Wavelet enhancement for detecting shower structure in radar meteoroid orbit data I Methodology

D. P. Galligan* and W. J. Baggaleya aDept. of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.

A new method is introduced for the detection of shower structure in a predominantly sporadic radar meteoroid orbit data set for the case where no a priori knowledge of this structure is assumed. Wavelet enhancement within radiant regions, in conjunction with speed partitioning and sliding windows in time, is used to detect these showers. A test is developed to determine the significance of any structure detected. This method is successfully tested on the amor data set and is shown, as an example, to clearly detect the Southern <5 Aquarids meteor shower.

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