Some simple expressions for the beamforming properties of focused high‐resolution circular arrays, with applications to refocusing systems
作者:
James F. Lynch,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1983)
卷期:
Volume 74,
issue 3
页码: 847-850
ISSN:0001-4966
年代: 1983
DOI:10.1121/1.389871
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Some simple analytical expressions for two important optical characteristics of focused high‐resolution circular arrays are derived, specifically those for beam patterns and depths of field. The expressions generated, in addition to providing simple estimational tools for array design purposes, also lend themselves to straightforward interpretation in terms of the Fourier (farfield) and Fresnel (nearfield) kernels. Applications to refocusing arrays are discussed, as well as similarities and differences between such (sonar oriented) systems and radar and optical systems.
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