Effects of high-latitude atmospheric gravity wave disturbances on artificial HF radar backscatter [PDF]
, 2006 International audienceObservations of HF radar backscatter from artificial field-aligned irregularities in an ionosphere perturbed by travelling disturbances due to atmospheric gravity waves are presented.
Tim K. Yeoman (7583066) +14 more
core +2 more sources
Spectral analysis in high frequency radar oceanography [PDF]
, 2006 High Frequency radar systems provide a unique opportunity to measure evolving littoral oceanic dynamics at high temporal and spatial resolution. Backscattered electromagnetic signals from ocean waves are modulated by Bragg resonant scattering.
Middleditch, Andrew
core +6 more sources
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
On the relationship between the velocity of E-region HF echoes and E B plasma drift [PDF]
, 2005 International audienceIn this study, velocities of E-region HF echoes observed by the Stokkseyri HF radar are compared with ExB plasma drifts in the F-region measured by the DMSP satellites.
D. W. Danskin +7 more
core +2 more sources
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
Noncontact assessment for fatigue based on heart rate variability using IR-UWB radar
Scientific Reports, 2022 Physical fatigue can be assessed using heart rate variability (HRV). We measured HRV at rest and in a fatigued state using impulse-radio ultra wideband (IR-UWB) radar in a noncontact fashion and compared the measurements with those obtained using ...
Sarfaraz Ahmed +5 more
doaj +1 more source
A comparison of satellite scintillation measurements with HF radar backscatter characteristics [PDF]
Annales Geophysicae, 2005 We examine the correspondence between high latitude ionospheric scintillation measurements made at 250MHz with the occurrence of 10MHz HF coherent radar backscatter, on 13 and 14 December 2002.
S. E. Milan +3 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
Mapping Wind Directions with HF Radar
Oceanography, 1997 BESIDES THE MEASUREMENT of ocean surface currents, high-frequency (HF) radar has also been demonstrated to be effective at measuring the wind direction at scales on the order of one to several kilometers and over areas of millions of square kilometers in the case of sky-wave HF radars (Georges et al.
Graber, Hans C. +3 more
openaire +2 more sources