Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (10): 3321-3328.doi: 10.12305/j.issn.1001-506X.2023.10.37

• Communications and Networks • Previous Articles    

Open-set recognition algorithm for modulation signal based on RE-GAN

Bowei QIN, Lei JIANG, Hua XU, Weiyu NIU   

  1. Information and Navigation College, Air Force Engineering University, Xi'an 710077, China
  • Received:2021-10-27 Online:2023-09-25 Published:2023-10-11
  • Contact: Bowei QIN

Abstract:

In order to solve the problem of open-set low recognition accuracy of modulation signal under the lightweight model, a model of data reconstruction and extremum theory generative adversarial network is designed. This model includes a pair of adversarial networks: reconstructed network and discriminant network. Firstly, the reconstructed network uses the autoencoder to compress and reconstruct the signal, and compresses the high-dimensional data into low-dimensional representation. Then, the discriminant network extracts the features of the compressed data and establishes the activation vector set of all kinds of data to fit the extremum distribution. Finally, the probability of known and unknown modulation signals is calculated by extremum theory. The experiment results show that the proposed model can not only fully learn and express the known modulation signals, but also disturb the unknown modulation signals. When the signal to noise ratio is greater than 0 dB, the recognition accuracy of eight known modulation signals and two unknown modulation signals can reach 93%.

Key words: data reconstruction, extreme value theory, generative adversarial network (GAN), open-set recognition, activation vector

CLC Number: 

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