Spatial aliasing for near-field sensor arrays

被引：7

作者：

Abhayapala, TD ^{[1
]}

Kennedy, RA

Williamson, RC

机构：

[1] Australian Natl Univ, Res Sch Informat Sci & Engn, Telecommun Engn Grp, Canberra, ACT 0200, Australia

[2] Australian Natl Univ, Fac Engn & Informat Technol, Dept Engn, Canberra, ACT 0200, Australia

来源：

ELECTRONICS LETTERS | 1999年 / 35卷 / 10期

关键词：

D O I：

10.1049/el:19990561

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：

An investigation is presented into the presence of spatial aliasing due to the operation of a linear array in the near-field. It shows that the standard half wavelength sensor spacings rule, which guarantees that no aliasing will occur in the operation of far-field arrays, is not sufficient to prevent aliasing in the near-field. This claim is justified by theoretical considerations and corroborated by simulation results.

引用

页码：764 / 765

页数：2

共 7 条

[1]

[Anonymous], 1961, BESSEL FUNCTIONS ENG

[2]

Erdelyi A., 1954, TABLES INTEGRAL TRAN, VII

[3]

FLANAGAN JL, 1991, ACUSTICA, V73, P58

[4] BEAMWIDTH AND USEABLE BANDWIDTH OF DELAY-STEERED MICROPHONE ARRAYS [J].

FLANAGAN, JL .

AT&T TECHNICAL JOURNAL, 1985, 64 (04) :983-995

[5] A MICROPHONE ARRAY FOR CAR ENVIRONMENTS [J].

GRENIER, Y .

SPEECH COMMUNICATION, 1993, 12 (01) :25-39

[6]

KHALIL F, 1994, J AUDIO ENG SOC, V42, P691

[7] Chebyshev optimization for the design of broadband beamformers in the near field [J].

Nordholm, SE ;

Rehbock, V ;

Teo, KL ;

Nordebo, S .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 1998, 45 (01) :141-143

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