Chebyshev Optimization for the Design of Broadband Beamformers in the Near Field
| Document type: | Journal Articles |
|---|---|
| Article type: | Original article |
| Peer reviewed: | Yes |
| Author(s): | Sven Nordholm, Volke Rehbock, Kok Ley Teo, Sven Nordebo |
| Title: | Chebyshev Optimization for the Design of Broadband Beamformers in the Near Field |
| Journal: | IEEE transactions on circuits and systems. 2 : Analog and digital signal processing |
| Year: | 1998 |
| Volume: | 45 |
| Issue: | 1 |
| Pagination: | 141-143 |
| ISSN: | 1057-7130 |
| Publisher: | IEEE Circuits and Systems Society |
| City: | New York |
| Organization: | Blekinge Institute of Technology |
| Department: | Dept. of Signal Processing (Institutionen för signalbehandling) Dept. of Signal Processing S-372 25 Ronneby +46 455 780 00 http://www.hk-r.se/isb/isb_en.html |
| Authors e-mail: | Sven.Nordholm@isb.hk-r.se |
| Language: | English |
| Abstract: | 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. |
| Subject: | Signal Processing\Beamforming Signal Processing\Filter Design |
| Note: | Submitted for publication in IEEE Transactions on Circuits and Systems, II: Analog and Digital Signal Processing, January 1996 |
