Patent ID: 8781030

Claim:
A system for removing interference from a composite received baseband signal comprising: an integer sample delay control (ISDC) configured to provide multiple sample delay control for a replica of an interfering signal and store an estimated delay value; an adaptive filter coupled to the ISDC and configured to provide fractional sample delay control for the replica of the interfering signal and optimize cancellation of the interfering signal present in the composite received baseband signal that comprises the interfering signal and a desired signal; a digital phase-locked loop (DPLL) coupled to the adaptive filter and programmed with a known frequency offset of the interfering signal that tracks a phase and frequency of the replica of the interfering signal; an automatic gain control (AGC) coupled to the adaptive filter and configured to maintain near full scale operation of adaptive filtering and the DPLL; and an error estimator comprising a mixer, a delay unit, and a slicer configured to update a coefficient of the adaptive filter.