Apparatus and method for cancellation of RF interference in a wired data communication link

An apparatus for cancellation of radio frequency interference coupling into a wired data communication link, the apparatus comprising:

• an input configured to provide an input signal, wherein the input signal forms a digital representation of a signal received via the wired data communication link;
• an adaptive feed forward digital filter, configured to filter the input signal in order to provide a feed forward filtered input signal;
• an adaptive feedback digital filter, configured to filter a superposition signal in order to provide a feedback filtered output signal, wherein the superposition signal represents an addition of the feed forward filtered input signal and the feedback filtered output signal;
• an adjuster, configured to adjust the adaptive feed forward digital filter and the adaptive feedback digital filter based on an error signal, the error signal representing a difference between the input signal and the superposition signal;
• and
• a correlator, configured to provide an autocorrelation of the input signal,
• wherein the adjuster is configured to adjust the adaptive feed forward digital filter and the adaptive feedback digital filter based on a bootstrapping configuration of the adaptive feed forward digital filter and the adaptive feedback digital filter;
• wherein the bootstrapping configuration of the adaptive feed forward digital filter and the adaptive feedback digital filter is based on the autocorrelation of the input signal.