ArkEdge Space, a Tokyo-based space start-up delivering end-to-end micro-satellite constellation solutions from design to operations, announced that it has completed a study commissioned by JAXA on “Elemental Technologies and Systems for a Dedicated, GNSS-Independent LEO-PNT Satellite System.”
Positioning, Navigation and Timing (PNT), currently derived from Global Navigation Satellite Systems (GNSS) such as the US Global Positioning System (GPS), is vital to everyday life, from financial transactions to telecommunications and infrastructure. But this critical infrastructure is increasingly subject to interruption and interference, both through environmental and security challenges. Finding methods to protect PNT information against such interference is of paramount importance for governments and commercial actors alike.
This project addressed such challenges by examining and categorizing the necessary elemental technologies, including signal design, receiver technology, ground infrastructure, satellite sensors, and the overall system architecture required to realize a LEO-PNT system capable of providing PNT without reliance on traditional GNSS.
