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Off-broadside main beam design for frequency invariant beamformers

Liu, W. and Weiss, S. (2008) Off-broadside main beam design for frequency invariant beamformers. In: International ITG Workshop on Smart Antennas, 2008. IEEE, pp. 190-194. ISBN 978-1-4244-1756-8

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Abstract

In a previously proposed design method for frequency invariant beamforming, the design for the case of an off-broadside main beam is not satisfactory. After a detailed analysis, we propose two methods to overcome this problem: one is to increase the length of the FIR filter attached to each sensor, as a result, we need to sample the transformed desired response more densely in the associated direction; the other one is to design a broadside main beam first, then it is convolved with appropriate steering delay filters. Design examples show that the two methods can provide satisfactory results.

Item type: Book Section
ID code: 14707
Keywords: fourier transforms, antenna arrays, broadband antennas, frequency invariant beamformers, off-broadside main beam design, steering delay filters, broadband arrays, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Strathprints Administrator
Date Deposited: 02 Sep 2010 08:53
Last modified: 18 Jun 2015 14:12
URI: http://strathprints.strath.ac.uk/id/eprint/14707

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