Patent ID: 8750258

Claim:
A method, comprising: analyzing a wide frequency band with respect to signal power levels in specified narrow frequency bands; detecting narrow band signal power levels received in the specified narrow frequency bands; selecting a subset of excluded narrow band signal power levels from the detected narrow band signal power levels, wherein the selecting of the subset of excluded narrow band signal power levels is according to an amount of signal power and is performed prior to averaging of the narrow band signal power levels; wherein the subset of excluded narrow band signal power levels corresponds to a first number of narrow band signal power levels that equals a second number of notch modules employed by a filter for filtering narrow band interference; determining an average composite wideband power level from the narrow band signal power levels without consideration of the subset of excluded narrow band signal power levels; determining an adaptive threshold based on the average composite wideband power level; and tracking narrow band interferers according to the adaptive threshold and the average composite wideband power level.