Patent ID: 7684528
Filing Date: 2010-03-23
Classification: H04B,H04L

Abstract:
1. In a communication network, a method for whitening colored noise present at the input of a receiver, the method comprising: sampling colored noise present at the input of the receiver during a sampling interval to produce a sampled signal; spectrally characterizing the sampled signal across a frequency band of interest to produce a spectral characterization of the sampled signal; modifying the spectral characterization of the sampled signal to produce a modified spectral characterization, wherein: wherein in modifying the spectral characterization, spectral components of the spectral characterization are averaged with corresponding spectral components of prior spectral characterizations; generating filter settings based upon the modified spectral characterization; and when a signal of interest and colored noise are present at the input of the receiver, filtering the input using the filter settings to whiten the colored noise at the input.