The use of the Barankin bound for determining the threshold SNR in estimating the bearing of a source in the presence of another

Author

Reuven, Ilan ; Messer, Hagit

Author_Institution

Dept. of Electr. Eng.- Syst., Tel Aviv Univ., Israel

Volume

3

fYear

1995

fDate

9-12 May 1995

Firstpage

1645

Abstract

We report results of a research in which we studied the problem of determining the threshold signal to noise ratio (SNR) between large and small errors in the estimation of the direction of arrival (DOA) of a radiating, far-field source in the presence of another. Using the Barankin lower bound (BB) we examine the conditions under which achievable mean square error (MSE) performance of any unbiased DOA estimator deviates substantially from the Carmer-Rao lower bound (CRB). We present expressions for the threshold SNR as a function of the source-array geometry and the sources SNR where one and two sources, of known/unknown spectral parameters and DOAs, are present

Keywords

direction-of-arrival estimation; error analysis; noise; spectral analysis; Barankin lower bound; Carmer-Rao lower bound; DOA; MSE; bearing estimation; direction of arrival; estimation errors; mean square error; radiating far-field source; research; source-array geometry; spectral parameters; threshold SNR; threshold signal to noise ratio; unbiased DOA estimator; Additive noise; Bayesian methods; Degradation; Direction of arrival estimation; Mean square error methods; Parameter estimation; Performance analysis; Predictive models; Sensor arrays; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on

Conference_Location

Detroit, MI

ISSN

1520-6149

Print_ISBN

0-7803-2431-5

Type

conf

DOI

10.1109/ICASSP.1995.479887

Filename

479887