Nonlinear Least-Squares Approach to Freq
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Olivier Besson; Petre Stoica
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Article
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1999
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Elsevier Science
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English
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In this paper, we consider the problem of estimating the frequency of a sinusoidal signal whose amplitude could be either constant or time-varying. We present a nonlinear least-squares (NLS) approach when the envelope is timevarying. It is shown that the NLS criterion can be explicitly minimized wit