Results 61 to 70 of about 22,219,028 (112)
Remote SensingInvestigating the dynamic evolution process of the ocean and ionosphere in sudden sea conditions poses a challenging problem. To address this objective, this study utilizes actual data from high-frequency surface wave radar (HFSWR) to analyze, validate ...
Rong Wang +4 more
doaj +1 more source
Ionospheric Clutter Model for HF Sky-Wave Path Propagation with an FMCW Source
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
doaj +1 more source
Spatial polarimetric time-frequency distribution based DOA estimation: combining ESPRIT with MUSIC
EURASIP Journal on Wireless Communications and Networking, 2018 Spatial spectrum estimation technology has always been the focused research project in an array signal processing of High Frequency Surface Wave Radar (HFSWR).
Aijun Liu +4 more
doaj +1 more source
Remote Sensing, 2020 The shipborne high-frequency surface wave radar (HFSWR) platform produces six degrees of freedom (DOF) motion at sea, which affects the performance of radar target detection and remote sensing of ocean surface dynamics parameters. Motion compensation can
Di Zhu +5 more
doaj +1 more source
Adaptive Processing in High Frequency Surface Wave Radar [PDF]
, 2009 High-Frequency Surface Wave Radar (HFSWR) is a radar technology that offers numerous advantages for surveillance of coastal waters beyond the exclusive economic zone. However, target detection and tracking is primarily limited by ionospheric interference.
Saleh, Oliver S.
core
Radar cross-section (RCS) analysis of high frequency surface wave radar targets [PDF]
, 2010 Realistic high frequency surface wave radar (HFSWR) targets are investigated numerically in terms of electromagnetic wave - target interactions. Radar cross sections (RCS) of these targets are simulated via both the finite-difference time-domain (FDTD ...
Sevgi, Levent +4 more
core +1 more source
, 2008 International audienceHigh-frequency waves (3-30 MHz) interact with the sea surface. Thus, a high-frequency surface wave radar (HFSWR) is well suited to perform remote sensing of the sea.
Hélier, Marc +2 more
core +1 more source
Improved Main Lobe Cancellation Method for Suppression Directional Noise in HFSWR Systems
Remote SensingHigh frequency surface wave radar (HFSWR) has been successfully developed for early warning, especially for vessel target detection. However, the system’s performance is consistently constrained by external environmental noise, particularly directional ...
Dezhu Xiao +3 more
doaj +1 more source
A Modified STAP Estimator for Superresolution of Multiple Signals
International Journal of Antennas and Propagation, 2013 A modified space-time adaptive processing (STAP) estimator is described in this paper. The estimator combines the incremental multiparameter (IMP) algorithm and the existing beam-space preprocessing techniques yielding a computationally cheap algorithm ...
Zhongbao Wang +3 more
doaj +1 more source
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
doaj +1 more source