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The 33.2 MHz interferometric meteor radars located at Davis Station, Antarctica and Darwin, Australia typically detect around 15 000 specular underdense meteor echoes every day.
Measurements of the time taken for meteor radar … echoes to decay can be used to estimate the ambipolar … diffusion coefficient. If it is assumed that the decay of the … radar echo is due strictly to the outward diffusion of ionized … material in the meteor’s trail…
Fresnel transform meteor speed estimation is … investigated. A spectral based technique is developed allowing the transform to be applied at low temporal sampling rates. Simulations are used to compare meteoroid … speeds determined using the Fresnel transform and alternative techniques…
This paper presents the meteor temperatures estimated using two radars installed … in Davis (69 deg S, 78 deg E), Antarctica. The Davis MST radar was installed in … February 2003, primarily for observation of polar mesosphere summer echoes…