Het gebruik van Dynamic positioning (DP) wordt op veel schepen toegepast waaronder op het schip de Aegir van het bedrijf Heerema Marine Contractors. Het DP systeem heeft hierbij een initiële positie input nodig wat verkregen wordt via GNSS plaatsbepalingssystemen. Aan boord van de Aegir bevinden zich …

The Global Positioning System has long been a great tool for militaryand, of course, civilianactivities, but the militarys heavy reliance on it also makes it a likely target. Due to the character of the satellite navigation system, security vulnerabilities exist that threaten information continuity and …

This article discusses the revival of the interferometric positioning experiment with GPS signals that aims at measuring the three-dimensional vector between two stations. Such an experiment was carried out in the late seventies, the early days of the GPS system, almost simultaneously by two competing …

In the article: "Base Line Performance of the Low Cost LORADD SP Receiver" also published in "Advances in military navigation technology" the authors discussed the basic performance of the LORADD SP receiver. One of the conclusions was that eLoran in its baseline configuration cannot serve as a back …

Global Navigation Satellite Systems (GNSS) currently dominate the Positioning, Navigation and Timing (PNT) community and there are no signs that this will change in the near future. But for many years the weeknesses of GNSS have been well known and besides research into GNSS a lot of research into back …