Journal of Jilin University(Engineering and Technology Edition) ›› 2025, Vol. 55 ›› Issue (3): 1103-1110.doi: 10.13229/j.cnki.jdxbgxb.20230609

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Staged suppression of main⁃lobe compound interference using airborne distributed arrays

Liu-bo HU1(),Jian-xin WU1(),Quan-hua LIU2,3,Lei ZHANG1   

  1. 1.School of Electronics and Communication Engineering，Sun Yat-sen University，Shenzhen 518107，China
    2.School of Information and Electronics，Beijing Institute of Technology，Beijing 100081，China
    3.Beijing Institute of Technology Chongqing Innovation Center，Chongqing 401135，China
  • Received:2023-06-14 Online:2025-03-01 Published:2025-05-20
  • Contact: Jian-xin WU E-mail:hulb3@mail2.sysu.edu.cn;wujx65@mail.sysu.edu.cn

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Abstract:

For the compound jamming scenario where noise suppression jamming and interrupted sampling repeater jamming simultaneously exist， a method of staged suppression of them using distributed arrays was proposed. Firstly， non-uniform samples are selected using the generalized inner product. By iteratively applying this method in a staged selection process， the statistical feature estimates of noise suppression interference and slice-repeater interference were obtained respectively. Then the robust suppression of the compounded jamming was completed using the distributed array spatial domain adaptive processing. Finally，with typical configuration of parameters， the effectiveness and performance of the proposed method was validated and analyzed through numerical simulation experiments.

Key words: signal and information processing, airborne radar, main-lobe interference suppression, compound interference suppression, generalized inner product

CLC Number: 

  • TN957

Fig.1

Airborne distributed radar system detection illustration"

Fig.2

Training data picking approach"

Fig.3

Interference pattern judgment results using GIP"

Fig.4

Filtering results of different methods under compound interference scenarios"

Fig.5

Suppression results of dense false target interference under compound interference scenarios"

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