Results 71 to 80 of about 240 (162)

Quality Assessment of Ionosphere-Corrected Bending Angles from Multi-GNSS Radio Occultation Missions

open access: yesRemote Sensing
This study evaluates the quality of ionosphere-corrected bending angle products from 12 satellite radio occultation (RO) missions, with data provided by the ROM SAF and CDAAC data centers.
Jinying Ye, Ying Li, Xingliang Huo
doaj   +1 more source

Doppler Frequency Estimation of Point Targets in the Single-Channel SAR Image by Linear Least Squares

open access: yesRemote Sensing, 2018
This paper presents a method and results for the estimation of residual Doppler frequency, and consequently the range velocity component of point targets in single-channel synthetic aperture radar (SAR) focused single-look complex (SLC) data. It is still
Joong-Sun Won
doaj   +1 more source

Performance Analysis of Refocusing Algorithms for KOMPSAT-5 Images

open access: yesThe Journal of Korean Institute of Electromagnetic Engineering and Science, 2022
Seung-Jae Lee, Sun-Gu Lee
openaire   +1 more source

Assimilation of KOMPSAT-5 Bending Angle in GSI 4D-EnVar Assimilation System

open access: yesMAUSAM
Bending Angle from KOMPSAT-5 (Korea Multi-Purpose Satellite-5) GNSS-RO (Global Navigation Satellite System - Radio Occultation) data is assimilated in Global Data Assimilation and Forecast System. The observations are incorporated using the GSI (Grid-point Statistical Interpolation) 4D-EnVAR analysis scheme.
Suryakanti Dutta   +4 more
openaire   +1 more source

Lake detection and semantic segmentation using a deep learning model and Kompsat-5 images

open access: yesIOP Conference Series: Earth and Environmental Science
Abstract Surface water detection and extraction from remote sensing data is a favorable study topic due to the critical importance of this indispensable resource. For water resource management implementation, lake and reservoir detection and segmentation can supply valuable information.
Nguyen Hong Quang   +4 more
openaire   +1 more source

A Data-Driven Battery Degradation Estimation Method for Low-Earth-Orbit (LEO) Satellites

open access: yesApplied Sciences
Battery degradation is a critical challenge in the operation and longevity of low-Earth-orbit (LEO) satellites because of its direct impact on mission reliability and power system performance.
Kyun-Sang Park, Seok-Teak Yun
doaj   +1 more source

Analysis of LEO Satellite Detection Errors Considering Atmospheric Environment

open access: yesIEEE Open Journal of Antennas and Propagation
This paper proposes a ray-tracing method to estimate a propagation path between a ground station and low-Earth-orbit (LEO) satellites. To accurately predict a propagation path and detection error, the proposed ray-tracing method adopts an atmospheric ...
Jongho Keun, Doyoung Jang, Hosung Choo
doaj   +1 more source

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