A-RNP

A-RNP, or Autonomous-Relative Navigation Performance, is a metric used in satellite navigation systems to measure how accurately a receiver can determine its position relative to other satellites or reference points without relying on external corrections. It assesses the quality and reliability of the positional information provided autonomously by the system, ensuring precise location data for applications like aviation, maritime, or terrestrial navigation. Essentially, A-RNP helps users understand how confidently they can trust their device to know where they are, based on the system's own calculations and satellite signals.