Title :
Broadband array design for performance improvement
Author :
Zeng, Qingsheng ; O´Shaughnessy, D.
Author_Institution :
INRS-Telecommun., Quebec Univ., Montreal, Que., Canada
Abstract :
This paper addresses a new design methodology for broadband arrays, which imposes no restriction on the desired far- and near-field beam pattern, can cope with arbitrarily wide bandwidths and has computational simplicity and accuracy. We clarify the concepts and demonstrate the feasibility of the design procedure with an example design covering a 10:1 frequency range, which is suitable for speech acquisition using a microphone array
Keywords :
acoustic transducer arrays; microphones; transforms; Legendre transformation technique; broadband array design; computational accuracy; computational simplicity; far-field beam pattern; frequency range; microphone array; near-field beam pattern; performance improvement; speech acquisition; Apertures; Bandwidth; Design methodology; Filters; Frequency; Microphone arrays; Sampling methods; Sensor arrays; Speech; Wideband;
Conference_Titel :
Electrical and Computer Engineering, 2001. Canadian Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-6715-4
DOI :
10.1109/CCECE.2001.933670
