Computer and Modernization ›› 2020, Vol. 0 ›› Issue (08): 14-20.doi: 10.3969/j.issn.1006-2475.2020.08.003

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Simulation Method of Target SAR Image Based on  Spectral Normalization Generative Adversarial Network

  

  1. (1. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
  • Online:2020-08-17 Published:2020-08-17

Abstract: In order to solve the data sparse problem in Synthetic Aperture Radar (SAR) Automatic Target Recognition (ATR), this paper proposes a simulation method of target SAR images based on SN-GAN (Spectral Normalization Generative Adversarial Network). The method obtains the scattering intensity distribution maps by constructing the coupled physical model among target, scene and radar, then refines the scattering intensity distribution maps by using SN-GAN to generate the high-quality simulated SAR images. The similarity evaluation of the simulated images is carried out by 3 kinds of similarity evaluation algorithms to verify the effectiveness of the simulation method. Finally, through multiple sets of SAR ATR experiments, it is verified that adding simulated SAR images optimized by SN-GAN to the training set can effectively alleviate the data sparse problem and improve the accuracy of the classification algorithms.

Key words: SAR image, image simulation, SN-GAN

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