Specific emitter identification using geometric features of frequency drift curve

• Autorzy: Zhao Y. , Wui L. , Zhang J. , Li Y.

Identyfikatory

DOI

10.24425/119063

• Języki publikacji: EN

Abstrakty

EN

Specific emitter identification (SEI) is a technique for recognizing different emitters of the same type which have the same modulation parameters. Using only the classic modulation parameters for recognition, one cannot distinguish different emitters of a same type. To solve the problem, new features urgently need to be developed for recognition. This paper focuses on the common phenomenon of frequency drift, defines geometric features of frequency drift curve and, finally, proposes a practical algorithm of specific emitter identification using the geometric features. The proposed algorithm consists of three processes: instantaneous frequency estimation based on the adaptive fractional spectrogram, feature extraction of frequency drift curve based on geometric methods for describing a curve and recognition process based on support vector machine. Simulation results show that the identification rate is generally more than 98% above –5 dB of signal to noise ratio (SNR), and real data experiment verifies the practical performance of the proposed algorithm.

Słowa kluczowe

EN

specific emitter identification; geometric features; frequency drift; adaptive fractional spectrogram; support vector machine

PL

emiter; cechy geometryczne; dryf częstotliwości; spektrogram

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2018
• Tom: Vol. 66, nr 1
• Strony: 99--108
• Opis fizyczny: Bibliogr. 30 poz., rys., wykr., tab.

Twórcy

autor

Zhao Y.

• School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, China

autor

Wui L.

• School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, China

autor

Zhang J.

• School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, China

autor

Li Y.

• R&D Centre, Chinese Academy of Launch Vehicle Technology, Beijing, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).