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Range estimation for SSL HFDF systems by means of a multiquasiparabolic ionospheric model

Range estimation for SSL HFDF systems by means of a multiquasiparabolic ionospheric model

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  • Author(s): D.C. Baker 1  and  S. Lambert 2
    • View affiliations
    • Affiliations: 1: Department of Electronics and Computer Engineering, University of Pretoria, Pretoria, South Africa
      2: Division of Microelectronics and Communications Technology, Council for Scientific and Industrial Research, Pretoria, South Africa
  • Source: Volume 136, Issue 2, April 1989, p. 120 – 125
    DOI:  10.1049/ip-h-2.1989.0022 , Print ISSN 0950-107X, Online ISSN 2053-907X
© The Institution of Electrical Engineers
Published

This paper describes a computationally simple multiquasiparabolic (MQP) model which is largely defined in terms of standard scaled ionospheric parameters. The model gives analytic expressions for ground range estimation. Its results compare favourably with those obtained using numerical ray-tracing through a Dudeney ionosphere. In its present form the MQP model is suitable for use in operational single site location HF direction finding systems at geomagnetic mid-latitudes.

Inspec keywords: radio direction-finding; ionospheric electromagnetic wave propagation; radiowave propagation

Other keywords: operational single site location; Dudeney ionosphere; HF direction finding systems; ground range estimation; radiowave propagation; multiquasiparabolic ionospheric model; geomagnetic midlatitudes

Subjects: Radiowave propagation; Radionavigation and direction finding; Ionospheric electromagnetic wave propagation

References

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      • T.A. Croft , H. Hoogasian . Exact ray calculations in a quasiparabolic ionosphere with no magnetic field. Radio Sci. , 69 - 74
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      • Jones, R.M., Stephenson, J.J.: `A versatile threedimensional ray tracing computer program for radio waves in the ionosphere', 75–76, Report, October 1975.
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      • Teters, L.R., Lloyd, J.L., Haydon, G.W., Lucas, D.L.: `Estimating the performance of telecommunication systems using the ionospheric transmission channel — ionospheric communications analysis and prediction program — user's manual', 83–127, NTIA Report, 1983.
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      • J.R. Dudeney . An improved model of the variation of electron concentration with height in the ionosphere. J. Atmos. Terr. Phys. , 195 - 203
    12. 12)
      • D.C. Baker , S. Lambert . Multiparabolic ionospheric model for SSL application. Electron. Lett. , 425 - 426
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