| 摘要 |
A method for removing sinusoidal interference signals from a noise signal. The method includes transforming a measured signal (x(t), x(mu.Deltat)), which is composed of a limited number of sinusoidal interference signals (Ak.ej(omegakt+phik), Ak.ej(omegakmu.Deltat+phik)) and a white noise signal (w(t), w(mu.Deltat)), into a subspace containing noise components and a subspace containing interference-signal components, and forming the spectrum of only the noise signal using the subspace containing the noise components. The entire frequency range is split into several frequency bands (nu), in which each measured signal (x(t), x(mu.Deltat)) consists of a limited number (p(nu)) of sinusoidal interference signals and a white noise signal.
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