Global Navigation Satellite Systems Engineering, Policy, and Design
Whether you’re talking about a confused adult, a lost child, a hiker in the mountains or even an astronaut in distress, having the world’s best technology available can be the difference between life and death during a search and rescue (SAR) mission.
By Stan Goff
At next week’s Precise Time and Time Interval Systems and Applications (PTTI) annual conference sponsored by ION, attendees can take part in a technical program designed to disseminate and coordinate PTTI information at the user level, review present and future PTTI requirements, inform government and industry engineers, technicians, and managers of precise time and frequency technology and its problems, and provide an opportunity for an active exchange of new technology associated with PTTI.
By Stan Goff
The European GNSS Agency (GSA) is organizing a public consultation on the Integrity & Reliability of Digital Maps for Connected and Automated Driving, in connection with the recently published Commission Communication on Connected and Automated Mobility. The public consultation is open until January 27, 2019.
By Inside GNSS
The U.S. Air Force awarded Lockheed Martin the GPS Control Segment Sustainment II (GCS II) contract to continue to sustain and further modernize the Global Positioning System (GPS) satellite constellation’s ground control system through 2025. This is the follow-on contract to Lockheed Martin’s current GCS contract awarded in 2013.
By Inside GNSS
Smartphones are seemingly omnipresent in our everyday lives. But new usage suggests that these mighty miniature devices can utilize crowd sourcing to defeat GPS jamming. For the latest on this critical topic, make sure to register for this 90-minute webinar on January 22 that will explore and compare the potential and current limitations of using smartphone density, ease of deployment and signal utility against the capabilities of dedicated networks.
By Inside GNSS
Veteran journalist, consultant and educator Abe Peck has joined Autonomous Media as Executive Editor of Inside Unmanned Systems and Inside GNSS. The magazines cover autonomous vehicles from ground to air to sea, and the satellite navigation that empowers them.
By Inside GNSS
Manassas, Virginia, January 8, 2019–Due to the extended impasse between U.S. Congressional leaders and the White House that has created a partial U.S. government shutdown, the Institute of Navigation (ION) has decided to postpone the Cognizant Autonomous Systems for Safety Critical Applications (CASSCA) Conference scheduled to take place January 28-29, 2019 at the Hyatt Regency Reston in Reston, Virginia.
By Inside GNSS
BLUEGNSS is a project developed in the framework of the Horizon 2020 (H2020) program involving four ANSPs of different European countries (Italy, Cyprus, Greece, and Malta) plus one industrial partner, IDS (Ingegneria Dei Sistemi). The project objective is to harmonize the implementation of PBN approach operations among the BLUE-MED FAB States. This article provides an overview of the phases required to reach this goal and focuses on GNSS performance assessment as recommended by ICAO.
By Inside GNSS
Snapshot positioning is a technique for determining the position of a Global Navigation Satellite System (GNSS) receiver using only a very brief interval of the received satellite signal, where the sampling time can be more than 100 milliseconds (ms) or even down to as little as 2 ms. In comparison, a conventional GNSS receiver may require anywhere between a few and tens of seconds of signal tracking before it is able to compute its first position.
By Mark Petovello
This article — Part 1 was published in the September/October 2018 issue — presents the authors’ experience in setting up an airborne pseudolite (UAVlite) with the needed ground-based infrastructure to perform code and phase ranging performance analysis. UAVlites transmit GNSS-like signals free from any local transmitter multipath (in contrast to ground-based transmitters) and can in principle be localized in real-time through a synchronized network of ground stations which may also broadcast the UAVlite positions in real-time.
By Günter W. HeinNovAtel’s Annual Journal of GNSS Technology Solutions and Innovation
