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An iterative algorithm for estimation of linear frequency modulated signal parameters

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2 Author(s)
C. De Luigi ; SIS, ISITV, La Valette Du Var, France ; E. Moreau

We consider the problem of estimation of a nonstationary signal. The time-frequency characteristics and, more precisely, the instantaneous frequency (IF) of such a signal can be highlighted by the Wigner-Ville transform (WVT). Using the properties of the cross WVT, we develop an iterative algorithm taking into consideration the presence of wrong frequencies in the estimated IF sequence of the signal. Finally, computer simulations are performed in order to illustrate the behavior of this iterative scheme.

Published in:

IEEE Signal Processing Letters  (Volume:9 ,  Issue: 4 )