December 31, 2013

GAO Faults DHS, DoT for GPS Interference/Backup Effort  

[SIGNALS Exclusive] Federal efforts to protect positioning, navigation and timing (PNT) signals came under sharp criticism during the December meeting of the National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board, with the Department of Homeland Security (DHS) getting a bureaucratic ear boxing for having done little so far to specifically protect GPS. (more)



"Studying the Effects of Interference on GNSS Signals - White Paper"

Assessing the impact of interference on live GNSS signals is a slow and challenging process, with many uncontrollable environmental factors. In this white paper, Spirent's test engineers describe how to conduct such tests in repeatable laboratory conditions, and reveal the effects of five different interference sources on the tracking capability and navigation performance of a commercially available GPS receiver.

Download the White Paper 

FAA Taps Six Operators for Unmanned Aircraft Test Sites

U.S. aviation officials on Monday (December 30, 2013) named the winners of a high-stakes contest to operate one of six new research and test sites for unmanned aircraft. The Federal Aviation Administration (FAA) will now work to help the sites set up safe operations and create the structures needed within the agency to help it use the sites' research results. (more)

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GNSS SIGNALS Top Five in 2013

Just like in the gossip columns - bad news attracts more attention than good.

Of the three most viewed news stories on the Inside GNSS website in 2013, the top three had to do with threats to GPS. But readers assuaged their anxieties with most-read articles numbers 4 and 5 about developments in two GNSS systems.

1) Congress Slashes Civil GPS Funding
In a set of decisions that could potentially slow GPS modernization both the House and Senate Appropriations Committees this week slashed funding for the civil community's contribution to the GPS system from the Fiscal Year 2014 (FY14) budget. (more)

2) North Korea's GPS Jamming Prompts South Korea to Endorse Nationwide eLoran System
GPS jamming attacks from North Korea that have increased in frequency and duration since they began August 2010 have prompted the South Korean government to implement an enhanced Loran (eLoran) systems that will cover the entire country by 2016. (more)

3) LightSquared Investors Sue GPS Industry
Investors led by Harbinger Capital Partners have filed a $1.9 billion lawsuit against a trio of GPS receiver manufacturers over LightSquared, a now bankrupt firm that still hopes to build a wireless broadband network across the United States. (more)

4) Air Force Proposes Dramatic Redesign for GPS Constellation
With the budget vise tightening, top Pentagon managers are readying some potentially dramatic changes to the GPS constellation - changes that promise to lower both the cost of the satellites and the expense of putting them into orbit. (more)

5) China Publishes Official Signal-in-Space ICD for BeiDou Satellite Navigation Open Service
China released today (December 27, 2012 in Beijing; December 26 in the United States) an official version of the complete interface control document (ICD) for the nation's BeiDou Navigation Satellite System (BDS) Open Service signal-in-space (SIS). (more)

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