Results 61 to 70 of about 287 (119)

An RD-Domain Virtual Aperture Extension Method for Shipborne HFSWR

open access: yesRemote Sensing
High-frequency surface wave radar (HFSWR) is widely used for detecting sea surface or low-altitude targets due to its all-weather operation and over-the-horizon detection capability.
Youmin Qu   +3 more
doaj   +1 more source

Ionospheric Clutter Model for HF Sky-Wave Path Propagation with an FMCW Source

open access: yesInternational 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

open access: yesEURASIP 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

Improving the azimuthal resolution of High Frequency Surface Wave Radars with a multiplicative beamforming

open access: yes, 2012
International audienceThe use of multiplicative beamforming is described to improve the azimuthal resolution of existing high-frequency surface-wave radar (HFSWR).
Guinvarc'H, Régis   +3 more
core   +1 more source

Joint Analysis and Morphological Characterization of HFSWR Echo Properties during Severe Typhoon Muifa

open access: yesRemote Sensing
Investigating 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

Motion Parameter Identification and Motion Compensation for Shipborne HFSWR by Using the Reference RF Signal Generated at the Shore

open access: yesRemote 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

Study of high frequency surface wave radar (HFSWR)

open access: yes, 2008
This work presents the main features of a surveillance system based on High Frequency Surface Wave RADAR (HFSWR). Nowadays, the School of Electrical Engineering, together with the Chilean Navy, is beginning the study of HFSWR technology in order to ...
Segovia, Guillermo Fernández   +3 more
core  

High frequency surface wave radar signal modeling and processing

open access: yes, 2010
The use of radar has grown tremendously from its original use in the military, to its modern use in the air traffic control system. Different types of radar have been developed over the years to meet the needs of various applications and systems. High
Wang, William Hup Joo.
core  

Improving Ship Detection Based on Decision Tree Classification for High Frequency Surface Wave Radar

open access: yes, 2023
The traditional constant false alarm rate (CFAR) method, with fixed parameter settings and single noise background calculation, is unable to intelligently catch the current detection background.
Yao Qin   +5 more
core   +1 more source

A High-Frequency Surface Wave Radar Simulation Using FMCW Technique for Ship Detection

open access: yes, 2020
Indonesia is an archipelagic country with a vast sea area. This vast sea area becomes a challenge in conducting regional surveillance to maintain maritime conditions.
Iswandi, Iswandi   +3 more
core   +1 more source

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