Published In

EURASIP Journal on Advances in Signal Processing

Document Type

Article

Publication Date

3-1-2010

Subjects

Kalman filtering, Frequencies of oscillating systems -- Measurement, Modulation (Electronics) -- Mathematical models

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.

Description

Copyright © 2010 Sunghan Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

DOI

10.1155/2010/467150

Persistent Identifier

http://archives.pdx.edu/ds/psu/7640

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