TY - GEN
T1 - Research on Robust Airspace Anti-jamming Technology in Spaceborne OFDM System
AU - Wang, Wei
AU - Liu, Yongqing
AU - Huang, Yin
AU - Han, Hangcheng
AU - Wu, Zhijie
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In recent years, our country's low-orbit satellite communication system has developed rapidly. As a mature waveform transmission technology, OFDM technology is widely used in low-orbit satellite communication systems with the advantages of outstanding resistance to inter-symbol interference, free spectrum and resource allocation, etc. However, for the spaceborne OFDM system, the transmission performance of the system will be seriously affected, whether it is in a civil scenario with unintentional interference or in a complex military confrontation environment with intentional interference. Anti-jamming capability is an important factor to ensure the security and stability of the system. Aiming at the partial frequency band interference problem in the OFDM system, this paper studies an effective robust spatial adaptive notch tracking anti-jamming algorithm. For the LCMV algorithm cannot effectively resist the interference under low interference signal ratio and the expected signal direction is deviated. The situation of beamforming, a robust beamforming algorithm of MVDR based on diagonal loading is proposed, which is modeled based on the unique area array antenna array, and the detailed flow of the algorithm is given. Through the simulation and verification of the algorithm, the proposed algorithm can effectively suppress the interference of some frequency bands.
AB - In recent years, our country's low-orbit satellite communication system has developed rapidly. As a mature waveform transmission technology, OFDM technology is widely used in low-orbit satellite communication systems with the advantages of outstanding resistance to inter-symbol interference, free spectrum and resource allocation, etc. However, for the spaceborne OFDM system, the transmission performance of the system will be seriously affected, whether it is in a civil scenario with unintentional interference or in a complex military confrontation environment with intentional interference. Anti-jamming capability is an important factor to ensure the security and stability of the system. Aiming at the partial frequency band interference problem in the OFDM system, this paper studies an effective robust spatial adaptive notch tracking anti-jamming algorithm. For the LCMV algorithm cannot effectively resist the interference under low interference signal ratio and the expected signal direction is deviated. The situation of beamforming, a robust beamforming algorithm of MVDR based on diagonal loading is proposed, which is modeled based on the unique area array antenna array, and the detailed flow of the algorithm is given. Through the simulation and verification of the algorithm, the proposed algorithm can effectively suppress the interference of some frequency bands.
KW - DFT-s-OFDM system
KW - partial frequency band interference
KW - spatial interference suppression style
UR - https://www.scopus.com/pages/publications/85149530277
U2 - 10.1109/ICEITSA57468.2022.00032
DO - 10.1109/ICEITSA57468.2022.00032
M3 - Conference contribution
AN - SCOPUS:85149530277
T3 - Proceedings - 2022 2nd International Conference on Electronic Information Technology and Smart Agriculture, ICEITSA 2022
SP - 137
EP - 142
BT - Proceedings - 2022 2nd International Conference on Electronic Information Technology and Smart Agriculture, ICEITSA 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd International Conference on Electronic Information Technology and Smart Agriculture, ICEITSA 2022
Y2 - 9 December 2022 through 11 December 2022
ER -