Suppression of Bandpass Interference in Digital Communication Systems with an a Priori Unknown Type of Modulation

Modern digital communication systems operate in complex radio-electronic environments. This is expressed in the presence of a large number of communication systems, the frequency bands of which can not only intersect, but also overlap. Also, digital communication systems use different modulation schemes, which imposes requirements specific to each type of modulation. Currently known methods of blind interference suppression assume the presence of several spatially separated receiving points. This article proposes an algorithm for suppressing bandpass interference using adaptive basis signal decomposition methods and blind separation methods that allow the use of a single receiving point. An example of the application of this algorithm in suppressing bandpass interference when receiving a signal with differential binary phase shift keying is considered.