Robust Time-Frequency Distributions with Complex-Lag Argument. (13th April 2010)

• Record Type: Journal Article
• Authors: Žarić Žarić, Nikola Nikola; Orović Orović, Irena Irena; Stanković Stanković, Srdjan Srdjan
• Other Names: Djurović Djurović Igor Igor Academic Editor.
• Is Part Of: EURASIP journal on advances in signal processing. Volume 2010(2010)
• Publication Date: 2010-04-13
• Subjects: Signal processing -- Periodicals; Traitement du signal; Signal processing; Periodicals; 621.3822
• DOI: 10.1155/2010/879874
• Languages: English
• ISSNs: 1687-6172

Abstract

Abstract : The robust time-frequency distributions with complex-lag argument are proposed. They can provide an accurate estimation of fast varying instantaneous frequency in the presence of noise with heavy-tailed probability density function. The L-estimate form of this distribution is defined and it includes the L-estimate form of Wigner distribution as a special case. A modification for multicomponent signal representation is proposed, as well. Theoretical considerations are illustrated by the examples.