Title
Specific Emitter Identification Based On Multi-Level Sparse Representation In Automatic Identification System
Abstract
Illegally forged signals in automatic identification system (AIS) pose a threat to maritime traffic safety management. In this paper, a multi-level sparse representation based identification (MSRI) algorithm is proposed for specific emitter identification (SEI) in the AIS. The MSRI innovatively combines neural networks with sparse representation based classification (SRC). Channel attention mechanism is introduced to a multi-scale convolutional neural network (CNN) for extracting hidden features in the signal. These extracted features are divided into shallow and deep features according to the depth of the network layer they are extracted from. The original AIS signals and the two-level features are spliced together to form a multi-level dictionary. Subsequently, a sparse representation based identification is performed on the decorrelated multi-level dictionary using the principal components analysis (PCA) method. The proposed MSRI is evaluated on a dataset composed of real-world AIS signals, and compared with the state-of-the-art identification algorithms. The evaluation is based on several factors including computational complexity, number of training samples, and number of emitters. Numerical results indicate that the proposed algorithm can identify emitters with higher accuracy and requires lower training time compared to other methods. Given more than 15 training samples at each emitter, the MSRI can identify nine emitters with an accuracy higher than 90%.
Year
DOI
Venue
2021
10.1109/TIFS.2021.3068010
IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY
Keywords
DocType
Volume
Feature extraction, Artificial intelligence, Transient analysis, Training, Neural networks, Dictionaries, Steady-state, Automatic identification system, convolutional neural network, multi-level sparse representation based identification, specific emitter identification
Journal
16
ISSN
Citations 
PageRank 
1556-6013
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Yunhan Qian100.34
Jie Qi202.03
Xiaoyan Kuai3274.41
Guangjie Han41890172.76
sun haixin51411.33
Shao-Hua Hong6206.22