Results 11 to 20 of about 2,062 (173)
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 +2 more sources
HF Radar Wind Direction: Multiannual Analysis Using Model and HF Network
Remote Sensing, 2023 HF radar systems have the potential to measure the wind direction, in addition to surface currents and wave fields. However, studies on HF radar for wind direction determination are rare in the scientific literature.
Simona Saviano +7 more
doaj +4 more sources
Societal Applications of HF Skywave Radar
Remote Sensing, 2022 After exploratory research in the 1950s, HF skywave ‘over-the-horizon’ radars (OTHR) were developed as operating systems in the 1960s for defence missions, notably the long-range detection of ballistic missiles, aircraft, and ships.
Stuart Anderson
doaj +2 more sources
Assessing Dietary Patterns and Composition Among Adults With Cystic Fibrosis Taking Highly Effective Modulator Therapy. [PDF]
Pediatr PulmonolABSTRACT Background The metabolic impact of poor diet quality in cystic fibrosis (CF), coupled with a rise in obesity and modulator‐induced weight gain, is a growing concern. Our study aimed to understand knowledge and perspectives regarding dietary changes on modulators, and how measured nutrient intake changes with different dietary patterns in ...
Bailey J +5 more
europepmc +2 more sources
, 2023 This report provides a description of the different tools developed for tackling key issues of the High Frequency Radar (HFR) community: advanced delayed time QC of HFR historical data, implementation of Best Practices, enhancing the application of HFR observations in NRT modelling assessment and Ocean State ...
Solabarrieta, Lohitzune +7 more
openaire +2 more sources
HF radar backscatter inversion technique [PDF]
Radio Science, 2006 Methods of inverting high‐frequency radar land and sea backscatter to obtain ionospheric vertical profiles offer an important means of remote sensing the ionosphere up to thousands of kilometers from the transmitter/receiver location. This new inversion technique requires the received elevation angle as well as the time delay or group path of the ...
Norman, Robert., Dyson, Peter.
openaire +1 more source
Target characteristics analysis for a shipborne HF surface wave radar
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 ...
Geriletu Lu +3 more
doaj +1 more source
IET Radar, Sonar & Navigation, 2023 Ionospheric phase contamination (IPC) is a major contributor to the imprecise retrieval of ocean dynamics parameters by the high‐frequency hybrid sky‐surface wave radar (HFHSSW).
Mengyan Feng +5 more
doaj +1 more source
Wuhan Ionospheric Oblique Backscattering Sounding System and Its Applications—A Review
Sensors, 2017 For decades, high-frequency (HF) radar has played an important role in sensing the Earth’s environment. Advances in radar technology are providing opportunities to significantly improve the performance of HF radar, and to introduce more applications ...
Shuzhu Shi +4 more
doaj +1 more source
History of the Super Dual Auroral Radar Network (SuperDARN)-I: pre-SuperDARN developments in high frequency radar technology for ionospheric research and selected scientific results [PDF]
History of Geo- and Space Sciences, 2021 Part I of this history describes the motivations for developing radars in the high frequency (HF) band to study plasma density irregularities in the F region of the auroral zone and polar cap ionospheres.
R. A. Greenwald
doaj +1 more source