Active interference eliminator, signal insulation controller, and method for actively eliminating interference

摘要

The apparatus comprises a receiver chain (241) including an input node (226) and a transmitter chain (200) comprising a tap (228) and an output node (214).An auxiliary transmitter chain (227) includes a signal output coupled to an auxiliary input node (229), an adaptive filter unit (231, 252, 255) and an input node (226) coupled to a tap node (228).The filter units (231, 252, 255) include an interpolation processor (255), an adaptive filter (231), and a coefficient processor (252) coupled to the receiver chain (241) and the adaptive filter (231).The transmitter chain (200) generates a first waveform including a plurality of frequency separation signals.At the same time, the auxiliary chain (227) applies a second waveform including another plurality of frequency separation signals at an input node (226).The receiver chain (241) receives the waveform coupled from the output node (214) and the composite waveform including the second waveform.The first waveform lacks signals required for the determination of the coefficients of the filter (231) whose frequency corresponds to another plurality of signals in the second waveform.