Method and system for noise measurement with combinable subroutines for the measurement, identification and removal of sinusoidal interference signals in a noise signal

Abstract

An approach is provided for measuring, identifying, and removing at least one sinusoidal interference signal (A·e, A·e) in a noise signal (w(t), w(μ·Δt)). A frequency range to be measured is split into a plurality of frequency bands (ν) via a Fast Fourier Transform (FFT) filter bank. For each of the frequency bands (ν), an autocorrelation matrix ({circumflex over (R)}) is determined, wherein parameters of the autocorrelation matrices ({circumflex over (R)}) are variably adjusted based on whether the at least one sinusoidal interference signal (A·e, A·e) is to be measured, identified, or removed and further based on at least one averaging. The autocorrelation matrices ({circumflex over (R)}) are jointly utilized for one or more of measuring, identifying, or removing the at least one sinusoidal interference signal (A·e, A·e) in the noise signal (w(t), w(μ·Δt)).