Hybrid Cramér-Rao bound for moving array

Author

Xie, Da ; Niu, Tingting ; Huang, Jianguo ; Ge, Hongya

Author_Institution

Coll. of Marine Eng., Northwestern Polytech. Univ., Xi´´an

fYear

2008

fDate

26-29 Oct. 2008

Firstpage

274

Lastpage

277

Abstract

Using the Cramer-Rao bound (CRB) as an indicator of potential performance, in this work we study a moving array´s ability to estimate parameters of a narrow-band signal. Specifically, the hybrid CRB on source frequency and bearing are studied for signals containing both random fading parameters and unknown deterministic ones. The derived hybrid CRB is compared to the traditional deterministic CRB (Edelson and Tufts, 1992) and the Gaussian CRB in the literature. The study provides information for the effective utilization of a moving aperture in estimating source bearing and frequency.

Keywords

array signal processing; parameter estimation; random processes; Gaussian CRB; deterministic CRB; frequency estimation; hybrid Cramer-Rao bound; moving array; narrow-band signal; parameter estimation; random fading parameter; source bearing estimation; Apertures; Educational institutions; Fading; Frequency estimation; Marine technology; Maximum likelihood estimation; Narrowband; Parameter estimation; Sensor arrays; Sonar equipment;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2008 42nd Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

978-1-4244-2940-0

Electronic_ISBN

1058-6393

Type

conf

DOI

10.1109/ACSSC.2008.5074407

Filename

5074407