Subject Terms: Ocean engineering, Global Navigation Satellite System (GNSS) reflectometry (GNSS-R), QC801-809, significant wave height (SWH), Geophysics. Cosmic physics, Fengyun-3E (FY-3E) satellite, Beidou satellite, TC1501-1800, GNOS-II

Access URL: https://doaj.org/article/90d60ae712ae440ab0d5684b581ddbd0

Improving CYGNSS-Based Soil Moisture Coverage Through Autocorrelation and Machine Learning-Aided Method

Authors: Yan Jia Zhiyu Xiao Shuanggen Jin et al.

Source: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 12554-12566 (2024)

Subject Terms: gap-filling method, QC801-809, Geophysics. Cosmic physics, 0211 other engineering and technologies, soil moisture (SM), 02 engineering and technology, 01 natural sciences, Cyclone global navigation satellite system (CYGNSS), GNSS reflectometry (GNSS-R), Ocean engineering, 13. Climate action, soil moisture active passive (SMAP), Cyclone Global Navigation Satellite System, (CYGNSS), GNSS Reflectometry (GNSS-R), Soil Moisture (SM), Soil Moisture Active Passive (SMAP), Gap-filling Method, TC1501-1800, 0105 earth and related environmental sciences

File Description: application/pdf

Access URL: https://doaj.org/article/75d7089e19d64143aa4bea40414f05ca

Simulation and Validation of Real-Time UAV-Based GNSS-R Altimetry Across Diverse Landforms

Authors: Ziyin Xu Xianyi Wang Junming Xia et al.

Source: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 18, Pp 22151-22164 (2025)

Subject Terms: Global navigation satellite system (GNSS) signal simulation, GNSS reflectometry (GNSS-R), real-time GNSS-R altimetry, terrain modeling, uncrewed aerial vehicle (UAV), Ocean engineering, TC1501-1800, Geophysics. Cosmic physics, QC801-809

File Description: electronic resource

Relation: https://ieeexplore.ieee.org/document/11134769/; https://doaj.org/toc/1939-1404; https://doaj.org/toc/2151-1535

Access URL: https://doaj.org/article/ddf38c2f549e43a794832b2e531a1ac4

Comparison of a Semiempirical Algorithm and an Artificial Neural Network for Soil Moisture Retrieval Using CYGNSS Reflectometry Data

Authors: Hamed Izadgoshasb Emanuele Santi Flavio Cordari et al.

Source: Remote Sensing, Vol 17, Iss 21, p 3636 (2025)

Subject Terms: GNSS reflectometry (GNSS-R), soil moisture, CYGNSS, semiempirical model, ANN, Science

File Description: electronic resource

Relation: https://www.mdpi.com/2072-4292/17/21/3636; https://doaj.org/toc/2072-4292

Access URL: https://doaj.org/article/215233da094f4e8b9232333106a0f1a1

Land Remote Sensing Applications Using Spaceborne GNSS Reflectometry: A Comprehensive Overview

Authors: Jinwei Bu Qiulan Wang Ziyi Wang et al.

Source: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 12811-12841 (2024)

Subject Terms: Disaster warning, ecological protection, QC801-809, Geophysics. Cosmic physics, 0211 other engineering and technologies, 0207 environmental engineering, 02 engineering and technology, spaceborne GNSS reflectometry (GNSS-R), 15. Life on land, land remote sensing (RS), 12. Responsible consumption, Ocean engineering, 13. Climate action, resource management, TC1501-1800, environmental monitoring

Access URL: https://doaj.org/article/84a3527ace914d678bbc3ee719f1aa22

The 2021 La Palma volcanic eruption and its impact on ionospheric scintillation as measured from GNSS reference stations, GNSS-R and GNSS-RO

Authors: C. Molina B.-E. Boudriki Semlali G. González-Casado et al.

Contributors: C. Molina B.-E. Boudriki Semlali G. González-Casado et al.

