DocumentCode
1657295
Title
Design of frequency invariant beamformers in subbands
Author
Zhao, Yong ; Liu, Wei ; Langley, Richard J.
Author_Institution
Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK
fYear
2009
Firstpage
201
Lastpage
204
Abstract
A least squares approach to the design of frequency invariant beamformers (FIBs) in subbands is proposed. In this approach, the desired fullband beam response is first expressed as a function of the subband beamformer coefficients, and then a closed form solution is obtained based on a constrained least squares formulation. Two design examples are provided, with one based on a uniform linear array and one based on a scaled aperture.
Keywords
array signal processing; least squares approximations; closed form solution; frequency invariant beamformers; least squares approach; scaled aperture; subband beamformer coefficients; uniform linear array; Apertures; Array signal processing; Closed-form solution; Delay; Filter bank; Fourier transforms; Frequency; Least squares methods; Sensor arrays; Sonar; Subband; frequency invariant beamformer; least squares; scaled aperture;
fLanguage
English
Publisher
ieee
Conference_Titel
Statistical Signal Processing, 2009. SSP '09. IEEE/SP 15th Workshop on
Conference_Location
Cardiff
Print_ISBN
978-1-4244-2709-3
Electronic_ISBN
978-1-4244-2711-6
Type
conf
DOI
10.1109/SSP.2009.5278603
Filename
5278603
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