Small Signal Anti-Jamming Scheme Based on a DMA Linear Array under Strong Jamming
Considering the difficulty of receiving small signals under strong electromagnetic jamming, this paper proposes a small-signal anti-jamming scheme based on a single dynamic metamaterial antenna (DMA). Our scheme uses the dynamic-adjustable characteristics of the DMA to perform spatial filtering at t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/6/1389 |
| _version_ | 1797612217875562496 |
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| author | Yuankai Wang Liang Jin Yangming Lou Yinuo Hao |
| author_facet | Yuankai Wang Liang Jin Yangming Lou Yinuo Hao |
| author_sort | Yuankai Wang |
| collection | DOAJ |
| description | Considering the difficulty of receiving small signals under strong electromagnetic jamming, this paper proposes a small-signal anti-jamming scheme based on a single dynamic metamaterial antenna (DMA). Our scheme uses the dynamic-adjustable characteristics of the DMA to perform spatial filtering at the antenna radio frequency (RF) front-end, to suppress strong jamming signals in advance and to improve the receiver’s ability to receive and demodulate small signals. Specifically, we take the maximization of signal-to-interference-plus-noise ratio (SINR) as the optimization goal, transform the fractional non-convex objective function model into a quasi-convex semi-definite relaxation (SDR) problem, and use the Charnes-Cooper (CC) transform algorithm to find the optimal DMA array-element codeword-state matrix. Simulation results show that DMA has better spatial-beamforming capability than traditional antenna arrays, and the proposed scheme can better resist strong jamming. DMA realizes the effect of digital beamforming at the back end of the traditional communication system, has the advantages of traditional digital-spatial filtering, and further improves the receiver’s ability to receive and demodulate small signals. |
| first_indexed | 2024-03-11T06:39:13Z |
| format | Article |
| id | doaj.art-c78ffb1db3684db2983638b8acdb05ef |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T06:39:13Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-c78ffb1db3684db2983638b8acdb05ef2023-11-17T10:44:51ZengMDPI AGElectronics2079-92922023-03-01126138910.3390/electronics12061389Small Signal Anti-Jamming Scheme Based on a DMA Linear Array under Strong JammingYuankai Wang0Liang Jin1Yangming Lou2Yinuo Hao3Wireless Communication Technology Office, Information Engineering University, Zhengzhou 450002, ChinaWireless Communication Technology Office, Information Engineering University, Zhengzhou 450002, ChinaWireless Communication Technology Office, Information Engineering University, Zhengzhou 450002, ChinaWireless Communication Technology Office, Information Engineering University, Zhengzhou 450002, ChinaConsidering the difficulty of receiving small signals under strong electromagnetic jamming, this paper proposes a small-signal anti-jamming scheme based on a single dynamic metamaterial antenna (DMA). Our scheme uses the dynamic-adjustable characteristics of the DMA to perform spatial filtering at the antenna radio frequency (RF) front-end, to suppress strong jamming signals in advance and to improve the receiver’s ability to receive and demodulate small signals. Specifically, we take the maximization of signal-to-interference-plus-noise ratio (SINR) as the optimization goal, transform the fractional non-convex objective function model into a quasi-convex semi-definite relaxation (SDR) problem, and use the Charnes-Cooper (CC) transform algorithm to find the optimal DMA array-element codeword-state matrix. Simulation results show that DMA has better spatial-beamforming capability than traditional antenna arrays, and the proposed scheme can better resist strong jamming. DMA realizes the effect of digital beamforming at the back end of the traditional communication system, has the advantages of traditional digital-spatial filtering, and further improves the receiver’s ability to receive and demodulate small signals.https://www.mdpi.com/2079-9292/12/6/1389dynamic metamaterial antennasmall signal anti-jammingmatched filteringsignal-to-interference-plus-noise ratio maximization |
| spellingShingle | Yuankai Wang Liang Jin Yangming Lou Yinuo Hao Small Signal Anti-Jamming Scheme Based on a DMA Linear Array under Strong Jamming Electronics dynamic metamaterial antenna small signal anti-jamming matched filtering signal-to-interference-plus-noise ratio maximization |
| title | Small Signal Anti-Jamming Scheme Based on a DMA Linear Array under Strong Jamming |
| title_full | Small Signal Anti-Jamming Scheme Based on a DMA Linear Array under Strong Jamming |
| title_fullStr | Small Signal Anti-Jamming Scheme Based on a DMA Linear Array under Strong Jamming |
| title_full_unstemmed | Small Signal Anti-Jamming Scheme Based on a DMA Linear Array under Strong Jamming |
| title_short | Small Signal Anti-Jamming Scheme Based on a DMA Linear Array under Strong Jamming |
| title_sort | small signal anti jamming scheme based on a dma linear array under strong jamming |
| topic | dynamic metamaterial antenna small signal anti-jamming matched filtering signal-to-interference-plus-noise ratio maximization |
| url | https://www.mdpi.com/2079-9292/12/6/1389 |
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