Chebyshev optimization for the design of broadband beamformers in the near field

被引：46

作者：

Nordholm, SE ^{[1
]}

Rehbock, V

Teo, KL

Nordebo, S

机构：

[1] Univ Karlskroniv, Dept Signal Proc, S-37225 Ronneby, Sweden

[2] Curtin Univ Technol, Sch Math, Perth, WA 6845, Australia

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING | 1998年 / 45卷 / 01期

关键词：

beamforming; Chebyshev optimization; near field;

D O I：

10.1109/82.659466

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The use of microphone arrays for video conferences, hands-free mobile telephony and computer applications has created the demand for near-field broadband beamformer design methods. Here, a general broadband beamformer design problem is formulated as a weighted Chebyshev optimization problem, and a method to solve the resulting functionally-constrained problem is presented, The formulation can also be applied to the design of multidimensional digital finite-impulse response (FIR) filters with an arbitrarily specified amplitude and phase. Numerical results that demonstrate the minimax near-field behavior of the designed beamformers are given.

引用

页码：141 / 143

页数：3

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