An algorithm for cleaning extended interferences in radio astronomical records

An algorithm is described for removing extended interferences, for instance from a radar, which are shorter than the time of passage of a radio source across the beam of the radio telescope. The algorithm is developed on the basis of robust procedures with the application of extreme statistics. A procedure of removing ``jumps'' in observational records is also described. The results of performance of the algorithms are illustrated in the figures. The cleaning procedures are included in the standard data reduction system of RATAN-600.