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Content Provider | IET Digital Library |
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Author | Han, Jie Zhang, Tao Ren, Dongfang Zheng, Xiaoyu |
Abstract | This paper develops a novel method for feature extraction of steady communication signals based on the distribution of bispectrum amplitude and phase (BAP) to solve the identification problem of the same type of emitters. First, a propagation model of communication signals is modeled by analyzing the mechanism of emitter fingerprint, and the irrelevance between bispectrum amplitude and phase is demonstrated. Then, onthe basis of estimating the signal bispectrum, bispectrum symmetry is used to adopt different methods to extract features according to their own characteristics of amplitude and phase spectrum. Finally, the simulated and actual communication signals from the same type of emitters are used for the experiment. The identification performance of BAP method is compared with another three methods in terms of antinoise performance, influence of the numberof training samples, and feature distribution. Theoretical analysis and experimental results show that the BAP method overcomes the shortcomings of SIB and SB methods, and the extracted features have good clustering and interclass separability, solvingthe identification problem of the same type of emitters under low SNR and small number of training samples. |
Starting Page | 1104 |
Ending Page | 1112 |
Page Count | 9 |
ISSN | 17518822 |
Volume Number | 11 |
e-ISSN | 17518830 |
Issue Number | Issue 8, Nov (2017) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-smt/11/8 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2017.0024 |
Journal | IET Science, Measurement & Technology |
Publisher Date | 2017-08-15 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Bispectrum Amplitude And Phase Distribution Communication Emitter Identification Communication Signal Propagation Model Computer Vision And Image Processing Technique Data Handling Technique Emitter Fingerprint Feature Extraction Fingerprint Identification Identification Problem Image Recognition Selected Bispectrum Signal Classification Signal to Noise Ratio Steady Communication Signal |
Content Type | Text |
Resource Type | Article |
Subject | Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering |
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