Results 11 to 20 of about 35,279 (308)

SENTINEL-1 BASED FLOOD MAPPING USING INTERFEROMETRIC COHERENCE AND INTENSITY CHANGE DETECTION APPROACH [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
This study presents a semi-automatic algorithm for mapping floods. Both Optical and Synthetic Aperture Radar (SAR) data are used to observe the flood that hit the Cukurova region of Adana (Turkey) in 2019. The performance of the interferometric coherence
I. Papila, U. Alganci, E. Sertel
doaj   +1 more source

Research on Automated Post-Earthquake Building Damage Assessment Method [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This study addresses the challenges of low efficiency and limited scalability in traditional post-earthquake building damage assessment methods by proposing an automated assessment framework.
S. Liu   +5 more
doaj   +1 more source

Design and Implementation of the Mission Planning Functions for the KOMPSAT-2 Mission Control Element [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
Spacecraft mission planning functions including event prediction, mission scheduling, command planning, and ground track display have been developed for the KOMPSAT-2 mission operations.
Byoung-Sun Lee, Jae-Hoon Kim
doaj   +1 more source

Automatic Detection of Mining Subsidence using InSAR and YOLOv11 Model [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Underground coal mining will cause serious ground subsidence and affect the life and property safety of surrounding residents. Deep learning provides the possibility to process a large amount of data information, and can provide an effective model based ...
L. Chen   +5 more
doaj   +1 more source

Analysis of the Motion of a Tether-Perturbed Satellite [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
The motion of each satellite in a tethered satellite system is non-Keplerian in the Earth's gravitational field. In this paper, the tether perturbation force is formulated and compared with the perturbation force due to the Earth's oblateness.
Sungki Cho, Jaehoon Kim
doaj   +1 more source

Peak-to-Average Power Ratio of Multicarrier Faster-Than-Nyquist Signals: Distribution, Optimization and Reduction

open access: yesIEEE Access, 2018
Multicarrier faster-than-Nyquist (MFTN) is a spectral efficient transmission scheme for future communication systems. However, as one of the most important drawbacks of multicarrier transmission systems, the peak-to-average power ratio (PAPR) of MFTN ...
Aijun Liu   +5 more
doaj   +1 more source

An Enhanced Multiple Random Access Scheme for Satellite Communications [PDF]

open access: yes, 2012
In this paper, we introduce Multi-Slots Coded ALOHA (MuSCA) as a multiple random access method for satellite communications. This scheme can be considered as a generalization of the Contention Resolution Diversity Slotted Aloha (CRDSA) mechanism. Instead
Bui, Huyen-Chi   +6 more
core   +1 more source

IP-Level Satellite Link Emulation with KauNet [PDF]

open access: yes, 2009
Distributed applications and transport protocols communicating over a satellite link may react very strongly to conditions specific to that kind of link.
Garcia, Johan,   +12 more
core   +1 more source

Broadband satellite multimedia [PDF]

open access: yes, 2010
The broadband satellite multimedia (BSM) architecture standardised by ETSI defines a satellite independent service access point (SI-SAP) interface layer that separates the satellite independent features of the upper layers from the satellite dependant ...
Berioli M.   +22 more
core   +1 more source

SatERN: a PEP-less solution for satellite communications [PDF]

open access: yes, 2011
In networks with very large delay like satellite IPbased networks, standard TCP is unable to correctly grab the available resources. To overcome this problem, Performance Enhancing Proxies (PEPs), which break the end-to-end connection and simulate a ...
Lopez Pacheco, Dino   +8 more
core   +1 more source

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