Next-generation cellular networks could witness the creation of smart radio environments (SREs), where walls and objects will be coated with reconfigurable intelligent surfaces (RISs) to strengthen communication localization performance. In fact, RISs have been recently introduced not only overcome blockages due obstacles but also for high-precision mobile users in GPS denied environments, e.g....

The orientation of the mitotic spindle determines the relative size and position of the daughter cells and influences the asymmetric inheritance of localized cell fate determinants. The onset of mammalian neurogenesis, for example, coincides with changes in spindle orientation. To address the functional implications of this and related phenomena, precise methods for determining the orientation ...

Passive vision techniques to estimate aircraft position during landing can be developed using a runway model, images acquired by onboard imaging sensor, orientation information provided by the inertial navigation system and the position estimate provided by devices such as the global positioning system. In this paper expressions are derived for the sensitivity of point features to errors in the...

A new algorithm for filtering distortions of the deep image starry sky is considered to improve accuracy determining position star - detection centroid. An increase in measuring orientation parameters spacecraft by stellar sensors being investigated. The method calculations using exact estimation centroid applied, restoring function scatter points from recorded astronomical images. Minimization...