Results 11 to 20 of about 32,736 (313)
Nonlinear forecasts of ƒoF2: variation of model predictive accuracy over time [PDF]
Annales Geophysicae, 2002 Space weather effects can strongly influence high-frequency (HF) communications by changing the ionospheric environment through which the radio waves propagate. Since many systems utilize HF communications, the ability to make real-time assessments
A. H. Y. Chan +3 more
doaj +1 more source
Frontiers in Physics, 2022 The influence of thermal blooming on the propagation properties of higher-order mode (HOM) fiber laser array is studied by using the algorithm for simulating the laser beam propagation in the atmosphere.
Yuqiu Zhang +5 more
doaj +1 more source
Wind–Temperature Regime and Wind Turbulence in a Stable Boundary Layer of the Atmosphere: Case Study
Remote Sensing, 2020 The paper presents the results of probing the stable atmospheric boundary layer in the coastal zone of Lake Baikal with a coherent Doppler wind lidar and a microwave temperature profiler.
Viktor A. Banakh +2 more
doaj +1 more source
Remote Sensing, 2020 A method for estimation of the turbulent energy dissipation rate from measurements by a conically scanning pulsed coherent Doppler lidar (PCDL), with allowance for the wind transport of turbulent velocity fluctuations, has been developed.
Igor N. Smalikho, Viktor A. Banakh
doaj +1 more source
Propagation Properties of an Astigmatic Cos-Gaussian Beam through Turbulent Atmosphere [PDF]
E3S Web of Conferences, 2021 We use the extended Huygens-Fresnel integral to investigate the propagation properties of a cos-Gaussian beam (cosGB) with astigmatism in atmospheric turbulence.
Zhu Kaicheng +4 more
doaj +1 more source
A Survey of Structure of Atmospheric Turbulence in Atmosphere and Related Turbulent Effects
Atmosphere, 2021 The Earth’s atmosphere is the living environment in which we live and cannot escape. Atmospheric turbulence is a typical random inhomogeneous medium, which causes random fluctuations of both the amplitude and phase of optical wave propagating through it.
Fazhi Wang +4 more
doaj +1 more source
Sensors, 2022 6G is already being planned and will employ much higher frequencies, leading to a revolutionary era in communication between people as well as things. It is well known that weather, especially rain, can cause increased attenuation of signal transmission ...
Judy Kupferman, Shlomi Arnon
doaj +1 more source
IEEE Photonics Journal, 2022 We correct a few typographical errors in the original manuscript.
Yuqiu Zhang +6 more
doaj +1 more source
A revised approach to the ƒoF2 long-term trends analysis [PDF]
Annales Geophysicae, 2002 A new approach to extract foF2 long-term trends, which are free to a great extent from solar and geomagnetic activity effects, has been proposed. These trends are insensitive to the phase (increasing/decreasing) of geomagnetic activity, with long ...
A. V. Mikhailov +4 more
doaj +1 more source
Anisotropic Non-Kolmogorov Turbulence Spectrum with Anisotropic Tilt Angle
Photonics, 2021 With the in-depth study of atmospheric turbulence, scholars have identified that the anisotropy of turbulence cells should not be forgotten. The anisotropic non-Kolmogorov turbulence model can better characterize the actual situation of atmospheric ...
Chao Zhai
doaj +1 more source