A Two-Step Method for Ionospheric Clutter Mitigation for HFSWR With Two-Dimensional Dual-Polarized Received Array [PDF]
IEEE Access, 2020 For high-frequency surface wave radar (HFSWR), the unwanted radio wave originated from the ionosphere is commonly called ionospheric clutter. Its presence seriously affects the performance of the HFSWR and extremely degrades the radar capability to ...
Yunlong Yang +3 more
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An Ionospheric Es Layer Clutter Model and Suppression in HF Surfacewave Radar [PDF]
International Journal of Antennas and Propagation, 2013 This paper based on a fast implemented multiphase screen method using DFT puts forward an ionospheric Es layer clutter model and uses the newly developed dimensionality reduction space-time adaptive processing- (STAP-) JDL algorithm to suppress Es layer ...
Yajun Li +4 more
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Weak Target Detection within the Nonhomogeneous Ionospheric Clutter Background of HFSWR Based on STAP [PDF]
International Journal of Antennas and Propagation, 2013 High Frequency Surface Wave Radar (HFSWR) can perform the functions of ocean environment monitoring, target detection, and target tracking over the horizon. However, its system's performance is always limited by the severe ionospheric clutter environment,
Xin Zhang, Qiang Yang, Weibo Deng
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Deep Learning Aided Time–Frequency Analysis Filter Framework for Suppressing Ionosphere Clutter [PDF]
Remote Sensing, 2022 In a heterogeneous environment, the ionosphere is dynamically changing in the Earth’s middle latitude, and backscatter from fast-moving irregularities in the plasma can cause ionosphere clutter to extend. Suppressing varying ionosphere clutter and exploring obscured targets are challenging tasks for high frequency surface wave radar (HFSWR).
Xiaowei Ji +5 more
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Ionospheric Clutter Model for HF Sky-Wave Path Propagation with an FMCW Source [PDF]
International Journal of Antennas and Propagation, 2019 A theoretical model of the sky-wave path propagation with frequency modulated continuous wave (FMCW) source for high frequency (HF) radar is proposed in this paper.
Xuguang Yang +3 more
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New BSS‐based ABF for heterogeneous ionospheric clutter mitigation in HFSWR [PDF]
IET Radar, Sonar & Navigation, 2019 Ionospheric clutter is detrimental to target detection in high‐frequency surface‐wave radar (HFSWR). Adaptive beamforming (ABF) has been adopted to suppress the ionospheric clutter in recent years. Unfortunately, the performance of ABF degrades due to the heterogeneity of the ionospheric clutter.
Yueyu Guo +3 more
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Research on Polarization Cancellation of Nonstationary Ionosphere Clutter in HF Radar System [PDF]
International Journal of Antennas and Propagation, 2015 Oblique projection polarization filter (OPPF) can be applied as an effective approach for interference cancellation in high-frequency surface wave radar (HFSWR) and other systems. In order to suppress the nonstationary ionosphere clutter further, a novel OPPF based clutter suppressing scheme is proposed in this paper. The polarization and nonstationary
Xingpeng Mao +3 more
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Space-polarization Collaborative Suppression Method for Ionospheric Clutter in HFSWR
Leida xuebao, 2016 High Frequency Surface Wave Radar (HFSWR) is able to receive surface target and low-flying aircraft echoes at a long-distance, but it suffers severely from ionospheric clutter.
Yang Yunlong +3 more
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High‐frequency radar ground clutter spatial correlation analysis: Transverse ionospheric drift velocity [PDF]
Radio Science, 2017 AbstractA method of evaluating transverse ionospheric winds from oblique high‐frequency radar ground scatter is presented. Measurements of the two‐point, two‐time mutual coherence function (MCF) of ground clutter targets made by the Kodiak Super Dual Auroral Radar Network (SuperDARN) HF‐phased array radar illustrate that the spatial distribution of the
Timothy E. Theurer, William A. Bristow
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Application of polarization ellipse technique for analysis of ULF magnetic fields from two distant stations in Koyna-Warna seismoactive region, West India [PDF]
Natural Hazards and Earth System Sciences, 2010 A new approach is developed to find the source azimuth of the ultra low frequency (ULF) electromagnetic (EM) signals believed to be emanating from well defined seismic zone.
F. Dudkin +5 more
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