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Acta Armamentarii ›› 2025, Vol. 46 ›› Issue (7): 240703-.doi: 10.12382/bgxb.2024.0703

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A Hybrid Analog-digital Adaptive Beamforming Method for Jamming Suppression

WANG Jun1,*(), HE Xiaoqi1, WANG Hao1, DONG Yuliang1, ZHANG Xue1, LUO Tao2, CHEN Peng2   

  1. 1 Beijing Research Institute of Mechanical and Electrical Technology, Beijing 100074
    2 School of Information Science and Engineering, Southeast University, Nanjing 210096, Jiangsu, China
  • Received:2024-08-15 Online:2025-08-12
  • Contact: WANG Jun

Abstract:

The anti-jamming capacity of traditional digital beamforming system is limited by the quantization accuracy of analog-to-digital converter (ADC).To address this situation,this paper proposes a hybrid analog-digital adaptive beamforming method.The interference signals are suppressed preliminarily by introducing the analog beamforming at the radio frequency channel,which prevents sampling saturation.Subsequently,the interference signals are suppressed with the digital beamforming technology.A hybrid analog-digital adaptive beamforming signal model is established.The proposed hybrid analog-digital method is theoretically derived,and its anti-interference performance is analyzed.The simulated results demonstrate that the proposed method can effectively reduce the impact of quantization accuracy and has the excellent performance for different interference intensities.Compared with traditional digital beamforming method,the superiority of the proposed method for blanket jamming suppression is also demonstrated.

Key words: jamming suppression, adaptive beamforming, analog-to-digital converter, hybrid analog-digital