Properties and applications of wideband Cramer-Rao bounds

Author

Zatman, Michael

Author_Institution

Lincoln Lab., MIT, Lexington, MA, USA

fYear

1998

fDate

14-16 Sep 1998

Firstpage

41

Lastpage

44

Abstract

In this paper, the Cramer-Rao Bound on the angle estimates of non-zero bandwidth signals incident on an array of sensors is derived. The resulting expressions are applied to a variety of array steering architectures such as conventional phase steering and time-delay steering/focusing matrices. The results have a number of practical applications, e.g., determining the minimum number of directions where time-delay steering/focusing is required in order to obtain good all-round performance

Keywords

antenna phased arrays; array signal processing; covariance matrices; direction-of-arrival estimation; linear antenna arrays; all-round performance; angle estimates; array steering architectures; conventional phase steering; covariance matrix; non-zero bandwidth signals; sensor array; sensor array processing; time-delay steering/focusing matrices; uniform linear array; wideband Cramer-Rao bounds; Bandwidth; Covariance matrix; Frequency; Integral equations; Linear antenna arrays; Narrowband; Phased arrays; Sensor arrays; Signal processing; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal and Array Processing, 1998. Proceedings., Ninth IEEE SP Workshop on

Conference_Location

Portland, OR

Print_ISBN

0-7803-5010-3

Type

conf

DOI

10.1109/SSAP.1998.739329

Filename

739329