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Robust ISAR Cross-Range Scaling via Two-Step Rotation Velocity Estimation SCIE SCOPUS

Title
Robust ISAR Cross-Range Scaling via Two-Step Rotation Velocity Estimation
Authors
Ryu, Bo-HyunKang, Byung-SooLee, Myung-JunKim, Kyung-Tae
Date Issued
2021-10
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
To obtain exact size of non-cooperative target in ISAR images, an accurate cross-range scaling (CRS) should be performed. To do this, an image based approach, which exploits two sequential ISAR images based on the scale and rotational relationship between them, has been adopted in the existing ISAR CRS methods. However, they have two major problems: 1) unknown effective rotation center (ERC) of non-cooperative target, and 2) performance degradation owing to the scintillation of two ISAR images. To address these issues, in this paper, we propose a new CRS method, mainly consisting of two steps: 1) coarse estimation of rotation velocity (RV) in range-Doppler (RD) domain after feature extraction and matching, and 2) using the estimate in Step1, fine RV estimation via singular value decomposition (SVD) in range/cross-range (RC) domain. Furthermore, experimental results based on simulated and real measured data are provided to demonstrate the effectiveness of the proposed method.
URI
https://oasis.postech.ac.kr/handle/2014.oak/109505
DOI
10.1109/ACCESS.2021.3120677
ISSN
2169-3536
Article Type
Article
Citation
IEEE ACCESS, vol. 9, page. 148132 - 148143, 2021-10
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김경태KIM, KYUNG TAE
Dept of Electrical Enginrg
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