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<p>We present a simulation method for synchronous reception of radio reflections from meteor trails with allowance for the numerical solution to the problem of oblique diffraction of radio waves by meteor ionization trails. Spatial correlation of the characteristics of random wind drift of meteor trails and nonspecular multiple-ionization points scattering from wind-distorted meteor trails is taken into account. A method for statistical modeling of the signal parameters synchronously recorded at two or more spaced receivers is described. Spatial correlation curves of the amplitude–time and phase–time responses of meteor radio reflections are obtained using a simulation approach. It is shown that the coherence radius of the signal amplitude can reach 350–400 km, which is consistent with known theoretical and experimental results. Estimates of the phase coherence radius of meteor radio reflections are made for the first time. It is shown that the phase coherence radius does not exceed 10–15 wavelengths. However, correction of phase measurements for the geometric phase increment and phase addition during radio wave scattering by a meteor trail expands the potential correlation region up to 6–18 km.</p>

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Simulation of Space-Diversity Reception of Radio Reflections from Meteor Trails

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • A. I. Sulimov,
  • A. I. Karpov,
  • A. O. Savastyanov

摘要

We present a simulation method for synchronous reception of radio reflections from meteor trails with allowance for the numerical solution to the problem of oblique diffraction of radio waves by meteor ionization trails. Spatial correlation of the characteristics of random wind drift of meteor trails and nonspecular multiple-ionization points scattering from wind-distorted meteor trails is taken into account. A method for statistical modeling of the signal parameters synchronously recorded at two or more spaced receivers is described. Spatial correlation curves of the amplitude–time and phase–time responses of meteor radio reflections are obtained using a simulation approach. It is shown that the coherence radius of the signal amplitude can reach 350–400 km, which is consistent with known theoretical and experimental results. Estimates of the phase coherence radius of meteor radio reflections are made for the first time. It is shown that the phase coherence radius does not exceed 10–15 wavelengths. However, correction of phase measurements for the geometric phase increment and phase addition during radio wave scattering by a meteor trail expands the potential correlation region up to 6–18 km.