This work presents an algorithm to improve the estimation of the position in indoor environments when using an Ultrasonic Local Positioning System (ULPS). This system is composed of several beacons, ...

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

It is noted that though AFM possesses imaging capability up to nanometer resolution, it is hard to achieve nanometer level positioning precision due to the existing system variability, especially the ...