Interference suppression in SS systems: A comparison between PTV P/S-type and W-type filters

The recently proposed LCL-PTV structures for narrowband interference suppression in DS/SS systems are examined and compared in terms of output SIR. New LCL-PTV prediction/subtraction filters are proposed, which are shown to provide the same SIR performances of the LCL-PTV whitening structures, with the additional advantage of being amenable to blind adaptive implementation. Simulation results are provided to support and expand the theoretical claims.