Collections and calls for papers

With the increase of cognitive capability, modern machines can offer solutions to problems for which absolute logical certainty cannot provide an answer. Generally, Artificial Intelligence (AI) refers to the...

Significant achievements have been made in GNSS integrity, especially in aviation, but many challenges remain. With increasing demands on more accurate positioning in difficult environments for new critical ...

This topical collection is dedicated to new theories, methods, and algorithms for weather and climate monitoring using the GNSS technology. Special focus thereby lies on innovative observation concepts based...

The GPS Toolbox is a topical collection dedicated to highlighting algorithms and source code utilized by GNSS engineers and scientists. This collection began in 1999 and was created to facilitate the open ex...

Space Weather is one of the major limiting factors for the precision and reliability of positioning, navigation, and timing (PNT) services from the global navigation satellite system (GNSS). Geomagnetic stor...

This Topical Collection focuses on satellite orbit determination, mainly supporting a wide range of space objects using ground-based tracking systems, such as the Global Navigation Satellite System (GNSS), S...

This Topical Collection covers all aspects of timing that involve space and space systems. Most of the papers will involve some aspect of or application of GNSS and will include constellation monitoring and ...