Apr 02, 2013 14:20 UTC
Latest updates[?]: FY 2013 support; GAO offers financial snapshot.
GBS Concept & Elements
Pentagon contracts occasionally refer to the Global Broadcast Services (GBS), a system linked to the Wideband SATCOM program. A variant was first fielded in Bosnia during 1996, and special nodes were also set up in the aftermath of Hurricane Katrina. It sounds almost like a form of global satellite TV – which is close, but not quite right. GBS is not intended to replace existing MILSATCOM (MILitary SATellite COMmunications) systems in any way. Instead, GBS uses a form of “push and store” to distribute high-bandwidth information for local relay, thereby saving critical two-way military satellite communications systems from having to handle every field request.
The other thing that makes GBS so attractive is the ability to provide high-volume data directly into 18-inch antennas, allowing streaming to and storage in devices that can move with units in the field. The GBS “pushes” a high volume of packaged data to these widely dispersed, low-cost receive terminals, whose function resembles the set-top smart cable TV storage box or TiVO used at home.
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Feb 20, 2013 13:10 UTC
Latest updates[?]: Contract begins work on satellites 7 & 8.
GPS IIIA concept
Disruption or decay of the critical capabilities provided by the USA’s Global Positioning System (GPS) satellites would cripple both the US military, and many aspects of the global economy. GPS has become part of civilian life in ways that go go far beyond those handy driving maps, including timing services for stock trades, and a key role in credit card processing. At the same time, military class (M-code) GPS guidance can now be found in everything from cruise missiles and various precision-guided bombs, to battlefield rockets and even artillery shells. Combat search and rescue radios rely on this line of communication, and so does a broadening array of individual soldier equipment.
GPS-III satellites are a key part of this PTN (Positioning, Timing & Navigation) system’s future plan, offering several improvements over the existing GPS II family. So, too, does its companion OCX ground control system. This DII FOCUS article looks at the existing constellation, GPS-III improvements, the program’s structure, its progress through contracts and key milestones, and additional PTN/GNSS research links.
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Jan 03, 2013 19:45 UTC
Latest updates[?]: Major contract for satellites 5 & 6, with all predicted cost increases.
AEHF concept
The USA’s new Advanced Extremely High Frequency (AEHF) satellites will support twice as many tactical networks as the current Milstar II satellites, while providing 10-12 times the bandwidth capacity and 6 times the data rate transfer speed. With the cancellation of the higher-capacity TSAT program, AEHF will form the secure, hardened backbone of the Pentagon’s future Military Satellite Communications (MILSATCOM) architecture, with a mission set that includes nuclear command and control. Its companion Family of Advanced Beyond-line-of-sight Terminals (FAB-T) program will give the US military more modern, higher-bandwidth receiving capabilities, and add more flexibility on the front lines. The program has international components, and partners currently include Britain, Canada, and the Netherlands.
This article offers a look at the AEHF system’s rationale and capabilities, while offering insight into some of the program’s problems, and an updated timeline covering over $5 billion worth of contracts since the program’s inception.
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Sep 30, 2012 19:01 UTC
Latest updates[?]: FY 2013 contract over $1.5 billion.
Boeing Delta IV Heavy
The EELV program was designed to reduce the cost of government space launches through greater contractor competition, and modifiable rocket families whose system requirements emphasized simplicity, commonality, standardization, new applications of existing technology, streamlined manufacturing capabilities, and more efficient launch-site processing. Result: the Delta IV (Boeing) and Atlas V (Lockheed Martin) heavy rockets.
Paradoxically, that very program may have forced the October 2006 merger of Boeing & Lockheed Martin’s rocket divisions. Crosslink Magazine’s Winter 2004 article “EELV: The Next Stage of Space Launch” offers an excellent briefing that covers EELV’s program innovations and results, while a detailed National Taxpayer’s Union letter to Congress takes a much less positive view. This DID Spotlight article looks at the Delta IV and Atlas V rockets, as well as the contracts placed since the merger that formed the United Launch Alliance.
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Aug 20, 2012 16:00 UTC
Latest updates[?]: So far, so good with dual launching of validation sats.
Galileo concept
The USA’s Global Positioning System service remains free, but the European Union is spending billions to create an alternative under their own control. In addition to civilian GPS (the Open Service), services to be offered include a Safety of Life Service (SoL) for civil aviation and search and rescue, a paid Commercial Service with accuracy greater than 1 meter, plus a Public Regulated Service (PRS) for use by security authorities and governments. PRS/SoL aims to offer Open Service quality, with added robustness against jamming and the reliable detection of problems within 10 seconds.
Organizational issues and shortfalls in expected progress pushed the “Galileo” project back from its originally intended operational date of 2007 to 2014/15. After a public-private partnership model failed, the EU gained initial-stage approval for its plan to finance the program with tax dollars instead of the expected private investments. Political issues were overcome in 2007 by raiding other EU accounts for the billions required, but by 2011, it became clear that requests for billions more in public funds were on the way. Meanwhile, doubts persist in several quarters about Galileo’s touted economic model. Security concerns regarding China’s involvement, and its Beidou-2/Compass project overlap, have been equally persistent. On a European political level, however, Galileo is now irreversible.
This article offers background, players, developments, contracts, and in-depth research links for Galileo, as well as linked EU programs like GIOVE and EGNOS.
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