Efficient design of frequency invariant beamformers with sensor delay-lines

Author

Zhao, Yong ; Liu, Wei ; Langley, Richard J.

Author_Institution

Commun. Res. Group, Univ. of Sheffield, Sheffield

fYear

2008

fDate

21-23 July 2008

Firstpage

335

Lastpage

339

Abstract

The design of frequency invariant beamformers for traditional tapped delay-line array system can be formulated as a convex optimization problem and solved efficiently using the interior-point methods. This approach is extended to the recently proposed broadband beamforming system with sensor delay-lines and some variations are proposed to cope with the specific requirements in the design. Design examples are provided to show the effectiveness of the proposed method.

Keywords

array signal processing; convex programming; delay lines; broadband beamforming system; convex optimization problem; frequency invariant beamformers; interior-point methods; sensor delay-lines; tapped delay-line array system; Array signal processing; Constraint optimization; Delay systems; Design methodology; Design optimization; Fourier transforms; Frequency; Sensor arrays; Sensor phenomena and characterization; Sensor systems; convex optimization; frequency invariant beamformer; sensor delay-line;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor Array and Multichannel Signal Processing Workshop, 2008. SAM 2008. 5th IEEE

Conference_Location

Darmstadt

Print_ISBN

978-1-4244-2240-1

Electronic_ISBN

978-1-4244-2241-8

Type

conf

DOI

10.1109/SAM.2008.4606884

Filename

4606884