Flexible robust adaptive beamforming method with null widening

Z Liu, S Zhao, C Zhang, G Zhang - IEEE Sensors Journal, 2021 - ieeexplore.ieee.org
The nonstationarity of interferences and array errors may bring fatal degradation to the
interference cancellation performance of an adaptive beamformer. Covariance matrix …

Joint target and ionosphere parameter estimation in over-the-horizon radar

A Ahmed, YD Zhang, B Himed - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Target localization, especially the estimation of target altitude, is a challenging task in over-
the-horizon radar (OTHR) because of the narrow signal bandwidth as well as the complexity …

Robust adaptive beamforming for sidelobe canceller with null widening

Z Liu, S Zhao, G Zhang, B Jiao - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
Nonstationary interference, generated by time-varying propagation paths or relative motions
between the receiving array and jamming sources, is a serious problem faced with radar …

Robust wideband adaptive beamforming with adjustable nulls in high dynamic scene

F Hao, W Wang, R Li - IEEE Communications Letters, 2023 - ieeexplore.ieee.org
When the interference rapidly moves and exhibits non-stationary characteristics, the
traditional space-time adaptive processing (STAP) algorithm cannot efficaciously solve the …

Adaptive radar detection in the clutter and noise cover pulse jamming environment

X Jing, H Su, L Shen, Z Mao, C Jia - Signal Processing, 2023 - Elsevier
This paper deals with the adaptive detection of the point-like target under clutter and noise
cover pulse (NCP) jamming. In the design stage, we assume that the jamming is orthogonal …

Radio frequency interference mitigation for high-frequency surface wave radar

Z Chen, F Xie, C Zhao, C He - IEEE Geoscience and Remote …, 2018 - ieeexplore.ieee.org
Radio frequency interference (RFI) is a common source of interference for high-frequency
surface wave radar (HFSWR) since the HF band is shared among many radio services. The …

功率倒置准则下干扰对消空间分辨率分析及优化

张嘉毫, 李亚星, 郭宇, 吴灏, 何方敏… - 中国电机工程 …, 2022 - epjournal.csee.org.cn
干扰对消是系统级电磁兼容领域关键技术. 空域干扰对消利用干扰信号与有用信号达波方向上的
差异消除干扰信号, 当差异较小时, 干扰对消空间分辨能力成为决定算法性能的核心因素 …

Fractional Fourier transform-based radio frequency interference suppression for high-frequency surface wave radar

Q Zhou, H Zheng, X Wu, X Yue, Z Chen, Q Wang - Remote sensing, 2019 - mdpi.com
High-frequency surface wave radar (HF SWR) plays an important role in marine
stereoscopic monitoring system. Nevertheless, the congestion of external radio frequency …

Radio frequency interference mitigation in high-frequency surface wave radar based on CEMD

Z Chen, F Xie, C Zhao, C He - IEEE Geoscience and Remote …, 2017 - ieeexplore.ieee.org
Radio frequency interference (RFI) is a common interference source in high-frequency
surface wave (HFSW) radar. Its existence degrades the performance of HFSW radar greatly …

Radio frequency interference cancelation for skywave over-the-horizon radar

Z Liu, H Su, Q Hu - IEEE Geoscience and Remote Sensing …, 2016 - ieeexplore.ieee.org
In the user-congested high-frequency band, skywave over-the-horizon radar (OTHR) is
easily interfered by radio frequency interference (RFI). Among the existing methods …