Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2025, V. 22, No. 6, pp. 89-99
The use of multi-pass monostatic side-view SAR in interferometric estimation of Earth surface displacements
M.I. Babokin
1 , P.E. Shimkin
2 , V.G. Stepin
2 1 JSC Aerocon, Zhukovsky, Moscow Region, Russia
2 National Research University "Moscow Power Engineering Institute", Moscow, Russia
Accepted: 24.08.2025
DOI: 10.21046/2070-7401-2025-22-6-89-99
The article considers the design features and main characteristics of a radar interferometric complex for Earth remote sensing (ERS) based on a multi-pass monostatic satellite synthetic aperture radar (SAR) operating in the side-view mode. The operating conditions and requirements for information support for the system of differential phase-difference processing of signals obtained from interferometric SAR (ISAR) data are determined. The operability of the proposed approach to constructing a complex for detecting vertical displacements of the Earth surface using real radio holograms obtained from open ERS data is verified. Experimental results are presented on displaying vertical displacements of the underlying Earth surface by applying multi-time phase-difference processing of paired signals by the differential interferometry method using a multi-pass monostatic side-view satellite SAR. The method presented in this work for differential interferometry using differential ISAR allows relatively detailed and accurate measuring of vertical displacements of the Earth surface with multi-temporal organization of observation.
Keywords: synthetic aperture radar, SAR, differential interferometric SAR, DISAR, phase-difference interferometry method, experimental results
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