Global Navigation Satellite Systems Engineering, Policy, and Design
Every breath you take . . .
Every move you make
Every step you take
I’ll be watching you
I originally planned on titling this column, “Waiting to Inhale,” recalling these lyrics and an editorial I wrote more than four years ago about my sense of relief at the departure of the second Bush administration.
I called that one, “Waiting to Exhale.”
By Inside GNSS
Federal officials are working to fill a funding shortfall nearly certain to occur next year given that both the House and Senate have cut an already halved budget request for GPS civil funding.
Sources confirm the Federal Aviation Administration (FAA) and the Department of Defense (DoD) are in talks about finding money to make up for the dramatic reduction. One source familiar with the situation said the FAA was searching its accounts for resources to address the loss.
By Inside GNSS
EquationsWorking 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
GNSS receivers and users, along with the critical infrastructures and services they support, face a growing threat from jamming, spoofing, and meaconing (JSM) events.
Several proposals for GNSS spoofing detection and signal authentication have been proposed over in recent years. These have focused mainly on adding cryptography elements to the GNSS signals and detecting RF characteristics of undesired signals.
By Inside GNSS
The past 15 years have witnessed tremendous developments of new and modernized satellite-based navigation (satnav) systems, including GNSSs, regional systems, and space-based augmentation systems (SBASs). These have been enabled by the original designs of GPS and GLONASS and, in turn, have stimulated the design of satnav signal structures with different characteristics from those pioneer systems.
By Inside GNSS
The IRNSS-1A spacecraft. ISRO photoIndia’s Space Research Organization (ISRO) reports that its first Indian Regional Navigation Satellite System satellite (IRNSS-1A), has reached geosynchronous orbit and all subsystems are operating normally.
The spacecraft was launched July 1 on board a Polar Satellite Launch Vehicle, PSLV-C22, from Satish Dhawan Space Centre, Sriharikota. This is the twenty third consecutively successful mission of PSLV.
By Inside GNSS
Nikolay Testoyedov, Information Satellite Systems – Reshetnev CompanyRussia reportedly will launch two GLONASS-M satellites this summer to compensate for the loss of a trio of the nation’s GNSS spacecraft in a July 2 failure of a Proton launch with three GLONASS-Ms on board.
By Inside GNSS
The U.S. Department of Homeland Security has released an abbreviated fact sheet and a summary report on its evaluation of the risks to U.S. critical infrastructure from GPS disruptions.
The unsurprising “bottom line,” as the public summary put it: “U.S. critical infrastructure sectors are increasingly at risk from a growing dependency on GPS for positioning, navigation, and timing (PNT) services. Such dependencies are not always apparent.”
By Inside GNSS
A geolocation industry–oriented nonprofit group is proposing that private companies adopt a set of 13 guidelines to help them protect the public and their bottom lines from breaches of geolocation privacy.
By Inside GNSS
