Zobrazeno 1 - 10
of 82
pro vyhledávání: '"HF Surface Wave Radar"'
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 10, Pp 1599-1614 (2024)
Abstract Virtual aperture extension of small aperture array has attracted wide attention in high‐frequency surface wave radar (HFSWR). A biologically inspired coupled (BIC) system is employed to virtually extend the array aperture. However, the exi
Externí odkaz:
https://doaj.org/article/9bb57c19d5494eeebde0508580e8908f
Publikováno v:
IET Radar, Sonar & Navigation, Vol 17, Iss 12, Pp 1743-1759 (2023)
Abstract A great interest has been directed towards high frequency surface wave radar (HFSWR), because it is applied as long‐range early warning and real‐time measurements of sea surface condition tools in maritime surveillance. However, the unwa
Externí odkaz:
https://doaj.org/article/eec19de87a0a4c3596942dc5fae65960
Publikováno v:
IET Radar, Sonar & Navigation, Vol 17, Iss 5, Pp 859-875 (2023)
Abstract This article presents a deep neural network‐based constant false alarm rate (NNB‐CFAR) detector for simulated high‐frequency surface wave radar (HFSWR) data. A deep neural network is trained to identify fluctuation parameters of each c
Externí odkaz:
https://doaj.org/article/0254d41b3f104cbfa0f86977a5ca7b49
Publikováno v:
Remote Sensing, Vol 16, Iss 1, p 104 (2023)
A high-frequency surface wave radar (HFSWR) is the only sensor that provides inexpensive surveillance for up to 200 nautical miles (NM) of the exclusive economic zone in the 3–5 MHz band. However, because of its long wavelength, its angular resolut
Externí odkaz:
https://doaj.org/article/ca2f579fe0954c4ab8668e79c01ce018
Akademický článek
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Publikováno v:
Remote Sensing, Vol 15, Iss 18, p 4405 (2023)
The amplitude and phase errors in array elements lead to uncertainties in the estimation of arrival angles (DOA), which, in turn, affect the accuracy of current measurements for high-frequency surface wave radar (HFSWR). To address this issue, this p
Externí odkaz:
https://doaj.org/article/6ed045878ee14c759ff12677d8022b4e
Publikováno v:
IEEE Access, Vol 8, Pp 39907-39919 (2020)
In order to efficiently cover maritime areas at over the horizon (OTH) distances and thus increase marine safety in a nation's exclusive economic zone (EEZ), a network of maritime sensors built around High Frequency Surface Wave Radars (HFSWR) can be
Externí odkaz:
https://doaj.org/article/5d6b2522f65e4555bc0c3853fb8fe7d1
Akademický článek
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Publikováno v:
The Journal of Engineering (2019)
In this study, based on the shipborne high-frequency (HF) surface wave radar target detection application, the first-order ocean surface cross-section for the shipborne HF surface wave radar is simulated, and the relationship between the sea clutter
Externí odkaz:
https://doaj.org/article/235aa5d9de6c478aa29621aa360b4c12
Publikováno v:
The Journal of Engineering (2019)
Antennas operating in the high-frequency (HF) bands are generally relatively large in size, which severely limits the application of the antennas. Therefore, miniaturisation of the antenna is necessary. Here, a dual-folded structure Yagi antenna is d
Externí odkaz:
https://doaj.org/article/02b243e38b7a478e96049e31ea95b9dd