Source: Digital.CSIC. Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Natural Hazards and Earth System Sciences, Vol 23, Pp 3671-3684 (2023)

Subject Terms: GNSS reference monitoring, QE1-996.5, GNSS radio occultation (GNSS-RO), Artificial satellites, Cumbre Vieja volcano, Ionosfera, Terratrèmols, Geology, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços, Environmental technology. Sanitary engineering, 01 natural sciences, Environmental sciences, GNSS reflectometry (GNSS-R), Satèl·lits artificials, 13. Climate action, Ionospheric scintillation, Geography. Anthropology. Recreation, Earthquakes, GE1-350, Ionosphere, TD1-1066, La Palma volcano, 0105 earth and related environmental sciences

File Description: application/pdf

Access URL: http://hdl.handle.net/10261/348887
https://nhess.copernicus.org/articles/23/3671/2023/
https://doaj.org/article/eaf33de39fee4e91a1df9b1627c13b49
https://repository.publisso.de/resource/frl:6482201

Combining Cygnss and Machine Learning for Soil Moisture and Forest Biomass Retrieval in View of the ESA Scout Hydrognss Mission

Authors: Santi E. Clarizia M. P. Comite D. et al.

Source: IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium. :7433-7436

Subject Terms: 0211 other engineering and technologies, 02 engineering and technology, CyGNSS, Forest Aboveground Biomass, GNSS reflectometry (GNSS-R), Machine Learning, Soil Moisture, 01 natural sciences, 0105 earth and related environmental sciences

Access URL: https://hdl.handle.net/11573/1662604
https://doi.org/10.1109/IGARSS46834.2022.9884738

Global soil moisture mapping at 5 km by combining GNSS reflectometry and machine learning in view of HydroGNSS

Authors: Emanuele Santi Davide Comite Laura Dente et al.

Source: Science of Remote Sensing, Vol 10, Iss , Pp 100177- (2024)

Subject Terms: GNSS reflectometry (GNSS-R), CyGNSS, Soil moisture, Machine learning, Physical geography, GB3-5030, Science

File Description: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S2666017224000610; https://doaj.org/toc/2666-0172

Access URL: https://doaj.org/article/9a535295c09346eca7d204b8e02ce902

Multiresolution soil moisture products based on a spatially adaptive estimation model and CYGNSS data

Authors: Yan Jia Jiaqi Zou Shuanggen Jin et al.

Source: GIScience & Remote Sensing, Vol 61, Iss 1 (2024)

Subject Terms: Cyclone global navigation satellite system (CYGNSS), GNSS-reflectometry (GNSS-R), soil moisture (SM), soil moisture active passive (SMAP), downscaling, Mathematical geography. Cartography, GA1-1776, Environmental sciences, GE1-350

File Description: electronic resource

Relation: https://doaj.org/toc/1548-1603; https://doaj.org/toc/1943-7226

Access URL: https://doaj.org/article/b0ad1af127b54667b8c67ac5173aa757

Remote Sensing of Precipitation Using Reflected GNSS Signals: Response Analysis of Polarimetric Observations

Authors: Milad Asgarimehr Mostafa Hoseini Maximilian Semmling et al.

Contributors: Milad Asgarimehr Mostafa Hoseini Maximilian Semmling et al.

Source: Digital.CSIC. Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
IEEE Transactions on Geoscience and Remote Sensing

Subject Terms: Salinity, Teledetecció, surface-roughening, Rain, 0211 other engineering and technologies, GNSS-reflectometry (GNSS-R), 02 engineering and technology, Fjernmåling, Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica [Àrees temàtiques de la UPC], 01 natural sciences, Wind speed, Remote Sensing, Sistema de posicionament global, Surface roughness, Global Positioning System, Sea measurements, Global navigation satellite systems, rain, Salinitat, Salinity (geophysical), 0105 earth and related environmental sciences, polarimetric observations, Sea surface, GNSS, sea surface salinity (SSS), Remote sensing, Global navitagion satellite system, 6. Clean water, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica, 13. Climate action, Surface-roughening, Polarimetric observations, Sea surface salinity (SSS)

File Description: application/pdf

Access URL: https://upcommons.upc.edu/bitstream/2117/348529/1/IEEE_Transactions_on_Geoscience_and_Remote_Sensing.pdf
http://hdl.handle.net/10261/270904
https://upcommons.upc.edu/bitstream/2117/348529/1/IEEE_Transactions_on_Geoscience_and_Remote_Sensing.pdf
https://gfzpublic.gfz-potsdam.de/pubman/faces/ViewItemOverviewPage.jsp?itemId=item_5006812_2
https://upcommons.upc.edu/handle/2117/348529
https://research.chalmers.se/en/publication/523329
https://elib.dlr.de/141442/
https://hdl.handle.net/11250/2989274
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5006812

A New Vegetation Observable Derived from Spaceborne GNSS-R and Its Application to Vegetation Water Content Retrieval

Authors: Fade Chen Lilong Liu Fei Guo et al.

