Results 21 to 30 of about 2,128,065 (75)

Extraction of Impermeable Surfaces Based on Multi-Source Nighttime Light Images of Different Geomorphological Partitions

open access: yes, 2023
Accurate extraction of impermeable surfaces is important for assessing land use change and improving the urban heat island effect. Nighttime light imagery has the advantage of being efficient and cost effective, providing a new perspective for monitoring
Jiashuo Zhang   +2 more
core   +1 more source

Next Generation High Throughput Satellite System [PDF]

open access: yes, 2012
This paper aims at presenting an overview of the state-of-the-art in High Throughput Satellite (HTS) systems for Fixed Satellite Services (FSS) and High Density-FSS.
Vidal, Oriol   +11 more
core   +1 more source

Space advanced technology demonstration satellite [PDF]

open access: yes, 2023
The Space Advanced Technology demonstration satellite (SATech-01), a mission for low-cost space science and new technology experiments, organized by Chinese Academy of Sciences (CAS), was successfully launched into a Sun-synchronous orbit at an altitude ...
Sun, Ying   +69 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.   +30 more
core   +1 more source

A delay model for satellite constellation networks with inter-satellite links [PDF]

open access: yes, 2009
Within this paper we examine a non-geostationary satellite constellation network with inter-satellite links (ISLs) for global air traffic control (ATC) and air passenger communication (APC).
Romain Hermenier   +5 more
core   +1 more source

The Development of high fidelity linearized J2 models for satellite formation flying control [PDF]

open access: yes, 2005
The inclusion of the linearized J2 effect in the Hill equations of relative motion gives greater insight into satellite formation flying dynamics, and the opportunity to investigate alternative feedback control strategies for the station keeping task.
Roberts, Peter C. E.   +1 more
core   +3 more sources

Performance Assessment using ACM in DVB-S2/Advanced DVB-RCS Satellite Systems [PDF]

open access: yes, 2009
This paper presents the benefits of using adaptive coding and modulation in DVB-S2/advanced DVB-RCS satellite systems. The results are based on a satellite system simulator which was developed during an ESA study.
Boussemart, Vincent   +3 more
core   +1 more source

Mobility Extension for Broadband Satellite Multimedia [PDF]

open access: yes, 2009
This paper presents an extension for Broadband Satellite Multimedia (BSM) to support Mobility Management (MM). To support seamless handovers, mobility related entities are proposed in the Satellite Independent Access Function (SIAF) defined over the SI ...
Hu, Y. Fun   +5 more
core   +1 more source

Enhancing County-Level GDP Estimation Accuracy With Downscaled NPP-VIIRS Nighttime Light Data

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Nighttime light (NTL) data have provided invaluable support for estimating gross domestic product (GDP). However, commonly used global-scale NTL data acquired by the visible infrared imaging radiometer suite (VIIRS) aboard the Suomi National Polar ...
Weihua Lin   +3 more
doaj   +1 more source

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