satellite orbit
Recent Progress and Standardization of Terrestrial Wireless and Satellite Communication Systems
White Paper The inter-orbit optical communication systems which utilize the advantages of optical transmission features as a high capacity transmission link are also introduced. This paper overviews the recent progress and... [02 Apr 2009]
Photos: Computers usher in pilots' vision 2.0
Photo Indian technology giant HCL recently revealed its suite of visual processing tech, including this satellite image processing technology, used to clean up images of the earth from orbit and bring them... [16 Jan 2009]
Lunar satellite mission inches closer to blast off
News A UK-led mission to put a satellite in orbit around the Moon which could one day enable lunar colonists to use mobile phones to communicate with each other has inched a step closer to blast off. The plan... [05 Dec 2008]
IPv6 and IPsec Tests of a Space-Based Asset, the Cisco Router in Low Earth Orbit (CLEO)
White Paper These tests were performed using the Cisco router in Low Earth Orbit (CLEO), an experimental payload onboard the United Kingdom - Disaster Monitoring Constellation (UKDMC) satellite built and operated by... [05 Nov 2008]
Photos: Inmarsat satellite lifts off
Photo The I-4 is still in need of thorough testing before it can be put into geostationary orbit to circle the Earth's equator. The Proton Breeze M rocket has successfully launched the third Inmarsat-4 (I-4)... [20 Aug 2008]
Galileo phones home
News Giove-B became the second Galileo test satellite to be put into orbit on 27 April. A test satellite for the European Galileo programme, Giove-B, has successfully transmitted radio... [09 May 2008]
Photos: Galileo's phase two goes into orbit
Photo This is what the Giove-B satellite will look like in orbit around the earth. This is the Soyuz-Fregat rocket, which carried Giove-B into orbit, minutes before its launch on Sunday.... [29 Apr 2008]
Cheat Sheet: Galileo
Cheat Sheet The first experimental satellite Giove A (Galileo in-orbit validation element) was launched in December 2005 and Giove B is due to launch in spring 2008. The aim is to get four operational satellites... [28 Jan 2008]
TCP Via Satellite Constellations
White Paper Studies mainly concentrate on use of Geostationary Earth Orbit (GEO) constellations. However interest in use of Low Earth Orbit (LEO) constellations is increasing, especially for multimedia transmissions... [06 Dec 2007]
OPNET Model of TCP With Adaptive Delay and Loss Response for Broadband GEO Satellite Networks
White Paper Broadband Geostationary Earth Orbit (GEO) satellite networks play an important role in providing Internet access and network connectivity. The paper proposed a modification of TCP named TCP with adaptive... [06 Dec 2007]
Arctic tech gets sub-zero test
News Satellite coverage of both polar regions is limited to one service - the Iridium satellite network - and these low-orbit sats are designed for speech and low data rate communications,... [26 Oct 2007]
Inmarsat readies for mobile push
News The company has launched four generations of satellites into the Earth's orbit since it was set up in 1979 and is currently looking for a launch window to fire its final fourth-generation satellite in... [07 Jun 2007]
Road-pricing satellites need more cash
News Galileo is a constellation of 30 satellites in orbit at an altitude of 24,000km. An ambitious European satellite network will need more public money if it is to get off the ground on time. The European... [18 May 2007]
Satellite to get the army talking
News The satellite, Skynet 5A, was launched from French Guiana on Sunday and is undergoing in-orbit testing before becoming fully operational in three to four weeks. The UK military's communications options... [12 Mar 2007]
Photos of the month - July 06
Photo Galileo heads for orbit: Galileo is the new European satellite-based navigation system currently under development. This is the Giove-A satellite on its Soyuz launcher on pad six at... [28 Jul 2006]