Results 41 to 50 of about 54,052,566 (187)

GPS-Based Orbit Determination for KOMPSAT-5 Satellite [PDF]

open access: yesETRI Journal, 2011
Korea Multi-Purpose Satellite-5 (KOMPSAT-5) is the first satellite in Korea that provides 1 m resolution synthetic aperture radar (SAR) images. Precise orbit determination (POD) using a dual-frequency IGOR receiver data is performed to conduct high-resolution SAR images.
openaire   +1 more source

Development of a Web-Based Analytical Framework for Soil Moisture Estimation Using Multipolarized SAR Data [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This study developed a novel framework to estimate and visualize soil moisture using KOMPSAT-5 synthetic aperture radar (SAR) data in a real-time web-based environment.
D. H. Lee, D. W. Chung, S. G. Lee
doaj   +1 more source

Analysis of Collision Avoidance Maneuver Frequency for the KOMPSAT-2 and the KOMPSAT-5 [PDF]

open access: yesJournal of the Korean Society for Aeronautical & Space Sciences, 2011
In this paper, a collision avoidance maneuver frequency for the KOMPSAT-2 and the KOMPSAT-5 is analyzed. For the statistical prediction of the avoidance maneuver frequency, mission orbits, responsive time, accepted collision probabilities, and positional uncertainties of primary and secondary objects are considered. In addition, the collision avoidance
Eun-Hyouek Kim   +3 more
openaire   +1 more source

Varaition of Local Time of Ascending Node Due to the Altitude Decay of Sun-Synchronous Satellite [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2006
Variation of the Local Time of Ascending Node (LTAN) has been analyzed according to initial inclinations when the altitude of Sun-synchronous satellite is continuously decreased due to the atmospheric drag.
Byoung-Sun Lee   +5 more
doaj   +1 more source

Radargrammetry of high resolution synthetic aperture radar onboard KOMPSAT-5 [PDF]

open access: yes2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
This paper reports the preliminary results on the study of radargrammetry especially for a high-resolution satellite synthetic aperture radar system. Theoretical configurations for radargrammetry in terms of coverage, orbit selection, incidence angles, height sensitivity of parallax and height resolution of DEM were calculated according to the proposed
openaire   +2 more sources

Absolute Radiometric Calibration of KOMPSAT-3A [PDF]

open access: yes, 2016
This paper presents a vicarious radiometric calibration of the Korea Multi-Purpose Satellite-3A (KOMPSAT-3A) performed by the Korea Aerospace Research Institute (KARI) and the Pukyong National University Remote Sensing Group (PKNU RSG) in 2015.The ...
H. Y. Ahn   +4 more
core   +1 more source

Development of Mobile Active Transponder for KOMPSAT-5 SAR Image Calibration and Validation [PDF]

open access: yesThe Journal of Korean Institute of Electromagnetic Engineering and Science, 2013
KOMPSAT-5(KOrea Multi-Purpose SATellite-5) has a benefit of continuously conducting its mission in all weather and even night by loading SAR(Synthetic Aperture Radar) payload, which is different from optical sensor of KOMPSAT-2 satellite. During IOT(In-Orbit Test) periods, SAR image calibration should be conducted through ground target of which ...
Durk-Jong Park, Kyung-Whan Yeom
openaire   +1 more source

Estimation and Improvement in the Geolocation Accuracy of Rational Polynomial Coefficients with Minimum GCPs Using KOMPSAT-3A

open access: yes, 2020
Manuscript, figure, table, and dataset of KOMPSAT-3A of the "Estimation and Improvement in the Geolocation Accuracy of Rational Polynomial Coefficients with Minimum GCPs Using KOMPSAT-3A"THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE
Kim, N (via Mendeley Data), Kim, Namhoon
core   +2 more sources

Radiometric Cross-calibration of KOMPSAT-3A with Landsat-8 [PDF]

open access: yes, 2016
In this study, Cross calibration was conducted at the Libya 4 PICS site on 2015 using Landsat-8 and KOMPSAT-3A. Ideally a cross calibration should be calculated for each individual scene pair because on any given date the TOA spectral profile is ...
H. Y. Ahn   +4 more
core   +1 more source

Detection of Damaged Buildings Using Temporal SAR Data with Different Observation Modes

open access: yesRemote Sensing, 2023
Synthetic Aperture Radar (SAR) remote sensing has been widely used as one of the most effective tools for responding to earthquake disasters. In general, damaged-building detection with SAR data has been conducted based on change detection using temporal
Minhwa Kim, Sang-Eun Park, Seung-Jae Lee
doaj   +1 more source

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