Modification of Robust chirp-rate estimator for impulse noise environments

Igor Djurovic (1) , Pu Wang (2) , Cornel Ioana (3)

1 UCG - University of Montenegro
2 Stevens Institute of Technology [Hoboken]
3 GIPSA-SIGMAPHY - GIPSA - Signal Images Physique

A modification of the robust chirp-rate estimator is proposed. The proposed technique has large breakdown point resulting in robustness to high amount of the impulse noise. In this approach, robust filtering of the polynomial-phase signals (PPS) is performed in an initial stage followed by the standard chirp-rate estimation for filtered signal. Numerical examples confirm accuracy of the proposed technique with pre-filtering in the initial stage.

Mots clés: Polynomial phase signals; Parameter estimatio; n Chirp-rate; Robust statistics

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Igor Djurovic, Pu Wang, Cornel Ioana. Modification of Robust chirp-rate estimator for impulse noise environments. Signal Processing, 2010, 90 (5), pp.1730-1736. ⟨10.1016/j.sigpro.2009.10.022⟩. ⟨hal-00537289⟩