How GPS works? Trilateration explained

Of course, as a Nautical Specialist, I also deal with the international discussion on the advantages and disadvantages of satellite-based navigation, e-navigation and conventional terrestrial and astronomical navigation.

In my announced sequel, the second part of GPS, it is primarily about the technical and physical operational and functional limitations to which GPS is subject. These limitations, in part, have serious implications for the accuracy of GPS, and even go as far as limiting the functionality of GPS in its functions or even making it impossible. In doing so,

The vulnerability of GNSS in shore-based use is definitely different and to be regarded as much more risky than on the high seas.

On April 20, 2026, the Columbia River Bar Pilots conducted a MOB drill with the U.S. Coast Guard Station Astoria.

This my attempt to do just that. This is a summary of all scientific papers and articles that I could find about the ship’s pivot point. I have added links to any videos associated with the publications and have also included any useful diagrams or equations that the authors published to help explain their research.

Article by Seyed Behbood Issa-Zadeh & Claudia Lizette Garay-Rondero

Neuer Studiengang ab dem Wintersemester 2024/2025!
New degree programme from winter semester 2024/2025!

Maritime pilots work in an irregular deployment system (rotation system) with unpredictable work assignments under high levels of physical and mental stress. Fatigue or chronic diseases, e.g. coronary heart disease, peptic ulcers or gastritis can occur as a consequence.

Going Beyond Borders. The first oversized Kasko (120m x 40m) passed the Holtenau locks at Kiel on her way from the Neptun shipyard in Rostock to Meyer shipyard in Papenburg.
The planning and simulation study on this towage has been performed by NAUTITEC and KOTUG, with the great assistance of pilots and Kiel canal authorities on behalf of Meyer shipyard.
Produced by AVE-Solutions in order of Nautitec, Kotug and Bijma Sleepdiensten.

The growing influence of AIS data and analytics has shed the light on the increasing demand for new, smarter solutions in the maritime domain. During this interactive session, we discuss with AIS industry experts how we can take oceans of data and turn it into streams of actionable intelligence for better decision-making and more efficient and transparent shipping.