TY - GEN
T1 - Anti-jamming Method of Satellite Navigation Based on Synthetic Aperture
AU - Han, Chuang
AU - Li, Shuozhen
AU - Gong, Yanyun
AU - Zhang, Zhaolin
AU - Wang, Yuexian
AU - Wang, Ling
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - A new method to extend the satellite navigation anti-jamming degree of freedom based on synthetic aperture is proposed. In this paper, by means of using the motion characteristics of single antenna, the time-domain sampling of signal is converted into spatial sampling and virtual array is synthesized. When the number of virtual elements in the array is limited, the number of interferences which can be suppressed can be greatly increased, which can solve the problem that the freedom of anti-interference is limited by the number of elements. Combined with the optimal anti-jamming weighting criterion, the space-frequency anti-jamming algorithm is used for anti-jamming processing, and the covariance matrix broadening algorithm is used to optimize the anti-jamming processing results, which solves the problem of how to deal with robust anti-jamming under the condition of unfixed anti-jamming degree of freedom. The simulation results verify the effectiveness of the method.
AB - A new method to extend the satellite navigation anti-jamming degree of freedom based on synthetic aperture is proposed. In this paper, by means of using the motion characteristics of single antenna, the time-domain sampling of signal is converted into spatial sampling and virtual array is synthesized. When the number of virtual elements in the array is limited, the number of interferences which can be suppressed can be greatly increased, which can solve the problem that the freedom of anti-interference is limited by the number of elements. Combined with the optimal anti-jamming weighting criterion, the space-frequency anti-jamming algorithm is used for anti-jamming processing, and the covariance matrix broadening algorithm is used to optimize the anti-jamming processing results, which solves the problem of how to deal with robust anti-jamming under the condition of unfixed anti-jamming degree of freedom. The simulation results verify the effectiveness of the method.
KW - null broadening
KW - space frequency adaptive processing
KW - spatial anti-jamming system
KW - synthetic aperture
UR - https://www.scopus.com/pages/publications/85141220005
U2 - 10.1109/ICEICT55736.2022.9909188
DO - 10.1109/ICEICT55736.2022.9909188
M3 - 会议稿件
AN - SCOPUS:85141220005
T3 - 2022 IEEE 5th International Conference on Electronic Information and Communication Technology, ICEICT 2022
SP - 657
EP - 660
BT - 2022 IEEE 5th International Conference on Electronic Information and Communication Technology, ICEICT 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th IEEE International Conference on Electronic Information and Communication Technology, ICEICT 2022
Y2 - 21 August 2022 through 23 August 2022
ER -