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ISSN (Print): 2352-0965
ISSN (Online): 2352-0973

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Research Article

SAR Target Recognition Method based on Adaptive Weighted Decision Fusion of Deep Features

Author(s): Xiaoguang Su*

Volume 17, Issue 8, 2024

Published on: 10 October, 2023

Page: [803 - 810] Pages: 8

DOI: 10.2174/0123520965262459231002051022

Price: $65

Abstract

Background: This paper proposes a synthetic aperture radar (SAR) target recognition method based on adaptive weighted decision fusion of multi-level deep features.

Methods: The trained ResNet-18 is employed to extract multi-level deep features from SAR images. Afterwards, based on the joint sparse representation (JSR) model, the multi-level deep features are represented to obtain the corresponding reconstruction error vectors. Considering the differences in the abilities of different levels of features to distinguish the target, the reconstruction error vectors are analyzed based on entropy theory, and their corresponding weights are adaptively obtained. Finally, the fused reconstruction error result is obtained through adaptively weighted fusion, and the target label is determined accordingly.

Results: Experiments are conducted on the Moving and Stationary Target Acquisition and Recognition (MSTAR) dataset under different conditions, and the proposed method is compared with published methods, including multi-feature decision fusion, JSR-based decision fusion and other types of ResNets.

Conclusion: The experimental results under standard operating condition (SOC) and extended operating conditions (EOCs) including depression angle variance and noise corruption validate the advantages of the proposed method.

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Graphical Abstract

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