Global Navigation Satellite Systems Engineering, Policy, and Design
Tied up in the long-running fight over reauthorizing the Highway Trust Fund is funding for a program to develop GPS-enabled crash avoidance technology for vehicles.
By Inside GNSS
The U.S. Air Force has awarded Lockheed Martin a $68 million contract to provide mission readiness, launch, early orbit checkout, and on-orbit operations engineering support for the first two GPS III space vehicles.
Under the contract, Lockheed Martin will provide technical support to the Air Force’s 2nd Space Operations Squadron (2SOPS) and monitor the health and performance of the first two GPS III satellites from launch through their 15-year operational design lives.
By Inside GNSS
The Federal Aviation Administration (FAA) has announced the award of a contract that will help accelerate the development of GNSS-based procedures under the agency’s Next Generation (NextGen) air traffic management program.
By Inside GNSS
NovAtel Inc. today (May 30, 2012) announced the development of their OEM625S Selective Availability/Anti-Spoofing Module (SAASM) GNSS receiver, the first product emerging from a collaborative effort with L-3 Interstate Electronics Corporation (IEC).
The OEM625S, which becomes available for purchase in the third quarter of this year, will combine a commercial dual-frequency NovAtel GNSS receiver with an L-3 IEC XFACTOR SAASM in a single card solution, reducing overall size and power requirements for end customer applications.
By Inside GNSS
Launch of the first GPS III satellite has slipped to 2015 and completion of the ground control system is now delayed by up to two years, according to the chief of the Air Force’s space operations
“We’ll be ready to launch the first GPS III in 2015, but it now appears the next generation GPS Operational Control System, or OCX, won’t be ready for about a year or two after that,” General William L. Shelton, commander of Air Force Space Command (AFSPC) told attendees at the 28th Annual National Space Symposium.
By Inside GNSS
Return to main article: "Truth on the Range"
By Inside GNSS
EQUATIONS 1 -11GLONASS currently uses a frequency division multiple access (FDMA) technique to distinguish the signals coming from different satellites in the Russian GNSS constellation. The GLONASS L1 and L2 bands are divided into 14 sub-bands, and each satellite transmits in one of these.
The sub-bands are identified by frequency numbers k, from -7 to 6. The GLONASS L1 and L2 carrier frequencies, in hertz, at a frequency number k are defined by:
Working Papers explore the technical and scientific themes that underpin GNSS programs and applications. This regular column is coordinated by Prof. Dr.-Ing. Günter Hein, head of Europe’s Galileo Operations and Evolution.
By Inside GNSS
Typical Rack-Mounted UHARS SystemA next-generation “truth” reference system for the U.S. Air Force (USAF) — the Ultra High Accuracy Reference System (UHARS) — is currently under development by the 746th Test Squadron (746 TS) at Holloman Air Force Base, New Mexico.
By Inside GNSS
Transnav 2011The 10th TRANSNAV symposium will be held June 19-21, 2013 at Gdynia, Poland, a seaport and resort city on the south coast of the Baltic.
The biennial event is an opportunity for scientists and professionals in navigation, transport, ocean engineering and maritime technology to share knowledge and research on all aspects of maritime navigation and safety of sea transportation. The symposium is held in English.
The organizers expect 300 participants from 50 countries or more.
By Inside GNSS
MBOC signal at top, BOC (1,1) at bottom(Updated May 21) U.S. warfighters could be affected and European navigation users could end up paying more if the British are able to enforce a patent on technology at the heart of the new GPS and Galileo civil signals.
By Inside GNSS
The launch of the first GPS III satellite has slipped to 2015 and completion of the ground control system is now delayed by up to two years, according to the chief of the Air Force’s space operations
“We’ll be ready to launch the first GPS III in 2015, but it now appears the next generation GPS Operational Control System, or OCX, won’t be ready for about a year or two after that,” General William L. Shelton, commander of Air Force Space Command told attendees at the 28th Annual National Space Symposium.
By Inside GNSS
