Journal of Radio Electronics. eISSN 1684-1719. 2025. ¹3

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DOI: https://doi.org/10.30898/1684-1719.2025.3.5

 

 

 

ALGORITHM FOR RESOLVING PHASE AMBIGUITY
IN ESTIMATING PARAMETERS OF GROUND MOVING
OBJECTS

 

V.G. Stepin1, M.I. Babokin1,2, P.E. Shimkin1

 

1 National Research University «MPEI»,
111250, Russia, Moscow, Krasnokazarmennaya str., 14

2 JSC «AEROCON»,
140181, Russia, Zhukovsky, Zhukovsky str., 1

 

The paper was received November 28, 2024.

 

Abstract. The scheme and main characteristics of an aerospace SAR-interferometer for remote sensing of the Earth's surface operating in telescopic mode are considered. An algorithm for resolving phase ambiguity when estimating radial and tangential velocities of ground moving objects is proposed. The effectiveness of this method was tested by simulation modeling in the Matlab environment. The possibility of using the proposed ambiguity resolution method conjunction with multidimensional difference-phase processing for estimating parameters of moving objects is demonstrated. Experimental results on the detection and velocity estimation of moving objects using interferometric processing and algorithm for resolving phase ambiguity for radio holograms recorded on an aviation platform and received through two spatial channels.

Key words: synthetic aperture radar, single-pass interferometer, simulation modeling, interferometric processing, moving object, phase ambiguity.

Financing: The study was supported by a grant from the Russian Science Foundation No. 24-29-00507, https://rscf.ru/project/24-29-00507/

Corresponding author: Stepin Vitaliy Grigorievich, vitalii.stepin@mail.ru

 

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For citation:

Stepin V.G., Babokin M.I., Shimkin P.E. Algorithm for resolving phase ambiguity in estimating parameters of ground moving objects. // Journal of Radio Electronics. – 2025 – ¹ 3. https://doi.org/10.30898/1684-1719.2025.3.5 (In Russian).