Global Navigation Satellite Systems Engineering, Policy, and Design
After years of studying the concept of using low-Earth orbit (LEO) navigation satellites to supplement the Galileo system, the European Space Agency (ESA) is ready to move forward with an in-orbit demonstration as part of its new FutureNAV program.
By Renee Knight
Verifying spoofing countermeasures based on sparse signal processing.
By Inside GNSS
A look at a multiscale interference monitoring approach using several different detectors, as well as an overview of findings of an interference monitoring campaign conducted at a European airport.
By Inside GNSS
The low-cost, lightweight platform can be easily configured for a variety of applications and test scenarios. This article focuses on its use for GNSS authentication.
By Inside GNSS
Space debris poses a danger to PNT. Here’s a look at the threat and how the FCC plans to regulate its removal.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
BAE Systems has enhanced anti-jam (AJ) capabilities on military weapon systems and the platforms that host them, giving both the same level of protection from interference—with such protection becoming even more critical as threats from adversaries continue to increase.
By Renee Knight
A new GNSS antenna array algorithm helps simultaneously estimate the antenna array attitude and direction of the incoming multipath wave fronts, improving attitude and position accuracy.
By Inside GNSS
Identifying GNSS interference based on ADS-B Out data and validating that data against confirmed interference from fielded airborne receivers.
By Inside GNSS
Detecting interference using machine learning algorithms to monitor ADS-B data.
By Inside GNSS
The European Space Agency’s new navigation head, Francisco-Javier Benedicto Ruiz, has a lot to say about GNSS, both present and future. We recently spoke with him about his views on satellite navigation, signal vulnerability and authentication, and the agency’s working relationship, or not, with Russia. The technical team behind the Galileo authentication service and industry representatives developing alternative positioning, navigation and timing solutions also share insights.
By Peter Gutierrez
As guest columnist Dino Smajlovic explains, testing allows for inertial error characterization and understanding, ensuring proper error budgets and more accurate navigation solutions. Rate tables are among the tools used, with some allowing testing, characterizing and modeling in one installation step.
By Inside GNSS
RTCA is working to develop new standards to tackle GNSS growth and challenges. Here’s an update on the special committee’s progress, provided during a recent webinar.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
GMV Aerospace and Defense has developed a system for a pan-European, public time distribution. At the recent AltPNT Demonstration Day at the European Commission’s Joint Research Center (JRC), Ricardo Píriz, from GMV AD’s GNSS Time and Frequency Group, explained how his company can provide Galileo System Time (GST) or Galileo UTC via existing networks.
By Peter Gutierrez
