How narrow is narrowband? [adaptive array signal processing]

Author

Zatman, Michael

Author_Institution

Lincoln Lab., MIT, Lexington, MA, USA

Volume

2

fYear

1997

fDate

2-5 Nov. 1997

Firstpage

1341

Abstract

The "narrowband" or zero-bandwidth assumption is often made in the analysis of array signal processing algorithms. This paper provides both a definition and expression which precisely define the notion of narrowband The expression accurately predicts the point when the "narrowband" assumption fails for some superresolution algorithms, the Cramer Rao bound on angle estimation and the signal-to-interference-plus-noise performance of adaptive beamformers. Hence it is a useful design point for many types of sensor array systems.

Keywords

adaptive antenna arrays; adaptive signal processing; array signal processing; direction-of-arrival estimation; interference (signal); linear antenna arrays; noise; Cramer Rao bound; adaptive beamformers; adaptive estimation; adaptive signal processing; angle estimation; array signal processing algorithms; narrowband assumption; sensor array systems; signal-to-interference-plus-noise performance; superresolution algorithms; uniform linear antenna array; zero-bandwidth assumption; Adaptive arrays; Adaptive signal processing; Algorithm design and analysis; Array signal processing; Cramer-Rao bounds; Narrowband; Sensor arrays; Signal analysis; Signal processing algorithms; Signal resolution;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-8186-8316-3

Type

conf

DOI

10.1109/ACSSC.1997.679122

Filename

679122