Showing 2,341 - 2,360 results of 2,648 for search '"satellites"', query time: 0.07s Refine Results
  1. 2341

    SpaceCAM: A 16 nm FinFET Low-Power Soft-Error Tolerant TCAM Design for Space Communication Applications by Itay Merlin, Benjamin Zambrano, Marco Lanuzza, Alexander Fish, Avner Haran, Leonid Yavits

    Published 2025-01-01
    “…The Ternary Content Addressable Memory (TCAM) is a crucial component of satellite communication systems. Space-oriented TCAMs face unique challenges, as they must operate within a very limited energy budget and are susceptible to high Soft Error Rates (SER) due to ionizing particle radiation. …”
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  2. 2342

    Análise da dinâmica temporal da cobertura vegetal na microrregião de Umarizal (2000 a 2022), semiárido do Rio Grande do Norte, Brasil by Islânia dos Santos Nunes, Alfredo Marcelo Grigio, Marco Antônio Diodato

    Published 2024-10-01
    “…The methodological procedures used were satellite images from the Landsat series, specifically Landsat 5, Landsat 8, and Landsat 9, for both the dry and rainy periods of the years 2000, 2007, 2014, 2017, and 2022. …”
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  3. 2343

    Estimation of water storage changes in a tropical lake-floodplain system through remote sensing by Thijs de Klein, Victor Bense, Syed Mustafa

    Published 2025-02-01
    “…A collection of optical remote sensing and Synthetic Aperture Radar (SAR) scenes is used in combination with supervised classification algorithms and topographical data to derive lake volumes for the period 1984–2023, which are analyzed for trends and correlation with satellite-derived climate data. New hydrological insights for the region: Although lake volumes show strong interannual variability, no significant historical trend is identified. …”
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  4. 2344

    Assessing the Effects of a Minor CIR‐HSS Geomagnetic Storm on the Brazilian Low‐Latitude Ionosphere: Ground and Space‐Based Observations by F. S. Chingarandi, C. M. N. Candido, F. Becker‐Guedes, O. F. Jonah, S. P. Moraes‐Santos, V. Klausner, O. O. Taiwo

    Published 2023-09-01
    “…We used simultaneous observations from multiple instruments, namely; ground‐based Global Navigation Satellite Systems (GNSS) receivers, a Digisonde, ground magnetometers, and space‐based observations from the National Aeronautics and Space Administration Global‐scale Observations of Limb and Disk (GOLD) and SWARM missions. …”
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  5. 2345

    Measurement report: A comparative analysis of an intensive incursion of fluorescing African dust particles over Puerto Rico and another over Spain by B. Sarangi, D. Baumgardner, A. I. Calvo, B. Bolaños-Rosero, R. Fraile, A. Rodríguez-Fernández, D. Fernández-González, C. Blanco-Alegre, C. Gonçalves, E. D. Vicente, O. L. Mayol-Bracero, O. L. Mayol-Bracero

    Published 2025-01-01
    “…The León event occurred in the late winter and spring of 2022, when widespread, elevated layers of dust inundated the Iberian Peninsula. Satellite and back-trajectory analyses confirm that dust from northern Africa was the source of the particles during both events. …”
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  6. 2346

    Shadow Detection in Remote Sensing Images Based on Multibranch Feature Aggregation and Channel-Spatial Attention by Xueli Chang, Haiyang Shi, Tiejun Zhang, Huazhong Jin, Ao Xu

    Published 2025-01-01
    “…The effectiveness of the proposed method was validated on the public dataset AISD and the self-constructed satellite image dataset SISD. On the AISD dataset, the F1-score, OA, IOU, and BER metrics were 93.76%, 97.36%, 88.33%, and 4.19%, respectively. …”
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  7. 2347

    An Architecture-Tracking Approach to Evaluate a Modular and Extensible Flight Software for CubeSat Nanosatellites by Carlos E. Gonzalez, Camilo J. Rojas, Alexandre Bergel, Marcos A. Diaz

    Published 2019-01-01
    “…It has been identified as a key element to enhance team collaboration, increase reusability, reduce the mission risk, and facilitate the development and operation of new mission concepts, such as satellite mega-constellations. An appropriated fight software architecture represents the functional and non-functional requirements and guides the development. …”
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  8. 2348

    A New Frontier in Ionospheric Observations: GPS Total Electron Content Measurements From Ocean Buoys by Irfan Azeem, Geoff Crowley, Victoriya V. Forsythe, Adam S. Reynolds, Erik M. Stromberg, Gordon R. Wilson, Craig A. Kohler

    Published 2020-11-01
    “…Abstract Ground‐based Global Navigation Satellite System (GNSS) receivers have become a ubiquitous tool for monitoring the ionosphere. …”
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  9. 2349

    GNSS reflectometry from low-cost sensors for continuous in situ contemporaneous glacier mass balance and flux divergence by Albin Wells, David Rounce, Louis Sass, Caitlyn Florentine, Adam Garbo, Emily Baker, Christopher McNeil

    Published 2024-01-01
    “…In this study, we evaluate three approaches for direct, continuous measurements of the climatic mass balance, flux divergence and elevation change at a site on Gulkana Glacier in Alaska using low-cost global navigation satellite system (GNSS) sensors, GNSS interferometric reflectometry (GNSS-IR), banded ablation stakes with time-lapse cameras and combinations thereof. …”
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  10. 2350

    Ultralight aircraft and conventional digital cameras as an alternative for urban mapping by Román Edén Parra-Galaviz, Manuel de Jesús Pérez-Valdez, Omar Llanes-Cárdenas, Lennin Enrique Amador-Castro, Rafael Macías-Segura, Ciro de la Concepción Díaz-Hernández, Alberto Gaxiola

