ADAPTIVE ROBUST JOINT SUPPRESSOR OF NARROWBAND INTERFERENCE AND IMPULSE NOISE IN BINAYR COMMUNICATION SYSTEMS

摘要

Disclosed is a circuit to eliminate an interference noise and an impact-wave noise of nonlinear adaptive narrow band within a binary data communication system. The circuit comprises a first nonlinear function part(theta.1(.)), a second nonlinear function part(theta2.(.)) and a nonlinear pre-estimator(Ar'(z)). The first nonlinear function part(theta.1(.)) eliminates a binary signal of non-gaussian component in a received sampling signal. The second nonlinear function part(theta2(.)) eliminates an impact-wave noise signal of non-gaussian component in a received sampling signal. The nonlinear pre-estimator(Ar(z)) pre-estimates current interference noise of narrow band by recomposed sampling signal from a feed back loop between the two function parts. Thereby, the interference noise and an impact-wave noise can be simultaneously eliminated.