Multiharmonic Frequency Tracking Method Using The Sigma-Point Kalman Smoother. (22nd March 2010)

• Record Type: Journal Article
• Authors: Kim Kim, Sunghan Sunghan; Paul Paul, Anindya S. Anindya S.; Wan Wan, Eric A. Eric A.; McNames McNames, James James
• Other Names: Hong Hong Sangjin Sangjin Academic Editor.
• Is Part Of: EURASIP journal on advances in signal processing. Volume 2010(2010)
• Publication Date: 2010-03-22
• Subjects: Signal processing -- Periodicals; Traitement du signal; Signal processing; Periodicals; 621.3822
• DOI: 10.1155/2010/467150
• Languages: English
• ISSNs: 1687-6172

Abstract

Abstract : Several groups have proposed the state-space approach to tracking time-varying frequencies of multiharmonic quasiperiodic signals. The extended Kalman filter/smoother (EKF/EKS) is one of the common frequency tracking approaches seen in the literature. We introduce a multiharmonic frequency tracker based on the forward-backward statistical linearized Sigma-Point Kalman smoother (FBSL-SPKS) and compare its performance to that of the extended Kalman smoother (EKS). In all cases the FBSL-SPKS tracker outperformed the EKS tracker over a wide range of signal-to-noise (SNR) ratios. We also demonstrate its superior performance on real signals.