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Micro‐Doppler effect removal for inverse synthetic aperture radar imaging based on augmented Lagrange multipliers
Author(s) -
Hongxin Yang,
Fulin Su
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32636
Subject(s) - inverse synthetic aperture radar , computer science , inverse , lagrange multiplier , radar imaging , synthetic aperture radar , radar , algorithm , rank (graph theory) , computer vision , mathematical optimization , mathematics , telecommunications , geometry , combinatorics
Micro‐Doppler (MD) effect may decrease the readability of inverse synthetic aperture radar (ISAR) imaging results, so it is more desirable to solve the problem of MD effect removal. To overcome this issue, a new algorithm based on Augmented Lagrange Multipliers (ALM) is proposed in this paper. In our study, the MD effect in ISAR image is proven to be of low‐rank. Therefore, the MD effect can be removed by the ALM algorithm. In addition to being capable of separating the MD effect from ISAR image, the proposal is robust to a low signal to noise ratio (SNR). Comprehensive experiments are provided to illustrate the effectiveness of the proposed method.