Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Biyang Wen"'
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 13276-13291 (2024)
Compact high-frequency (HF) surface wave radar can be used for remote sensing of sea surface dynamic parameters, such as winds, waves, and currents, as well as hard targets, such as ships and low-altitude aircrafts. Due to its small antenna aperture,
Externí odkaz:
https://doaj.org/article/5962110c9cea436d8f773b019e9aefa1
Publikováno v:
Remote Sensing, Vol 16, Iss 12, p 2139 (2024)
High-frequency (HF) radar plays a crucial role in the detection of far-range, stealth, and high-speed targets. Nevertheless, the echo signal of such targets typically exhibits a low signal-to-noise ratio (SNR) and significant amplitude fluctuations b
Externí odkaz:
https://doaj.org/article/ea23dc4a6fcd49f7ac100e3167f7eb17
Publikováno v:
IEEE Access, Vol 8, Pp 98670-98678 (2020)
In this paper, the application of coherent ultra-high frequency (UHF) Doppler radar for ship target detection over river is investigated. Due to the wide beam and high resolution of UHF radar, ship target echoes are usually significantly extended in
Externí odkaz:
https://doaj.org/article/e57db9fe569947a0b1f41e80676d0d98
Publikováno v:
IEEE Access, Vol 8, Pp 46472-46479 (2020)
Practical and stable channel calibration method is one of the most interesting technology for array radar engineers. This paper proposes a single source active calibration method (SAM) for ultra high frequency (UHF) radar with uniform linear array (U
Externí odkaz:
https://doaj.org/article/d3d5666ea8b444bcaa052d508a3cccc6
Publikováno v:
IEEE Access, Vol 7, Pp 101527-101538 (2019)
Monitoring small drones is significant for security requirements, but it is challenging because of small drones' low radar cross section (RCS) and hovering ability. In order to analyze the effect of radar waveform on the echo spectra and optimize the
Externí odkaz:
https://doaj.org/article/b0bdb6169d634de2a0430de9a28d9ab8
Publikováno v:
Sensors, Vol 22, Iss 7, p 2780 (2022)
A filtering slot antenna with a simple structure combination using characteristic mode analysis (CMA) is proposed. To realize filtering characteristics, characteristic magnetic currents of line and ring slots are analyzed and designed. Then, the fold
Externí odkaz:
https://doaj.org/article/df391a7902d04ccb8208acbbc6187600
Publikováno v:
Remote Sensing, Vol 13, Iss 13, p 2441 (2021)
With the rapid development of deep learning, the neural network becomes an efficient approach for eddy detection. However, previous work employs a traditional neural network with a focus on improving the detecting accuracy only using limited data und
Externí odkaz:
https://doaj.org/article/f8d5dbaae526485aaa9b6eca5ec542d8
Publikováno v:
International Journal of Antennas and Propagation, Vol 2019 (2019)
The compact high-frequency surface wave radar using a crossed-loop/monopole (CLM) antenna as the receiving sensor has been widely used in ocean remote sensing and target monitoring. However, the direction of arrival (DOA) estimation accuracy of a sin
Externí odkaz:
https://doaj.org/article/b4800c24165f4a5b9071853f84368045
Publikováno v:
International Journal of Antennas and Propagation, Vol 2019 (2019)
This paper numerically analyzes the characteristics of the Doppler spectrum at HF/VHF/UHF bands from 1D time-varying ocean-like surfaces at grazing incidence in vertical polarization mode. The rough surface is transformed into a local perturbation pl
Externí odkaz:
https://doaj.org/article/f9556735b46e44b3bab9a87ce6ddeb73
Publikováno v:
Remote Sensing, Vol 13, Iss 8, p 1548 (2021)
Compact high-frequency surface wave radar (HFSWR) plays a critical role in ship surveillance. Due to the wide antenna beam-width and low spatial gain, traditional constant false alarm rate (CFAR) detectors often induce a low detection probability. To
Externí odkaz:
https://doaj.org/article/66a4b39820874eb796a839cc83a0ad10