Title
Multi-Aspect Sar Target Recognition Based On Prototypical Network With A Small Number Of Training Samples
Abstract
At present, synthetic aperture radar (SAR) automatic target recognition (ATR) has been deeply researched and widely used in military and civilian fields. SAR images are very sensitive to the azimuth aspect of the imaging geomety; the same target at different aspects differs greatly. Thus, the multi-aspect SAR image sequence contains more information for classification and recognition, which requires the reliable and robust multi-aspect target recognition method. Nowadays, SAR target recognition methods are mostly based on deep learning. However, the SAR dataset is usually expensive to obtain, especially for a certain target. It is difficult to obtain enough samples for deep learning model training. This paper proposes a multi-aspect SAR target recognition method based on a prototypical network. Furthermore, methods such as multi-task learning and multi-level feature fusion are also introduced to enhance the recognition accuracy under the case of a small number of training samples. The experiments by using the MSTAR dataset have proven that the recognition accuracy of our method can be close to the accruacy level by all samples and our method can be applied to other feather extraction models to deal with small sample learning problems.
Year
DOI
Venue
2021
10.3390/s21134333
SENSORS
Keywords
DocType
Volume
synthetic aperture radar (SAR), automatic target recognition (ATR), multi-aspect SAR, prototypical network, small number of training sample
Journal
21
Issue
ISSN
Citations 
13
1424-8220
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Pengfei Zhao1109.72
Lijia Huang200.34
Yu Xin301.01
Jiayi Guo400.34
Zongxu Pan5748.13