Astronomers have chased hypervelocity stars for more than a century. These rare objects move so fast that the Milky Way ...

Learn the key physics definitions of position, displacement, velocity, and acceleration explained clearly and simply. This quick breakdown helps build a strong foundation for understanding motion in ...

Abstract: In multi-robot systems, accurate relative localization is indispensable for executing collaborative tasks in GPS-denied environments. This paper focuses on the relative localization problem ...

Abstract: This article investigates the problem of acoustic indoor localization in dense non-line-of-sight (NLOS) environments by using range and relative velocity measurements obtained from received ...

Spacecraft navigation explained with radio tracking, optical systems, and autonomous methods that enable deep space ...