Stefan Graham

Performance Engineer - European Space Agency (ESA)

European Space Technology Centre (ESTEC), Netherlands | 2020 - Current

• Applied advanced wireless communication techniques to enhance AIS detection and demodulation.
• Developed SAR-AIS data fusion tools based on constant false alarm rate (CFAR) hypothesis testing.
• Conducted research into an experimental algorithm for source separation of colliding AIS signals using deep learning.
• Led the AIS verifications activities in preparation for the launch of Sentinel-1 C/D including implementation of the data validation toolboxes and management of external industrial partners.
• Delivered algorithms to the ground segment team for processing the AIS data and defined the end-user product specification.
• Implemented an end-to-end AIS payload data simulator for performance verification.
• Initiated and coordinated collaborations with universities, research institutes and other teams within ESA leading to improved knowledge exchange.
• Participated in satellite testing in the industrial clean rooms and conducted the subsequent analysis of test results.
• Defined and reviewed requirements for the Sentinel-1 Next-Generation mission (2032) ensuring alignment with technological advancements and mission objectives.

BSc. & MSc. Earth and Space Physics and Engineering

Technical University of Denmark (DTU), Copenhagen | 2014 - 2020

MSc thesis: Implementation of a Persistent Scatterer Interferometric-SAR (PSI) algorithm for the measurement of ground subsidence

BSc thesis: Optimal Interpretation and Decomposition of X-Ray Fluorescence Spectra