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            <title xml:lang="en">Time Scale Approach for Chirp Detection</title>
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                <forename type="first">Marcela</forename>
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                <term xml:lang="en">ridge detection  AMS Subject Classification: 41A60</term>
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              <p>Two different approaches for joint detection and estimation of signals embedded in stationary random noise are considered and compared, for the subclass of amplitude and frequency modulated signals. Matched filter approaches are compared to time-frequency and time scale based approaches. Particular attention is paid to the case of the so-called " power-law chirps " , characterized by monomial and polynomial amplitude and frequency functions. As target application, the problem of gravitational waves at interferometric detectors is considered.</p>
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