In this in-depth blog post, the author explores the various methods used in GPS positioning systems. They begin by explaining the simple method of positioning using just three reference points, and move onto using drones and even sound waves to measure distance. The author then delves into the challenges that arise when adding a third dimension and altitude, and how four spheres are needed to obtain precise coordinates. Overall, the article provides an interesting and informative look into the science behind GPS technology.
https://ciechanow.ski/gps/