Modification of the robust chirp-rate estimator for impulse noise environments

作者：Djurovic Igor^*; Wang Pu; Ioana Cornel

来源：Signal Processing, 2010, 90(5): 1730-1736.

DOI：10.1016/j.sigpro.2009.10.022

• Polynomial phase signals
• Parameter estimation
• Chirp-rate
• Robust statistics

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.

• 出版日期2010-5