Joint time delay and frequency estimation via state-space realization

Author

Wu, Y. ; So, H.C. ; Ching, P.C.

Author_Institution

Lab. for Radar Signal Process., Xidian Univ., Xian, China

Volume

10

Issue

11

fYear

2003

Firstpage

339

Lastpage

342

Abstract

By applying a two-dimensional parameter estimation method proposed by M. Viberg and P. Stoica (see Conf. Rec. 32nd Asilomar Conf. Signals, Systems, Computers, vol.2, p.735-9, 1998), we develop a subspace method for estimating the differential delay of a sinusoidal signal received at two separated sensors as well as the sinusoidal frequencies. Using state-space realization, the time delay and frequency estimates are obtained from the state transition and observation matrices. Performance evaluation via computer simulations is included to demonstrate the effectiveness of the proposed algorithm.

Keywords

array signal processing; delay estimation; frequency estimation; matrix algebra; state-space methods; differential delay; frequency estimation; separated sensors; sinusoidal signal; state observation matrices; state transition matrices; state-space realization; time delay estimation; two-dimensional parameter estimation method; Delay effects; Delay estimation; Eigenvalues and eigenfunctions; Frequency estimation; Frequency shift keying; Microphone arrays; Multiaccess communication; Parameter estimation; Signal processing algorithms; State estimation;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2003.817854

Filename

1237632