نتایج جستجو برای: geostationary satellite

تعداد نتایج: 80742  

2004
Florestan de Belleville Laurent Dairaine Jérôme Lacan Christian Fraboul

Geostationary satellites are an efficient way to provide a large scale multipoint communication service. In the context of reliable multicast communications, a new hybrid satellite/terrestrial approach is proposed. It aims at reducing the overall communication cost using satellite broadcasting only when enough receivers are present, and terrestrial transmissions otherwise. This approach has bee...

2014
George Barbu Juliette Marais

“Successful introduction of the satellite navigation technology in the railway safety needs accreditation of a new mode of thinking, innovation, convincing demonstration of concept and lifting of technical and mentality barriers.” This article shows a the state of the art of the SATLOC project aiming at reporting on the baseline of the project according to the objectives, in line with the terms...

Journal: :JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 2010

Journal: :Journal of the Korean Society for Aeronautical & Space Sciences 2003

Journal: :Remote Sensing 2021

The Geostationary Lightning Mapper (GLM) on the Operational Environmental Satellite 16 (GOES-16) detects total lightning continuously, with a high spatial resolution and detection efficiency. Coincident data from GLM Advanced Baseline Imager (ABI) are used to explore correlation between cloud top properties flash activity across continental United States (CONUS) sector May September 2020. A lar...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2011
Rasmus Fensholt Assaf Anyamba Silvia Huber Simon Richard Proud Compton J. Tucker Jennifer Small Ed Pak Mads Olander Rasmussen Inge Sandholt Chris Shisanya

Since 1972, satellite remote sensing of the environment has been dominated by polar-orbiting sensors providing useful data for monitoring the earth’s natural resources. However their observation and monitoring capacity are inhibited by daily to monthly looks for any given ground surface which often is obscured by frequent and persistent cloud cover creating large gaps in time series measurement...

2011
Alessandro Raschellà Giuseppe Araniti Anna Umbert Antonio Iera Antonella Molinaro

In this work we are interested to investigate how the Geostationary (GEO) satellite can be used to employ efficiently High Speed Downlink Packet Access (HSDPA) technology supporting Multimedia Broadcast/Multicast Service (MBMS) in a scenario in which the terrestrial network is not available. An exhaustive simulation campaign has been carried out with the aim to determinate the Satellite-HSDPA (...

2004
Gregg J.S. Bluth William I. Rose

INTRODUCTION The use of satellite techniques provides valuable information for mapping ash hazards, as well as the means to study and predict the fates of volcanic clouds. We have used ultraviolet (TOMS – Total Ozone Mapping Spectrometer) and infrared (e.g., AVHRR – Advanced Very High Resolution Radiometer; HIRS2 – High Resolution Infrared Radiation Sounder/2; GOES – Geostationary Operational E...

Journal: :CoRR 2005
J. Muliadi Said D. Jenie Agus Budiyono

Abstract— In general, most of communication satellites were designed to be operated in geostationary orbit. And many of them were designed in prolate dual-spin configuration. As a prolate dual-spin vehicle, they have to be stabilized against their internal energy dissipation effect. Several countries that located in southern hemisphere, has shown interest to use communication satellite. Because...

2011
X. Zhang S. Kondragunta

Near-real time estimates of biomass burning emissions are important for air quality monitoring and forecasting. We present here the preliminary analysis of global biomass burning emission product (GBBEP) produced from geostationary-satellite-derived fire radiative power (FRP) in near-real time. Specifically, the FRP is retrieved at an interval of 15 to 30 minutes using WF_ABBA_V65 (Wildfire Aut...

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