Abstract: Experimental results of measurements of surface impedance and reception
of signal levels on radio paths up to 20 km in length in the coastal Arctic
zone near the Tiksi are considered. At each point of determining the field level,
surface impedance measurements were made using signals from radio stations
operating at frequencies of 25, 320 and 660 kHz. The comparison of the measured
and calculated values of the ground-field level and the attenuation function
module over the permafrost paths was performed at frequencies of radio stations
of the Tiksi airport (320 and 660 kHz). The ground wave field attenuation
function was calculated using the integral equation method for multi-sectional
impedance paths. The results of the evaluation of the effect of electrical
inhomogeneities on the propagation of radio waves showed good agreements with
the calculations.
Key words: Earth’s wave field, an attenuation function, surface impedance, water
conductivity.
References
1. Bashkuev Yu.B., Melchinov
V.P., Dembelov M.G., Angarkhaeva L.Kh., Buyanova D.G., Borsoev V.A. Effect of
the cryolithic zone electrical properties on the medium-frequency surface wave
at high latitudes. Geomagnetizm and aeronomy. 2006, Vol.4, No. 4, pp.
507-516.
2. Tsydypov Ch.Ts., Tsydenov
V.D., Bashkuev Yu.B. Issledovaniye elektricheskih svoystv podstilayuschey
sredy. [The research of electrical properties of underlying media].
Novosibirsk, Nauka Publ. house. 1979. 176 p. (In Russian)
3. Bashkuev Yu.B. Elektricheskiye svoystva prirodnyh sloistyh sred. [Electrical properties of natural
layered media]. Novosibirsk, SB RAS Publ. house. 1996. 207 p. (In Russian)
4. Melchinov V.P., Bashkuev
V.P., Angarkhaeva L.Kh., Buyanova D.G. Electricheskiye svoystva kriolitozony
vostoka Rossii v radiodiapazone. [Electrical properties of cryolitozone of
the East part of Russia in the radio range]. Ulan-Ude, BSC SB RAS Publ. house.
2006. 257 p. (In Russian)
5. Dembelov M.G., Bashkuev
Yu.B., Melchinov V.P. Determination
of an attenuation function of the Earth’s wave field for reception on different
heights of aircraft fly. Zhurnal
Radioelektroniki - Journal of Radio Electronics, 2016,
No. 10. Available at http://jre.cplire.ru/jre/oct16/8/text.pdf (In Russian)
6. Bashkuev Yu.B., Dembelov
M.G., Naguslaeva I.B., Buyanova D.G. Modeling of the service zone of the MF
radio beacon for transmission of GNSS differential corrections. Electromagnetic
waves and electronic systems. 2013, Vol.18, No. 6, pp. 8-14. (In Russian)
7. Bashkuev Yu.B.,
Angarkhaeva L.Kh., Dembelov M.G., Naguslaeva I.B., Khaptanov V.B., Buyanova D.G.
Methods and results of calculations of the Earth’s wave field intensity for
LF-MF-HF channels of communicationson high latitude multi-sectional impedance
paths. Tekhnika radiosvyazi - Radio communication techniques. 2015,
Issue 1(24), pp. 3-15. (In Russian)
8. Hufford G.A. An integral equation
approach to the problem of wave propagation over an irregular surface. Quarterly
of Applied Mathematics, 1952, Vol.9, pp. 391-404.
9. Proskurin
E.P., Pylayev A.A., Tihomirov N.P., Shteinberg A.A. Radio wave propagation over
electrical and geometrical inhomogeneous paths. Problems of diffraction and
wave propagation, Leningrad. LGU Publ. house. 1981, Issue 18, pp. 171-183.
(In Russian)