On the problems of detecting Fast Radio Bursts with the LPA LPI

Abstract

The paper presents the verification of previously published fast radio bursts (FRB) from the work of V.A. Fedorova and A.E. Rodin, detected in the monitoring data of the Large Phased Array (LPA) radio telescope using a search algorithm based on the convolution of data with a scattered pulse pattern. The same 6-channel data (channel width 415 kHz) were used for verification, in which FRBs were detected with dispersion measures of 247, 570 and 1767 pc/cm3. Additional verification of the published FRB was also carried out in 32-channel data (channel width 78 kHz). We have not been able to confirm any published FRB on the signal-to-noise ratios stated in the original paper. The main errors are caused by incorrect identification of the baseline and incorrect estimation of the standard deviations of noise.