Methods and Apparatus for Mitigating Spectrally Overlapping Non-Constant Envelope Interference Using Blind Interference Signal Suppression (BLISS) (14-20); Method and System For BLISS of Multilevel Spectrally Overlapping Interference Sources (15-01)

Under one aspect, a method is provided for processing a received signal, the received signal including a desired signal and an interference signal that spectrally overlaps the desired signal. The method can include obtaining an amplitude of the received signal. The method also can include obtaining an average amplitude of the received signal based on at least one prior amplitude of the received signal. The method also can include subtracting the amplitude from the average amplitude to obtain an amplitude residual. The method also can include, based upon an absolute value of the amplitude residual being less than or equal to a first threshold, inputting the received signal into an interference suppression algorithm so as to generate a first output including the desired signal with reduced contribution from the interference signal.