Interference suppression for satellite communications in EHF band based on aperiodic multistage arrays

doi:10.23919/JSEE.2023.000088

Journal of Systems Engineering and Electronics ›› 2024, Vol. 35 ›› Issue (6): 1372-1379.doi: 10.23919/JSEE.2023.000088

• • 上一篇

收稿日期:2021-09-22 出版日期:2024-12-18 发布日期:2025-01-14

Interference suppression for satellite communications in EHF band based on aperiodic multistage arrays

Jiebin ZHANG(), Wenquan FENG(), Hao WANG(), Qing CHANG()

School of Electronics and Information Engineering, Beihang University, Beijing 100191, China

Received:2021-09-22 Online:2024-12-18 Published:2025-01-14
Contact: Hao WANG E-mail:zjb@buaa.edu.cn;buaafwq@buaa.edu.cn;whbuaa@qq.com;398854065@qq.com
About author:
ZHANG Jiebin was born in 1986. He received his B.S. and M.S. degrees from Beihang University in 2012. His research interests include analog and digital circuit design, adaptive array signal processing. E-mail: zjb@buaa.edu.cn

FENG Wenquan was born in 1970. He received his Ph.D. degree from Beihang University in 2010. He is a researcher with the School of Electronic and Information Engineering, Beihang University. His current research interests include satellite navigation, satellite communication, and complex system fault diagnosis. E-mail: buaafwq@buaa.edu.cn

WANG Hao was born in 1989. He received his B.S. and M.S. degrees from Henan Normal University in 2012, and Ph.D. degree form Beihang University in 2019. He is an associate professor with the School of Electronic and Information Engineering, Beihang University. His research interests include satellite navigation technology, adaptive array signal processing, and GNSS anti-jamming technology. E-mail: whbuaa@qq.com

CHANG Qing was born in 1962. He received his B.S. degree from Beijing Normal University in 1982, and M.S. and Ph.D. degrees from Beihang University in 1991 and 1995, respectively. Since 2000, he has been a professor with the School of Electronic and Information Engineering, Beihang University. His research interests include satellite communication and navigation, and wireless networks. E-mail: 398854065@qq.com
Supported by:
This work was supported by the National Key Research and Development Program of China (2022YFB3904402).

摘要/Abstract

Abstract:

The direction of ground-based interference reaching the satellite is generally very close to the spot beam of the satellite. The traditional array anti-jamming method may cause significant loss to the uplink signal while suppressing the interference. In this paper, an aperiodic multistage array is used, and a sub-array aperiodic distribution optimization scheme based on parallel differential evolution is proposed, which effectively improves the beam resolution and suppresses the grating lobe. On this basis, a two-stage signal processing method is used to suppress interference. Finally, the comprehensive performance of the proposed scheme is evaluated and verified.

Key words: grating lobe, anti-jamming, multi-stage array, differential evolution, spot beam

. [J]. Journal of Systems Engineering and Electronics, 2024, 35(6): 1372-1379.

Jiebin ZHANG, Wenquan FENG, Hao WANG, Qing CHANG. Interference suppression for satellite communications in EHF band based on aperiodic multistage arrays[J]. Journal of Systems Engineering and Electronics, 2024, 35(6): 1372-1379.

图/表 11

参考文献 19

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Category	Parameter	Value
Array parameter	Number of sub-array elements	$M = 4 \times 4$
	Element spacing	${d_1} = 1.8\lambda $
	Frequency/GHz	40
	Number of sub-arrays	$N = 7 \times 7$
	Channel uncertainty/(°)	$ \pm $2
DE parameter	Population size	$P = 200$
	Initial variation factor	0.5
	Crossover factor	0.2
	Sub-array offset range	$\Delta {\text{ = }}1.0\lambda $
	Evolution target/dB	${F_{{\text{th}}}}$= −12
Signal parameter	SNR/dB	20
Signal parameter	Bandwidth/MHz	2
Interference parameter	INR/dB	60
	Bandwidth/MHz	2
	Type	Gaussian

Interference suppression for satellite communications in EHF band based on aperiodic multistage arrays

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