Research on robust time domain wideband null beamforming interference suppression

Honglin Zhao; Yunbo Hao; Wenjin Liu; Zeng Liang

doi:10.1117/12.2640111

1 August 2022 Research on robust time domain wideband null beamforming interference suppression

Honglin Zhao, Yunbo Hao, Wenjin Liu, Zeng Liang

Proceedings Volume 12257, 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022); 122570U (2022) https://doi.org/10.1117/12.2640111
Event: 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022), 2022, Guangzhou, China

Abstract

Time domain broadband beamforming algorithm can improve the processing performance of sonar array system because it can output continuous waveforms in time domain. In view of the narrow null suppression in the interference direction and the shallow null depth limited by the interference power in traditional beamforming, an algorithm based on null broadening and null deepening is proposed to improve the robustness of the beam in the interference direction, and the time-domain waveform distortion suppression of the beamformer is increased by reducing the main lobe width, The simulation results show its effectiveness.

Citation Download Citation

Honglin Zhao, Yunbo Hao, Wenjin Liu, and Zeng Liang "Research on robust time domain wideband null beamforming interference suppression", Proc. SPIE 12257, 4th International Conference on Information Science, Electrical, and Automation Engineering (ISEAE 2022), 122570U (1 August 2022); https://doi.org/10.1117/12.2640111

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