Complex of equipment for reception of ionospheric signals
The complex of equipment developed for reception and processing of ionospheric signals is presented. The structure of pulse ionospheric signals received on a line Moscow — Kaliningrad is shown. Results of modeling researches of a method of processing of ionospheric signals are resulted.
Перов А. И.
Research of process in bistable system when passing the mix of the harmonious signal and «white» noise
... A., Shabalin A. A. About Electromagnetic Compability of Radio Communication Stations Antennae // AIS-2010 «Atmosphere, ionosphere, safety». Kaliningrad, 2010. P. 184—186.
5. Rice S. O. Selected Papers on Noise and Stochastic Processes ... ... Радиотехнические цепи и сигналы. М., 2009.
Persichkin A. A., Shpilevoy A. A.
narrow-band noise, the attitude a «signal — noise», a dispersion of noise, a filtration.
The dynamics of ground-level aerosol lidar observation in Kaliningrad
... Electron Content in the ionosphere (TEC). Monitoring of atmospheric aerosol performed with using of the two-wavelength (532, 1064 nm) atmospheric lidar (LSA-2S). Ionospheric TEC parameter determined from the observation of the navigation satellites signals GLONASS (Leica1200). The observations in the lower atmosphere and ionosphere were executed simultaneously in the period February — March 2012. Analysis of the observations showed that during the period of solar terminator passing in the lower and upper atmosphere, there are variations of parameters with periods close ...
The solution of a problem of detection of a signal at vertical sounding of an ionosphere
In the real work the solution of a problem of determination of parameters of the radio impulse reflected from an ionosphere is considered. The noise component, and also the multibeam structure of a signal arising at formation two magnetoionic component is thus considered. Expression for definition of probability of reception of a radio impulse in these conditions is received.
1. Перов А. И. Статистическая теория радиотехнических ...
Investigation of distortions of the chirp signals in the neighborhood of critical frequencies of ionospheric plasma
Numerical experiments are performed to investigate the dispersion distortions of chirp pulses propagating in the ionosphere with taking the three-dimensional non-uniformity, anisotropy, and dispersion of ionosphere in dependence on geophysical conditions into account. Propagation, absorption,and the time delay of ordinary and nonordinary waves are analased.
Ionospheric station of vertical sounding of an ionosphere «Vector»
The structure of station of vertical sounding "Vector" and results of correlation data processing is presented. For vertical sounding of an ionosphere the difficult signal in the form of the М sequence, containing 16 positions is used. Ways of further modernization of station are shown. Them treat expansion of opportunities of determination of parameters of signals at twofold reflection from an ionosphere.
1. Авдюшин ...
Use of difficult signals at vertical sounding of an ionosphere
In the real work questions of sounding of an ionosphere are considered by difficult signals. Efficiency of use of signals with big base on an alignment with signals with base about 1 is estimated. It is shown that when using difficult signals it is possible to lower significantly capacity at preservation of invariable level of permission....
Model of ionospheric signal with the multiplicate hindrance
It is shown that unsteadiness parameters of components of the ionospheric signal leads to multiplicative noise. It largely affects the reliable data when receiving ionospheric signals. The estimation of the variance of the amplitudes for the reception of ionospheric signals with multiplicative noise. The results of studying ...
Estimation of parameters of of the ionospheric signal
The technique of an estimation of parameters of a dual-beam ionospheric signal is presented by a method of the maximum credibility. Results of modeling calculations and results of calculations of real ionospheric signals on line Moscow — Kaliningrad are resulted.
1. Перов А. И. Статистическая теория ...
Method of processing of the ionospheric signals pulse
The new method of processing of pulse ionospheric signals is presented. It is based on positions of the theory of optimum reception. However these positions are applied to difference to the equation received after transformation of the accepted message. The theory of a method of processing is presented,...
Research of polarising structure ionospheric signals Investigation of polarization structure of ionospheric signal
Results of analysis of the polarization structure of ionospheric signals. The orthogonally circular basis for assessing the polarization characteristics is used. The Pockels effect is experimentally verified.
Пахотин В. А.
Поляризация радиоволн КВ диапазона на наклонной ...