Title :
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
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;
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
DOI :
10.1109/SAM.2008.4606884
