The amor meteoroid orbit radar facility  has been in operation since 1990. Over the 1995 to mid-1999 period ~ 5 x 105 high quality meteoroicj orbits were catalogued using this radar. The meteoroids detected ranged in size down to ~ 40 nm. It is expected, given such a small limiting size and the mass distribution index, that the majority of these would be sporadic—detecting shower structure against such a background is difficult. Wavelet enhancement techniques have been used in many previous studies to detect structure in similarly noisy astronomical (but not meteor) environments (e.g. [2,3,6]). A related method which has been applied to the amor meteoroid orbit data set is introduced here.
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