Patent ID: 8614940

Claim:
A system for processing a group of signals and interference, the system comprising: (a) an analog-to-digital (A/D) converter configured to digitize the group of signals and the interference; (b) a Fourier transform circuit coupled to the A/D converter and configured to obtain a Fourier transform of the digitized group of signals and the interference and to provide as output spectral bins, each bin having a power level, at least some of the bins respectively containing portions of the digitized group of signals, and at least one of the bins containing the interference; (c) a power analysis circuit configured (i) to compare the collective power level of the spectral bins output by the Fourier transform circuit to a predetermined threshold, and if the collective power level exceeds the predetermined threshold, (ii) to obtain a dynamically defined threshold having a value that, if spectral bins having power levels exceeding that threshold are excised, would reduce the collective power level to or below the predetermined threshold, and (iii) to excise at least one spectral bin that contains the interference and exceeds the dynamically defined threshold; and (d) an inverse Fourier transform circuit configured to obtain an inverse Fourier transform of the remaining spectral bins and to provide as output a digitized group of signals less the interference in any excised spectral bin.