Orthogonal, exactly periodic subspace decomposition

Authors:
D.D. Muresan;T.W. Parks
Affiliations:
Digital Multi-Media Design, Arlington, VA, USA;-
Venue:
IEEE Transactions on Signal Processing
Year:
2003

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Abstract

The detection and estimation of machine vibration multiperiodic signals of unknown periods in white Gaussian noise is investigated. New estimates for the subsignals (signals making up the received signal) and their periods are derived using an orthogonal subspace decomposition approach. The concept of exactly periodic signals is introduced. This in turn simplifies and enhances the understanding of periodic signals.