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Statistical Approach to Research on the Relationship Between Kp/Dst Geomagnetic Indices and Total GPS Position Error
Published 2025-07-01“…Satellite navigation data were processed using RTKLIB software in standalone mode with standardized atmospheric and orbital corrections. The GPS was chosen over GLONASS following preliminary testing, which revealed a higher sensitivity of GPS positional accuracy to variations in geomagnetic indices such as Kp and Dst, despite generally lower total error magnitudes. …”
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Enhancing LEO direct-to-satellite channel modeling with the shadowing effect via K-distribution
Published 2025-06-01“…This paper presents an enhanced finite-state Markov channel with two-sectors (FSMC-TS) model that integrates shadowing effects into the bad sector (B-Sector) by using the K-distribution for modeling. …”
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Magnetic Activities of Wolf 359: Starspot Distribution and Quasiperiodic Pulsation Using TESS Data
Published 2025-01-01“…Using 2 minute short-cadence Transiting Exoplanet Survey Satellite (TESS) data on this highly active star, we found 48, 46, and 32 flares in Sectors 45, 46, and 72, respectively. The rotation period from TESS is estimated to be 2.69 days with negligible error, which matches well with the previous literature values. …”
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Forecasting Ethanol and Gasoline Consumption in Brazil: Advanced Temporal Models for Sustainable Energy Management
Published 2025-03-01“…Uber Orbit exhibited the highest accuracy in forecasting ethanol consumption among the evaluated models, achieving a mean absolute percentage error (MAPE) of 6.77%. …”
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Design and Prototype Verification of a 3-meter Aperture Wrap-rib Reflector
Published 2025-01-01“…After four deployments and three days of placement, the surface error increases slightly but remains below the design target value of 1 mm. …”
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