Patent ID: 7840385

Claim:
A system for the identification of sinusoidal interference signals from a noise signal comprising: a Fast Fourier Transform filter bank for generation of several frequency bands (v) for a measured signal (x(t), x(μ·Δt)), composed from the sinusoidal interference signals (A k ·e j(ω k t+φ k ) , A k ·e j(ω k μ·Δt+φ k ) ) and the noise signal (w(t), w(μ·Δt)); a unit for estimation ( 5 1 , 5 2 , . . . , 5 NFFT ) of an autocorrelation matrix ({circumflex over (R)} v ) of the measured signal (x(t), x(μ·Δt)) supplied from the Fast Fourier Transform filter bank; a unit ( 8 1 , 8 2 , . . . , 8 NFFT ), in communication with the unit for the estimation ( 5 1 , 5 2 , . . . , 5 NFFT ) of the autocorrelation matrix ({circumflex over (R)} v ), for frequency estimation of spectral lines associated with the sinusoidal interference signals (A k ·e j(ω k t+φ k ) , A k ·e j(ω k μ·Δt+φ k ) ); and a unit ( 9 1 , 9 2 , . . . , 9 NFFT ), in communication with the unit for the estimation ( 5 1 , 5 2 , . . . , 5 NFFT ) of the autocorrelation matrix ({circumflex over (R)} v ), for power-level determination of the spectral lines associated with the sinusoidal interference signals (A k ·e j(ω k t+φ k ) , A k ·e j(ω k μ·Δt+φ k ) ).