201107 July/August 2011

GLONASS-K for Airborne Applications
July 2, 2011

GLONASS-K for Airborne Applications

FIGURE 1: GPS/GLONASS L1 frequency band

As is well known, Galileo will become the European complement to the U.S. Global Positioning system.

But what about Russia’s GLONASS?

Although this constellation has been in operation for nearly three decades, the limited number of available satellites along with an uncertain governmental commitment to GLONASS performance until recent years had seriously restricted its use for aviation.

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By Inside GNSS
GPS Interference Testing
July 1, 2011

GPS Interference Testing

Anechoic chamber test site at U.S. Naval Air Systems Command (NAVAIR) facility in Patuxent River, Maryland

Interference can pose a threat to the reception of GNSS signals in a variety of ways. Even low-level signals have the potential to interfere with GNSS receivers, which require very high sensitivity for acceptable performance due to the extremely low received GPS signal power at the Earth’s surface.

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By Inside GNSS
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