How narrow is narrowband?
- 1 January 1998
- journal article
- Published by Institution of Engineering and Technology (IET) in IEE Proceedings - Radar, Sonar and Navigation
- Vol. 145 (2) , 85
- https://doi.org/10.1049/ip-rsn:19981670
Abstract
The \"narrowband\" assumption is often made in the analysis of array signal processing algorithms. The author provides a definition for the notion of narrowband, and the derivation of an expression which is useful in determining if a particular scenario qualifies as narrowband. The expression derived correctly predicts where the narrowband assumption fails for some super-resolution algorithms, the Cramer-Rao bound on angle estimation and the signal-to-interference plus noise performance of adaptive beamformers.Keywords
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