Non-overlapping trajectory Multistatic SAR Coherent Change Detection

Date

2022-04-21

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Publisher

IET

Department

Type

Conference paper

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Format

Free to read from

Citation

Hagelberg A, Andre D, Finnis M. (2022) Non-overlapping trajectory Multistatic SAR Coherent Change Detection. In: IET Radar 2022: International Conference on Radar Systems, 24-27 October 2022, Edinburgh, Scotland

Abstract

Synthetic Aperture Radar (SAR) Coherent Change Detection (CCD) allows the detection of very small scene changes but is typically reliant on a high degree of similarity in the radar trajectories, with a small baseline. In the case of multistatic SAR imagery, such as those formed by a constellation of SAR satellites, the radar trajectories may have a greater baseline than those collected by a monostatic system such as an aircraft. This paper investigates the effects of multistatic trajectories on the measured coherence between imagery, and how this relates to the spatial frequency (K-space). In particular, the case where radar platform trajectories are greatly dissimilar, but where the K-space image supports still contains a high degree of overlap, is investigated. This paper uses multistatic SAR collections measured at the Ground Based SAR Laboratory at Cranfield University.

Description

Software Description

Software Language

Github

Keywords

synthetic aperture radar (SAR), K-space, fourier domain, coherent change detection (CCD), multistatic

DOI

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Attribution-NonCommercial 4.0 International

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