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Chirp parameter estimation from a sample covariance matrix
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0003-2298-6774
2001 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 49, no 3, 603-612 p.Article in journal (Refereed) Published
Abstract [en]

This paper considers the problem of estimating the bandwidth and the center frequency of a linear chirp signal. The nonstationarity property of chirp signals implies that the signal has high rank and reduces the applicability of subspace-based algorithms significantly. However, the special structure of the sample covariance matrix invites the use of regular frequency estimation algorithms. Herein, we show how subspace-type algorithms may be modified to provide accurate signal parameter estimates for linear chirp signals at reasonable complexity, The root-MUSIC algorithm will be used as an example.

Place, publisher, year, edition, pages
2001. Vol. 49, no 3, 603-612 p.
Keyword [en]
chirp signal, polynomial phase, root-MUSIC, subspace, polynomial-phase transform, signals
URN: urn:nbn:se:kth:diva-20406ISI: 000167226200014OAI: diva2:339101
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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