电磁频谱伞罩自干扰抑制实验验证

doi:10.12305/j.issn.1001-506X.2021.09.33

Abstract

Abstract:

To eliminate the electromagnetic interference in electronic warfare field, a structure of self-interference suppression for a point-to-point communication scenario is studied, and an experimental testbed is designed to verify the proposed self-interference suppression architecture in electromagnetic spectrum umbrella systems. Firstly, the received signal at the authorized receiver is compensated with the estimated frequency offset. And then, the local umbrella reference self-interference is compensated with the estimated time delay and channel estimation. Finally, the reconstruction and cancellation of the umbrella self-interference signal is performed. Experimental results show that the proposed umbrella self-interference suppression architecture can effectively suppress the umbrella self-interference signals at the authorized receiver, which is expected to be used for tactical spectrum management to guarantee the electromagnetic dominance of the authorized users.

Key words: electronic warfare, electromagnetic spectrum umbrella, self-interference suppression, time-frequency synchronization, channel estimation

CLC Number:

TN92

Wenbo GUO, Changqing SONG, Yidan ZHANG, Hongzhi ZHAO, Shihai SHAO, Youxi TANG. Experimental testbed of self-interference suppression in electromagnetic spectrum umbrella[J]. Systems Engineering and Electronics, 2021, 43(9): 2637-2641.

Figures/Tables 7

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References 16

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Experimental testbed of self-interference suppression in electromagnetic spectrum umbrella

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