Asynchronous One-Way Range Measurement Applied to Microspace Probes

Abstract

This paper presents a one-way range measurement method using an asynchronous communication scheme that is derived from Global Navigation Satellite Systems (GNSS) such as that represented by the Global Positioning System (GPS). The method does not require a transponder aboard a spacecraft and functions without a phase delay measurement facility using a highly stable clock on the ground. Besides, the method enables not only the range measurement but also the clock synchronization as well. This paper presents how it works and shows how it is practically applied to small and low-cost microspace probes flying in cislunar space and near-Earth interplanetary field. Semi-real-time positioning feasibility in cislunar space is also discussed. Show more