Towards a field-ready HF-VHF ground-based ice penetrating synthetic aperture radar: Forward modelling and validation for SAR imaging

Hawkins, J.D.; Lok, L.B.; Brennan, P.V.; Nicholls, K.W. ORCID: https://orcid.org/0000-0002-2188-4509. 2022 Towards a field-ready HF-VHF ground-based ice penetrating synthetic aperture radar: Forward modelling and validation for SAR imaging. 2021 18th European Radar Conference (EuRAD). 389-392. https://doi.org/10.23919/EuRAD50154.2022.9784573

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Official URL: https://ieeexplore.ieee.org/document/9784573

Abstract/Summary

A ray-based 2D modelling approach is proposed to reduce computation times involved in the forward-modelling of deramped frequency-modulated continuous wave (FMCW) radar signals for subglacial ice features. The model generation procedure and link-budget are described, prior to validation and benchmarking of the ray-based approach using a commercial 3D FDTD simulator. The proposed model results in a reduced computation time of three orders of magnitude per range profile, for comparable power and phase outputs. This provides a highly efficient numerical method for investigating subglacial ice structures with more realistic sizes and features.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.23919/EuRAD50154.2022.9784573
Additional Keywords:	ice-penetrating radar, SAR, forward modelling
Date made live:	07 Jul 2022 08:07 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/532861

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.23919/EuRAD50154.2022.9784573

Additional Keywords:

ice-penetrating radar, SAR, forward modelling

Date made live:

07 Jul 2022 08:07 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/532861