Source: Remote Sensing, Vol 16, Iss 5, p 931 (2024)

Subject Terms: cyclone global navigation satellite system (CYGNSS), vegetation water content (VWC), soil moisture, spaceborne GNSS-reflectometry (GNSS-R), Science

Relation: https://www.mdpi.com/2072-4292/16/5/931; https://doaj.org/toc/2072-4292; https://doaj.org/article/41058e22f1cb47c5bbbe5a695b76ffa3

Availability: https://doi.org/10.3390/rs16050931
https://doaj.org/article/41058e22f1cb47c5bbbe5a695b76ffa3

High-Rate Altimetry in SNR-Based GNSS-R: Proof-of-Concept of a Synthetic Vertical Array

Authors: M. K. Yamawaki F. Geremia-Nievinski J. F. Galera Monico et al.

Contributors: M. K. Yamawaki F. Geremia-Nievinski J. F. Galera Monico et al.

Source: Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP

Subject Terms: GNSS reflectometry (GNSS-R), Satellite antennas, Signal to noise ratio, Satellites, Global Navigation Satellite System (GNSS), Antennas, Global navigation satellite system, Altimetry, Surface waves, 01 natural sciences, 0105 earth and related environmental sciences

Access URL: https://www.techrxiv.org/articles/preprint/High-rate_altimetry_in_SNR-based_GNSS-R_Proof-of-concept_of_a_synthetic_vertical_array/14186930/files/26751044.pdf
https://ieeexplore.ieee.org/document/9395698
https://www.techrxiv.org/articles/preprint/High-rate_altimetry_in_SNR-based_GNSS-R_Proof-of-concept_of_a_synthetic_vertical_array/14186930

Integration of Smartphones Into Small Unmanned Aircraft Systems to Sense Water in Soil by Using Reflected GPS Signals

Authors: Mehmet Kurum Md. Mehedi Farhad Ali Cafer Gurbuz

Source: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 1048-1059 (2021)

Subject Terms: signals of opportunity, QC801-809, Geophysics. Cosmic physics, 0211 other engineering and technologies, 02 engineering and technology, GNSS raw data, 01 natural sciences, 7. Clean energy, smartphones, GNSS reflectometry (GNSS-R), Ocean engineering, Android, TC1501-1800, 0105 earth and related environmental sciences

Access URL: https://ieeexplore.ieee.org/ielx7/4609443/9314330/09272854.pdf
https://doaj.org/article/df112fcca2494242834342071d0eef52
https://ieeexplore.ieee.org/document/9272854/
https://doi.org/10.1109/JSTARS.2020.3041162
https://dblp.uni-trier.de/db/journals/staeors/staeors14.html#KurumFG21

Potential of GNSS Reflectometry for Freeze-Thaw Monitoring: a Study of Techdemosat-1 Data

Authors: Comite D. Dente L. Cenci L. et al.

Source: IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium. :6266-6269

Subject Terms: 13. Climate action, bistatic radars, Freeze-thaw, GNSS reflectometry (GNSS-R), TechDemoSat-1 mission, 0202 electrical engineering, electronic engineering, information engineering, 02 engineering and technology, 7. Clean energy

File Description: application/pdf

Access URL: https://dblp.uni-trier.de/db/conf/igarss/igarss2020.html#ComiteDCGCP20
https://hdl.handle.net/11573/1542580
https://doi.org/10.1109/IGARSS39084.2020.9324396

Monitoring Freeze-Thaw State by Means of GNSS Reflectometry: An Analysis of TechDemoSat-1 Data

Authors: Davide Comite Luca Cenci Andreas Colliander et al.

