Results 51 to 60 of about 14,761 (217)
Wind Speed Inversion in High Frequency Radar Based on Neural Network
International Journal of Antennas and Propagation, 2016 Wind speed is an important sea surface dynamic parameter which influences a wide variety of oceanic applications. Wave height and wind direction can be extracted from high frequency radar echo spectra with a relatively high accuracy, while the estimation
Yuming Zeng +3 more
doaj +1 more source
Bistatic and Stereoscopic Configurations for HF Radar
Remote Sensing, 2020 Most HF radars operate in a monostatic or quasi-monostatic configuration. The collocation of transmit and receive facilities simplifies testing and maintenance, reduces demands on communications networks, and enables the use of established and relatively
Stuart Anderson
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Ionospheric effect of HF surface wave over‐the‐horizon radar [PDF]
Radio Science, 2006 The use of HF surface wave radar as an effective method for inspecting the environment of the ocean in the beyond‐the‐horizon area has been developing in recent years. However, because the radiating beam of the transmitting antenna is of a certain width and its electromagnetic radiating power propagates not only along the sea surface but also to the ...
Huotao Gao +4 more
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Propagation modeling and path loss prediction tools for high frequency surface wave radars [PDF]
, 2010 Propagation modeling and simulation approaches for the use of High Frequency Surface Wave Radar (HFSWR) are discussed. HFSWR uses vertically polarized surface waves along multi-mixed paths in the lower HF band (3 MHz - 15 MHz).
Apaydın, Gökhan, Sevgi, Levent
core +1 more source
Journal of Field Robotics, Volume 43, Issue 3, Page 2254-2341, May 2026.ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong +13 more
wiley +1 more source
The Journal of Engineering, 2019 Radars operating in the high-frequency (HF) band can exploit propagation modes other than line-of-sight and are hence widely employed to provide over-the-horizon surveillance and remote sensing.
Stuart Anderson
doaj +1 more source
Remote Sensing, 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 paper
Wei Fu +5 more
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Generalised noise cancellation method for wave estimation by HF surface wave radar
IET Radar, Sonar & Navigation, 2014 High frequency (HF) surface wave radar (HFSWR) has been demonstrated, in many experiments and papers, to be a powerful tool for sea‐state detection. However, the availability and accuracy of the HFSWR measurements are limited by various unwanted clutter and interferences (collectively called ‘noise’) that contaminate the radar received signals ...
Wang, Wei, Wyatt, Lucy
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On the possibility of radar echo detection of ultra-high energy cosmic ray- and neutrino-induced extensive air showers [PDF]
, 2000 We revisit and extend the analysis supporting a 60 year-old suggestion that cosmic rays air showers resulting from primary particles with energies above 10^{18} eV should be straightforward to detect with radar ranging techniques, where the radar echoes ...
Appleton +30 more
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Effect of Field Line Torsion on the Polarization of ULF Waves
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract In this paper we suggest a simple modification of the dipole magnetic field which introduces field‐aligned currents and torsion to the field lines. The resulting field lines are not contained in the meridional planes and have resemblance to the geomagnetic field lines in the dawn and dusk flanks of the magnetosphere. We analyze polarization of
K. Kabin, A. W. Degeling, R. Rankin
wiley +1 more source