Research ThemesAutonomous Sensing PlatformsSensor Signal ProcessingAimOptimise PNT as a Service using satellite signals of opportunity (SoOP) across LEO/MEO/GEO.ObjectivesEstablish a testbed that will enable PNT services using satellite SoOP.Benchmark the performance of PNT services using satellite SoOP against GNSS-based systems.Optimise data management of a the system for performance and robustnessDevelop AI-driven models for the selection of the optimum SoOP to be used in a PNT as a Service scenarioDescriptionGNSS-enabled positioning, navigation, and timing (PNT) is under increasing threats from interference and spoofing. Satcom systems offer signals of opportunity (SoOP) that can be used to deliver PNT services. They come from an abundant number of satellites across LEO/MEO/GEO, each offering distinct advantages in terms of signal strength or coverage. SoOPs are also available across a wide range of frequencies (from C-band to Ka-band) and multiple angular directions, thus making SoOPs a highly reliable option of pervasive PNT services.This project will access a UK-wide network of monitoring and reference stations publishing SoOPs across C-, Ku- and Ka-bands. Data from this network will be used in conjunction with signals captured at a user terminal to deliver and benchmark PNT. The data management aspects of such a system will be investigated to optimise performance. AI-driven algorithms for selecting optimum usage of the proposed system will be developed and evaluated. Industry PartnerThis project will be in collaboration with PNTaas Further information https://space.site.hw.ac.uk/ Closing date:  31 Jan, 2026 Apply now Principal Supervisor Prof George Gousettis Assistant Supervisor Assistant Prof Kieran O'Leary Eligibility Minimum entry qualification - an Honours degree at 2:1 or above (or International equivalent) in a relevant science or engineering discipline, possibly supported by an MSc Degree. Further information on English language requirements for EU/Overseas applicants. Funding Full funding is available for this position. Informal Enquiries spads@ed.ac.uk