Source: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 13, Pp 2996-3005 (2020)

Subject Terms: QC801-809, Geophysics. Cosmic physics, 0211 other engineering and technologies, 02 engineering and technology, TechDemoSat-1 (TDS-1) mission, 01 natural sciences, 7. Clean energy, GNSS reflectometry (GNSS-R), Ocean engineering, Bistatic radars, 13. Climate action, bistatic radars, freeze thaw (FT), global positioning system (GPS), soil moisture active passive (SMAP), Freeze thaw (FT), TC1501-1800, 0105 earth and related environmental sciences

File Description: application/pdf

Access URL: https://ieeexplore.ieee.org/ielx7/4609443/8994817/09103273.pdf
https://doaj.org/article/f1dbfa80c8ba4eabafa7ed5dcb1c92d1
http://ui.adsabs.harvard.edu/abs/2020IJSTA..13.2996C/abstract
https://dblp.uni-trier.de/db/journals/staeors/staeors13.html#ComiteCCP20
https://ieeexplore.ieee.org/document/9103273
https://hdl.handle.net/11573/1443339
https://doi.org/10.1109/JSTARS.2020.2986859

Implementation of a Testbed for GNSS-R Payload Performance Evaluation

Authors: Adrian Perez Joan Francesc Munoz-Martin Jorge Querol et al.

Contributors: Adrian Perez Joan Francesc Munoz-Martin Jorge Querol et al.

Source: Digital.CSIC. Repositorio Institucional del CSIC
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 13, Pp 2708-2715 (2020)

Subject Terms: Radiofrequency interference (RFI), Sistema global per a comunicacions mòbils, Geophysics. Cosmic physics, 0211 other engineering and technologies, 02 engineering and technology, 01 natural sciences, Software-defined radio (SDR), Sistema de posicionament global, Software-defined radio(SDR), Global Positioning System, Global Navigation Satellite System (GNSS), Àrees temàtiques de la UPC::Enginyeria de la telecomunicació, TC1501-1800, software-defined radio (SDR), 0105 earth and related environmental sciences, QC801-809, radio-frequency interference (RFI), Enginyeria de la telecomunicació [Àrees temàtiques de la UPC], Satellite System (GNSS), simulation, Earth Observation (EO), Global Navigation, Ocean engineering, GNSS-Reflectometry (GNSS-R), Global system for mobile communications, Earth Observatio (EO), Simulation

File Description: application/pdf

Access URL: https://ieeexplore.ieee.org/ielx7/4609443/8994817/09103266.pdf
http://hdl.handle.net/10261/236313
http://hdl.handle.net/2117/329874
https://doaj.org/article/66d74f7935434a3885817b98f68da753
http://digital.csic.es/bitstream/10261/236313/1/Implementation_of_a_Testbed_for_GNSS-R.pdf
https://digital.csic.es/handle/10261/236313
http://ui.adsabs.harvard.edu/abs/2020IJSTA..13.2708P/abstract
https://ieeexplore.ieee.org/document/9103266
https://upcommons.upc.edu/handle/2117/329874
https://dblp.uni-trier.de/db/journals/staeors/staeors13.html#PerezMQPC20
https://hdl.handle.net/2117/329874
https://doi.org/10.1109/jstars.2020.2997717

Multimodal Deep Learning for Heterogeneous GNSS-R Data Fusion and Ocean Wind Speed Retrieval

Authors: Xiaohan Chu Jie He Hongqing Song et al.

Source: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 13, Pp 5971-5981 (2020)

Subject Terms: Ocean engineering, multimodal deep learning, QC801-809, Delay–Doppler map (DDM), Geophysics. Cosmic physics, 0211 other engineering and technologies, GNSS-reflectometry (GNSS-R), 02 engineering and technology, ocean surface wind retrieval, TC1501-1800, 01 natural sciences, 0105 earth and related environmental sciences

Access URL: https://ieeexplore.ieee.org/ielx7/4609443/8994817/09165055.pdf
https://doaj.org/article/08576b13a39d496faf21c78e1d846cc8
https://ui.adsabs.harvard.edu/abs/2020IJSTA..13.5971C/abstract
https://ieeexplore.ieee.org/abstract/document/9165055/similar
https://dblp.uni-trier.de/db/journals/staeors/staeors13.html#ChuHSQSBLW20
https://doi.org/10.1109/JSTARS.2020.3010879