Infrared and Laser Engineering, Volume. 50, Issue 7, 20200337(2021)

Application of Gaussian process model in SAR image target recognition

Shanshan Shang1... Zikai Yu2, Tao Fan3,* and Limin Jin4 |Show fewer author(s)
Author Affiliations
  • 1Library, Shanghai University of Engineering Science, Shanghai 201620, China
  • 2Assembly Department, Shanghai Aerospace Equipments Manufacturing Co., Ltd., Shanghai 200245, China
  • 3Institute of Artificial Intelligence Industry, Shanghai University of Engineering Science, Shanghai 201620, China
  • 4Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
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    The Gaussian process model was applied to synthetic aperture radar (SAR) image target recognition. Gaussian process model was a statistical learning algorithm based on the Bayesian framework, which combines the kernel function and probability judgement to build the classification model. Compared with the traditional classification models, the Gaussian process model could achieve higher classification accuracy and precision. In the implementation of target recognition, the feature vectors from SAR images were used as the inputs while the target labels were employed as the outputs thus training the Gaussian process model. For the test sample to be classified, the posterior probabilities related to different classes were calculated thus determining its target label. In the experiments, typical situations were set up to test the proposed method using the MSTAR dataset. According to the experimental results, the proposed method could achieve 99.28% recognition accuracy for 10 types of targets under standard operating conditions. The average recognition rates at 30° and 45° depression angles were 98.04% and 73.13%, respectively. Under noise corruption, the best performance was achieved by the proposed method at each noise level. The results validated the effectiveness and robustness of the proposed method.

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    Shanshan Shang, Zikai Yu, Tao Fan, Limin Jin. Application of Gaussian process model in SAR image target recognition[J]. Infrared and Laser Engineering, 2021, 50(7): 20200337

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    Paper Information

    Category: Lasers & Laser optics

    Received: Mar. 10, 2021

    Accepted: --

    Published Online: Aug. 23, 2021

    The Author Email: Fan Tao (lotus_summer117@163.com)

    DOI:10.3788/IRLA20200337

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