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Future GPS: The USA’s GPS-III Programs

Aug 26, 2019 04:54 UTC by Defense Industry Daily staff

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LMCO on GPS
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August 26/19: GPS III Launch with Raytheon GPS OCX Raytheon announced that the US Air Force used the company’s GPS Next-Generation Operational Control System, known as GPS OCX, to support the launch of its second GPS III satellite into space. The ground system will spend 10 days maneuvering the satellite into its final orbit, demonstrating GPS OCX’s ability to simultaneously support multiple GPS III spacecraft on-orbit throughout the checkout and calibration process. GPS III SV02 is the newest generation of GPS satellites designed and built to deliver positioning, navigation and timing information apparently with three times better accuracy, and up to eight times improved anti-jamming capability than its predecessor. Prime contractor is Lockheed Martin. The GPS III satellite, also called Magellan, was launched on August 22 after years of delays. United Launch Alliance used a Delta IV rocket to launch the second Global Positioning System III (GPS III) satellite for the US Air Force Space and Missile Systems Center.

The above update is a recent abstract from our full article, itself part of our subscription offering. Keep reading to know more.

GPS IIIA concept
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GPS-III satellites, in conjunction with their companion OCX ground control, system are the Global Positioning System (GPS) future. They offer big advantages over existing GPS-II satellites and GCS, but most of all, they have to work. Disruption or decay of the critical capabilities provided by the USA’s Navstar satellites would cripple both the US military, and many aspects of the global economy.

The time-based GPS service is the most-used application of Einstein’s Theories of Relativity. GPS has become part of civilian life in ways that go go far beyond those handy driving maps, including crop planting, 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.

This DII FOCUS article looks at the existing constellation, GPS-III improvements, the program’s structure, its progress through contracts and key milestones, and extensive PTN (Positioning, Timing & Navigation)/ GNSS (Global Navigation Satellite System) research links.