    Published 2025-01-01
    “…Unmanned Aerial Vehicles (UAVs) are employed extensively for this purpose, owing to their ease of operation and advanced georeferencing capabilities facilitated by integrated cameras coupled with Global Navigation Satellite System (GNSS) devices. However, some drawbacks have been identified, such as limited battery life, strict airspace regulations, and difficulties in mapping extensive territories due to the need for numerous takeoffs. …”
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  11. 2351

    The Prediction of Day‐to‐Day Occurrence of Low Latitude Ionospheric Strong Scintillation Using Gradient Boosting Algorithm by Xiukuan Zhao, Guozhu Li, Haiyong Xie, Lianhuan Hu, Wenjie Sun, Sipeng Yang, Yi Li, Baiqi Ning, Hisao Takahashi

    Published 2021-12-01
    “…Abstract Ionospheric scintillations caused by equatorial plasma bubbles (EPBs) can seriously affect various high technology systems based on Global Navigation Satellite System (GNSS) signals at equatorial and low latitudes. …”
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  12. 2352

    Generating high-precision farmland irrigation pattern maps using remotely sensed ecological indices and machine learning algorithms by Yuqi Liu, Yang Wang, Yanling Liao, Renkuan Liao, Jirka Šimůnek

    Published 2025-03-01
    “…The traditional approach of employing satellite remote sensing for large-scale visual assessments is impractical for identifying irrigation patterns due to interference caused by vegetation cover. …”
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  13. 2353

    Wind Speed-Independent Two-Source Energy Balance Model Based on a Theoretical Trapezoidal Relationship between Land Surface Temperature and Fractional Vegetation Cover for Evapotra... by Xiao-Gang Wang, Qing Kang, Xiao-Hong Chen, Wen Wang, Qing-Hua Fu

    Published 2020-01-01
    “…An accurate estimation of terrestrial evapotranspiration over heterogeneous surfaces using satellite imagery and few meteorological observations remains a challenging task. …”
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  14. 2354

    Modelling GNSS-observed seasonal velocity changes of the Ross Ice Shelf, Antarctica, using the Ice-sheet and Sea-level System Model (ISSM) by F. Baldacchino, F. Baldacchino, N. R. Golledge, M. Morlighem, H. Horgan, H. Horgan, H. Horgan, A. V. Alevropoulos-Borrill, A. Malyarenko, A. Malyarenko, A. Gossart, D. P. Lowry, L. van Haastrecht

    Published 2025-01-01
    “…Here, we present three new velocity datasets from Global Navigation Satellite System (GNSS) stations on the Ross Ice Shelf collected between early 2020 and late 2021 and show that they have two distinct peaks observed in austral summer and austral winter. …”
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  15. 2355

    Drastic Improvements in Air Quality in Ecuador during the COVID-19 Outbreak by Rasa Zalakeviciute, Renne Vasquez, Daniel Bayas, Adrian Buenano, Danilo Mejia, Rafael Zegarra, Valeria Diaz, Brian Lamb

    Published 2024-12-01
    “…The spatial evolution of atmospheric pollution using observed surface and satellite data, showed different results for the two major cities: Quito and Guayaquil. …”
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  16. 2356

    Land use and land cover classification for change detection studies using convolutional neural network by V. Pushpalatha, P.B. Mallikarjuna, H.N. Mahendra, S. Rama Subramoniam, S. Mallikarjunaswamy

    Published 2025-02-01
    “…Traditional methods for LULC classification involve manual interpretation of satellite images, which provides lower accuracy. Therefore, this paper proposed the Convolutional Neural Network (CNN)-based deep learning method for LULC classification. …”
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  17. 2357

    Analysis of Forest Cover in the Tumba-Lediima Nature Reserve (RTL-DRC) by Sylvestre Frey, André Musas A Musas, Nestor Anzola Kibamba, Sebastien Kidushi Mboma, Tege Simboni Simboni, Djonive Munene Asidi

    Published 2025-02-01
    “…Using Landsat 7 and 8 satellite imagery, combined with NDVI calculation and supervised classifications validated by a high Kappa coefficient, this study provides an accurate mapping of land cover change. …”
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  18. 2358

    Revisiting the Variation of the Ionospheric Irregularities in the Low Latitude Region of China Based on Small Regional Geodetic GNSS Station Network by H. Y. Gao, D. H. Zhang, Z. Z. Liu, S. J. Sun, Y. Q. Hao, Z. Xiao

    Published 2023-08-01
    “…Abstract The rate of total electron content index (ROTI) and loss of lock (LoL) from global navigation satellite system (GNSS) observations are an important data source for ionospheric scintillation study. …”
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  19. 2359

    Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform by Na Qian, Defu Zhou, Haowen Shu, Ming Zhang, Xingjun Wang, Daoxin Dai, Xiao Deng, Weiwen Zou

    Published 2025-02-01
    “…Breaking the bandwidth and speed limitations of the single-computing core along with further exploring the multichannel potential of this architecture, we anticipate that the proposed APP will accelerate the development of powerful opto-electronic processors as critical support for applications such as satellite networks and intelligent driving.…”
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  20. 2360

    Water-Matching CAM: A Novel Class Activation Map for Weakly-Supervised Semantic Segmentation of Water in SAR Images by Kai Wang, Zhongle Ren, Biao Hou, Feng Sha, Zhiyang Wang, Weibin Li, Licheng Jiao

    Published 2025-01-01
    “…Experiments on three datasets of SAR images taken by the GF-3 and Sentinel-1 satellite verify the validity of water-matching CAM. …”
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