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Acta Armamentarii ›› 2023, Vol. 44 ›› Issue (4): 949-959.doi: 10.12382/bgxb.2021.0880

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A Method for Specific Communication Emitter Identification Based on Multi-Domain Feature Fusion

WANG Jian, ZHANG Bangning, ZHANG Jie, WEI Guofeng, GUO Daoxing*()   

  1. College of Communications Engineering, Army Engineering University of PLA, Nanjing 210007, Jiangsu, China
  • Received:2021-12-29 Online:2023-04-28
  • Contact: GUO Daoxing

Abstract:

To solve the problem of low identification rate caused by specific communication emitter identification using a single feature, a method for individual identification of the communication emitter based on multi-domain feature fusion is proposed. Firstly, multiple transform domain features of the signals transmitted by the communication emitter are extracted, and these features are combined into multi-domain features.Secondly, the multi-channel convolution neural network is constructed, and the multi-channel convolution operation is carried out to extract the multi-domain features at a deep level. Finally, specificcommunication emitter classification is completed using the neural network classifier.Compared with the identification method based on a single feature, this method makes full use of the multi-domain features of the signals sent by the communication emitter and combines the powerful microscopic feature mining capability of the neural network to realize the effective individual identification of the communication emitter. Through the identification of 20 CC2530 devices under the conditions of low signal-to-noise ratio(SNR) and Rayleigh channel, the results show that the proposed method can significantly improve the identification accuracy and timeliness under a low SNR, and that the identification effect can still reach 91.01% under the condition of 0dB.

Key words: communication emitter identification, feature fusion, multi-channel convolution neural network