GPS Modernization

Ground Control Readied for GPS III

September 30, 2013By

Raytheon Company reached several milestones recently in its development of the GPS Next -Generation Operational Control System (GPS OCX).  Lockheed Martin’s GPS III Non-flight Satellite Testbed (GNST) — a full-sized, functional satellite prototype currently residing at Cape Canaveral Air Force Station — successfully established remote connectivity and communicated with OCX during pre-flight tests. GNST proved that it could connect with... read more

This article is tagged with and posted in Defense News, GNSS News, GPS Modernization, The System

GPS III Prototype Successfully Integrated with OCX Ground Control Segment

September 25, 2013By
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The prototype for Lockheed Martin ‘s next generation GPS III satellite reached a major milestone on August 30 when it successfully established remote connectivity and communicated with the GPS Next Generation Operational Control System (OCX), being developed by Raytheon, during a series of pre-flight tests. During the Compatibility and Integration (C&I) Tests, Lockheed Martin’s GPS III Non-flight Satellite Testbed (GNST) —... read more

Exelis Completes Critical Data Security Work on GPS OCX System

September 16, 2013By
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Exelis has delivered three ground-based encryptors to Raytheon Company for the U.S. Air Force’s next-generation Global Positioning System Operational Control System, or GPS OCX. Designed to automatically code and decode GPS signals, encryptors facilitate the exchange of user information by securely transmitting navigation payload data between the OCX ground station and the orbiting constellation of satellites. “Following successful thermal, electromagnetic... read more

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GPS III and OCX Satellite Launch, Early Orbit Ops Successfully Demonstrated

September 13, 2013By
An artist’s rendering of the GPS III satellite.

Lockheed Martin and Raytheon Company successfully completed the third of five planned launch and early orbit exercises to demonstrate the launch readiness of the world’s most powerful and accurate Global Positioning System (GPS), the U.S. Air Force’s next-generation GPS III satellite and Operational Control System (OCX). Successful completion of Exercise 3, on August 1, was a key milestone demonstrating Raytheon’s... read more

Registration Opens for Munich Satellite Navigation Summit 2014

September 12, 2013By
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Registration is now open for Munich Satellite Navigation Summit 2014, which will be held March 25-27, 2014, at the Residenz Muenchen in Munich, Germany. The summit will have a booth (Booth H) in the exhibit hall at the ION GNSS+ conference next week in Nashville, Tennessee. The conference is offering a special ION rate for those who register no later... read more

CGSIC Agenda Released

September 10, 2013By

The 53rd meeting of the Civil GPS Service Interface Committee will be held Monday and Tuesday, September 16-17, before the Institute of Navigation GNSS+ 2013 Conference. Both events take place at the Nashville Convention Center, in Nashville, Tennessee. The meeting agenda is now available on the event website. Monday morning’s CGSIC concurrent sessions include the Timing Subcommittee and the Surveying,... read more

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Raytheon GPS Launch and Checkout Capability Cleared for Test

September 4, 2013By
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Raytheon Company has received Interim Authorization to Test (IATT) security certification for the Global Positioning System Next Generation Operational Control System (GPS OCX) Launch and Checkout System (LCS) four months ahead of schedule. Raytheon received a one-year certification with no liens, meaning the government does not require any changes. The LCS IATT certification enables Raytheon to move to the next... read more

This article is tagged with , and posted in Featured Stories, GNSS News, GPS Modernization, Latest News

The System: IRNSS Signal Close up

September 1, 2013By and

IRNSS Signal Close up By Richard Langley, Steffen Thoelert, and Michael Meurer The spectrum of signals from IRNSS-1A, the first satellite in the Indian Regional Navigation Satellite System, as recorded by German Aerospace Center researchers in late July, appears to be consistent with a combination of BPSK(1) and BOC(5,2) modulation. Figure 1 shows that, centered at 1176.45 MHz, the signal... read more

This article is tagged with and posted in Augmentation & Assistance, Galileo, GLONASS, GPS Modernization, The System