A Concept for an Interferometric SAR Mission with Sub-daily Revisit

Conference paper (2024)

Authors

Jalal Matar Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Maria J. Sanjuan-Ferrer Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
Marc Rodriguez-Cassola Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
S.C. Steele-Dunne Mathematical Geodesy and Positioning - CEG
Francesco de Zan Delta Phi Remote Sensing GmbH
Research Group
Mathematical Geodesy and Positioning (CEG) (TU Delft)
SAR Sub-daily revisit Earth Explorer
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Published Date

2024

Language

English

Reuse Rights

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Remote Sensing

Research Group

Mathematical Geodesy and Positioning

Abstract

This paper introduces a SAR mission concept uniquely designed for sub-daily interferometric-compatible revisits, essential for the timely monitoring of ecosystem water status in regions of significant scientific, ecological, societal, and economic value. The key concept is based on the strategic deployment of a constellation of several small satellites in short-revisit low-Earth orbits, equipped with low complexity SAR payloads to enhance efficiency and minimize overall costs. In particular, L-band SARs with decametric spatial resolution and sub-daily revisit will be considered. The paper provides an overview of the mission requirements, technical concept, scientific relevance, and acquisition potential. The analysis is based on a study conducted in the frame of an ESA Earth Explorer 12 mission proposal titled "SLAINTE" [1].