Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996dps....28.1604m&link_type=abstract
American Astronomical Society, DPS meeting #28, #16.04; Bulletin of the American Astronomical Society, Vol. 28, p.1120
Astronomy and Astrophysics
Astronomy
Scientific paper
We report on the development of a radio/computer system for monitoring meteor activity. The radio receiver is tuned to a commercial television transmitter located beyond the local horizon, so that the system is normally unable to detect a signal. When a meteor enters the atmosphere between the transmitter and receiver it creates an ion trail which can reflect some power between them. We have interfaced the radio's automatic gain control voltage to a personal computer by means of an analog-to-digitial board. The computer is programmed to save 5 seconds of 20 Hz data whenever the signal jumps by 4 db or more. Since false triggering can be a problem, our software checks for the most common types of false positives: airplane reflections and sudden electrical impulses. Numerous meteor echos have been obtained, and are being analyzed. We plan to monitor this activity for one year, and relate the observations to the rate of meteoroids entering the atmosphere.
Espenak Fred
Mallama Anthony
Mobile R.
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