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University of Southampton

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PhD in Gravity-Map Matching for Navigation in GNSS-Denied Environments University of Southampton in United Kingdom

Degree Level

PhD

Field of study

Geology

Funding

The project is competition funded. It is associated with the EPSRC/MOD Centre for Doctoral Training in Complex Integrated Systems for Defence and Security; the advert does not state a stipend amount or detailed tuition-fee coverage.

Deadline

Dec 18, 2026

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Country

United Kingdom

University

University of Southampton

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Keywords

Geology
Mechanical Engineering
Experimental Physics
Electrical Engineering
Aerospace Engineering
Geophysics
Earth Science
Sensor Fusion
Robotics
Autonomous System
Physics

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About this position

This PhD project investigates whether Earth’s gravity can support autonomous navigation when Global Navigation Satellite Systems (GNSS) are unavailable. The research will develop gravity-map matching methods for underwater and space vehicles, using local gravity variations as an independent reference for estimating position.

You will develop and characterise gravimeters based on diamagnetic levitation, building on demonstrations of Earth-tide gravimetry and the OpToSpace payload. A central challenge is extracting reliable gravity or gravity-gradient signals while a platform is moving, vibrating, changing orientation and experiencing hydrodynamic loading. The work may combine sensor stabilisation, inertial-sensor fusion, signal processing and gravity-field modelling.

The project will investigate navigation for autonomous underwater vehicles, including integration requirements and testing in representative maritime conditions. It connects with planned shipborne gravimetry and gradiometry trials involving the Royal Navy experimental vessel XV Patrick Blackett. You will also assess applications to space navigation through orbital gravity models and navigation simulations.

Expected research outputs include a characterisation of sensor performance on moving platforms, a gravity-aided navigation and map-matching pipeline, and an assessment of the approach in GNSS-denied environments. The interdisciplinary research spans experimental physics, autonomous systems, geophysics and navigation, with links to defence, subsea infrastructure and surveying. The project is based within the University of Southampton’s Faculty of Engineering and Physical Sciences and benefits from the interdisciplinary environment and defence-sector connections of the EPSRC/MOD Centre for Doctoral Training in Complex Integrated Systems for Defence and Security.

Funding details

The project is competition funded. It is associated with the EPSRC/MOD Centre for Doctoral Training in Complex Integrated Systems for Defence and Security; the advert does not state a stipend amount or detailed tuition-fee coverage.

What's required

Applicants should hold a 2:1 honours degree. The project involves experimental physics, sensor development, gravity modelling, navigation algorithms, autonomous systems and geophysics; the advert does not specify additional mandatory qualifications.

How to apply

Review the project and full entry requirements on the University of Southampton project page, then submit a PhD application through the university's postgraduate research application process before 18 December 2026.

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