Title
Design of broadband beamformers with low complexity.
Abstract
In this article, we consider the design of broadband beamformers with low complexity. In fact, the design problem is multi-objective in nature, trading off between speech distortion and noise suppression. Finding a balance between these two objectives is important in order to achieve a desired sound quality. These measures are introduced as the objectives here. The design can then be obtained via a bi-objective integer programming problem, where the coefficients of the filters are expressed as sums of signed powers-of-two terms. We study two different integer spaces and penalty functions for solving the problem. Then, an algorithm based on a discrete filled function is developed for finding the optimal design. In order to illustrate the effectiveness of the algorithm, real data is used and two broadband beamformers are demonstrated.
Year
DOI
Venue
2012
10.1186/1687-6180-2012-62
EURASIP J. Adv. Sig. Proc.
Keywords
Field
DocType
algorithms,design,integer programming,beamforming
Integer,Computer science,Optimal design,Broadband,Sound quality,Integer programming,Artificial intelligence,Sequential quadratic programming,Finite impulse response,Beamforming,Mathematical optimization,Algorithm,Machine learning
Journal
Volume
Issue
ISSN
2012
1
1687-6180
Citations 
PageRank 
References 
5
0.36
12
Authors
4
Name
Order
Citations
PageRank
Zhi Guo Feng1464.22
Ka Fai Cedric Yiu217623.70
K. L. Teo31643211.47
Sven Nordholm440562.82