A Method for Analyzing a Survey
of Scintillating Radio Sources

V. S. Artyukh and S. A. Tyul’bashev

Astrospace Center, Lebedev Institute of Physics, Russian Academy of Sciences,
ul. Profsoyuznaya 84/52, Moscow, 117810 Russia

Received March 10, 1995

Abstract—A method for an automated analysis of data from a survey of scintillating radio sources to be
obtained using the Large Phased Array of the Lebedev Institute of Physics has been developed. Difference and
median filters are used to remove effects interfering with the detection of scintillating sources. The parameters
for these filters are chosen so as to maximize the signal-to-noise ratio, which is very important when searching
for extremely weak scintillating sources. Model calculations are used to give the probability of missing a signal
as a function of the signal-to-noise ratio for a given acceptable probability of false detection of 0.001. The anal-
ysis method presented will make it possible to obtain a scintillating source survey complete in radio sources
having scintillation dispersions equal to the noise dispersion, with the expected number of false detections
being one in 1000. Estimates of the errors of the measured coordinates of the scintillating radio sources and of
the scintillation dispersions as functions of the signal-to-noise ratio are obtained.

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