Global Navigation Satellite Systems Engineering, Policy, and Design
Recent bipartisan legislation aims to make satellite communication and PNT services more available to farmers.
By Brett Davis
The European Agency for the Space Program (EUSPA) is moving forward with its rollout of the free Galileo high accuracy service (HAS). Speaking at the recent HAS Days event in Spain, EUSPA’s Carmen Aguilera said, “Galileo HAS is user driven, as is the case for all European space programs. Our goal is to make sure that the services we are delivering are tailored to meet the needs of the users and the industries that will employ them in their businesses.”
By Peter Gutierrez
The European Space Agency (ESA) low Earth orbit (LEO)-PNT satellite program, approved at last year’s (2022) ESA ministerial conference, will soon begin testing a mini-constellation of at least ten satellites, placed in orbit some hundreds of kilometers above the Earth’s surface. Conventional GNSS systems, like those used by Europe’s Galileo program, utilize medium Earth orbit (MEO) satellites, about 23,000 kilometers from Earth.
By Peter Gutierrez
The Pentagon has requested $1.3 billion in its fiscal 2024 budget for bolstering the GPS system, preparing new satellites for launch and moving to a new control system. The biggest changes will come with the new GPS IIIF satellites, still a few years away.
By Brett Davis
Space is a mess. That according to the European Space Agency (ESA), which estimates there are 36,500 pieces of space debris orbiting the earth of greater than 10cm in size, and one million pieces between 1cm and 10cm. The number of smaller yet still dangerous objects is too staggering to contemplate.
By Peter Gutierrez
Following on from the GEODE project, NAVGUARD is the EU’s 56-million-euro initiative aimed at providing a space- and ground-based surveillance system, as well as mobile PRS receivers and other innovative technologies to improve the integrity and resilience of the Galileo Public Regulated Service (PRS).
By Peter Gutierrez
Managed by FDC under the aegis of the Belgian, French, German, Italian and Spanish ministries of defence, GEODE the largest and one of the most ambitious defence cooperation projects launched under the umbrella of the European Commission’s European Defence Industrial Development Program (EDIDP).
By Peter Gutierrez
Offshore applications can now rely on higher accuracy and faster convergence through Apex PRO Correction Services from Hexagon | Veripos.
By Inside GNSS
Identifying seismic signals in GNSS reference stations using machine learning.
By Inside GNSS
A: While GPS satellite faults have always been infrequent, they have become rarer in the past decade due to the maturity of the GPS constellation and its Operational Control Segment (OCS). Lessons learned from past GPS satellite failures have also aided the development of newer GNSS constellations such as the European Galileo.
By Inside GNSS
Why the timekeeping and GNSS communities should start preparing.
By Inside GNSS
A look at the state of 5G NR NTN.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
