Propagation model for transionospheric fluctuating paths of propagation: Simulator of the transionospheric channel

VE Gherm, NN Zernov, HJ Strangeways - Radio Science, 2005 - ieeexplore.ieee.org
A new model for scintillation on transionospheric links, based on a hybrid method and valid
for strong scintillations, has been developed and used to construct a software …

The two-frequency coherence function for the fluctuating ionosphere: Narrowband pulse propagation

VE Gherm, NN Zernov, B Lundborg… - Journal of Atmospheric and …, 1997 - Elsevier
This article presents a detailed numerical investigation of the two-frequency coherence
function for HF wave propagation in the fluctuating ionosphere. Earlier published …

Strong scintillation of GNSS signals in the inhomogeneous ionosphere: 1. Theoretical background

NN Zernov, VE Gherm - Radio Science, 2015 - ieeexplore.ieee.org
The analytical theory of the Global Navigation Satellite Systems (GNSS) signal propagation
through the inhomogeneous ionosphere with time-varying embedded localized random …

The generalization of Rytov's method to the case of inhomogeneous media and HF propagation and scattering in the ionosphere

NN Zernov, VE Gherm, NY Zaalov, AV Nikitin - Radio science, 1992 - ieeexplore.ieee.org
Rytov's method is generalized for the case when the regularly inhomogeneous ionosphere
contains local irregularities of deterministical and statistical nature. An integral …

HF propagation in a wideband ionospheric fluctuating reflection channel: Physically based software simulator of the channel

VE Gherm, NN Zernov, HJ Strangeways - Radio Science, 2005 - ieeexplore.ieee.org
A wideband HF simulator has been constructed on the basis of a detailed physical model of
propagation which can generate a time realization of the HF wideband channel for any HF …

Scattering function of the fluctuating ionosphere in the HF band

VE Gherm, NN Zernov - Radio Science, 1998 - Wiley Online Library
This paper is devoted to the investigation of the two‐frequency, two‐position, time
coherence function and the ionospheric scattering function describing the HF ionospheric …

Wideband scattering functions for HF ionospheric propagation channels

VE Gherm, NN Zernov, B Lundborg, M Darnell… - Journal of Atmospheric …, 2001 - Elsevier
A physically based method has been developed to simulate the wideband HF ionospheric
propagation channel relevant to the case of wideband spread spectrum HF communications …

Extension of Hybrid Scintillation Propagation Model to the case of field propagation in the ionosphere with highly anisotropic irregularities

VE Gherm, NN Zernov - Radio Science, 2017 - ieeexplore.ieee.org
The detailed effects of the high-frequency radio wave propagation in a stochastic
transionospheric propagation channel are discussed. This is a special case of propagation …

Comparison of four methods for transionospheric scintillation evaluation

HJ Strangeways, NN Zernov, VE Gherm - Radio Science, 2014 - ieeexplore.ieee.org
There are a variety of methods employed for determination of phase and amplitude
scintillation on satellite signals which generally employ different models and theory. The …

The influence of ionospheric electron density fluctuations on HF pulse propagation

NN Zernov, B Lundborg - Journal of Atmospheric and Terrestrial Physics, 1995 - Elsevier
The influence of electron density fluctuations on the dispersive properties of the ionosphere
is investigated in the forward scattering approximation by means of a generalized Rytov's …