Aug 2026· International Symposium on Wireless Communication Systems· pp. 1-5· 0 citations· 28 references
Abstract
In UAV communication, the high mobility of UAVs causes frequent mainlobe switching, which may turn sidelobe interference into mainlobe interference under which conventional adaptive beamforming (ABF) suffers severe performance degradation. To address this issue, this paper investigates an interference-plus-noise covariance matrix (INCM) reconstruction ABF using a polarization-sensitive array (PSA) under mainlobe interference conditions. Specifically, the objective is to suppress interference from both the mainlobe and sidelobes as accurately as possible while exerting virtually no effect on the desired signal. First, we employ the MUSIC algorithm to estimate the direction of arrival (DOA), polarization phase angle, and polarization phase difference with the PSA. Subsequently, the DOA and polarization parameters of the interference are identified to reconstruct the INCM for beamforming. Simulation results demonstrate that the proposed algorithm outperforms the INCM-based beamforming using a conventional uniform linear array.
Low Earth orbit (LEO) satellite communication systems suffer severe disruptions from broadband noise jamming. To tackle this challenge, this article proposes a lightweight multisatellite cooperative antijamming framework customized for the stringent hardware and computational limits of LEO platforms. The framework adop...
Rui Zhang, Shu-Qi Qiao, Rong-Fei Liu et al.· IEEE Transactions on Aerospa...· 0 citations
This letter investigates a reconfigurable intelligent surface (RIS)-assisted integrated radar and multi-user communication system with frequency-limited beamforming optimization, where the radar mean square error (MSE) between the actual and desired beampatterns and the multi-user interference (MUI) are simultaneously...
Jun-Hui Qian, Xiao-Bing Song, Yu-Hang He et al.· IEEE Wireless Communications...· 0 citations
Fixed-position antenna (FPA) arrays provide limited spatial degrees of freedom for integrated radar and jamming (IRAJ), especially in multi-target scenarios. In this letter, we study a movable-antenna (MA)-enabled multi-target IRAJ system, where the transmit waveform and antenna positions are jointly optimized for dece...
Yang-Kuang-Guang-Hui Hu, Peng-Cheng Gong, Yan Xiao et al.· IEEE Signal Processing Lette...· 0 citations
Direction-of-Arrival (DoA) estimation is a significant component of smart antenna systems, enabling efficient beamforming, interference mitigation, and advanced spatial signal processing in modern wireless communications. Conventional high-resolution techniques, such as Multiple Signal Classification (MUSIC), require m...
M. Alagirisamy, V. Dakulagi, S. Selvaperumal et al.· Engineering, Technology &...· 0 citations
High-power mainlobe jamming severely degrades the target-detection capabilities of array radars in complex electromagnetic environments. Although the difference-channel signal can be reused as an auxiliary reference to suppress the jamming component in the sum channel, the jamming component remains unmitigated in the m...
Target localization in automotive MIMO radar systems faces significant challenges in dense urban environments due to mutual interference between vehicles. While 2D-FFT based estimators are widely used, their performance degrades sharply in the presence of high-power chirp interference. This paper proposes a comprehensi...
Alireza Zaherfekr, Mohammad Javad Ghoreishian, A. Ebrahimzadeh· IEEE Access· 0 citations
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