Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (5): 1351-1358.doi: 10.12305/j.issn.1001-506X.2023.05.11

• Sensors and Signal Processing • Previous Articles    

End-to-end radar signal sorting based on deep segmentation

Tao CHEN1,2, Fuyue LIU1,2, Jinxin LI1,2,*, Yu LEI1,2   

  1. 1. College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
    2. Key Laboratory of Advanced Marine Communication and Information Technology, Ministry of Industry and Information Technology, Harbin 150001, China
  • Received:2021-12-28 Online:2023-04-21 Published:2023-04-28
  • Contact: Jinxin LI

Abstract:

Aiming at the problem that the traditional radar signal sorting method relies heavily on preset parameters and prior information and the problem of inflexible structure, an end-to-end radar signal sorting method based on deep segmentation is proposed. Firstly, collected pulse description words (PDWs) are mapped into pulse sequence images, while retaining the index of the pixel to the pulse. Secondly, the trained depth segmentation U-Net model segments the pulse sequence image to obtain the pixel classification results. Finally, all pulses are searched and sorted according to the pixel index and the pixel classification results. The whole process is carried out in an end-to-end manner. Experiments show that this method can strengthen the classification ability to sort parameters of radars such as frequency agile radar, pulse group agile radar, and other unknown electromagnetic environments with severe time-frequency domain aliasing and severe pulse loss.

Key words: radar signal sorting, end-to-end, pulse description word (PDW), U-Net model

CLC Number: 

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