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Mathematical Problems in Engineering
Volume 2014, Article ID 712509, 5 pages
http://dx.doi.org/10.1155/2014/712509
Research Article

Parameters Estimation of Interharmonic Based on State Space Model

Luoyang Electronic Equipment Test Center, Jiyuan, Henan 459000, China

Received 21 May 2013; Revised 6 November 2013; Accepted 7 November 2013; Published 13 February 2014

Academic Editor: Grigori M. Sisoev

Copyright © 2014 Yuan Shiji 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.

Abstract

The special Hankel matrix is structured from interharmonic sampling, which is described by state space model. A method of parameters estimation based on state space model is proposed, which can achieve interharmonics frequency, amplitude and, phase of the joint estimation. The simulation results show that the method can effectively restrain white Gaussian noise, with superior performance.