A new class of broadband arrays with frequency invariant beam patterns

Liu, Wei and Weiss, S.; (2004) A new class of broadband arrays with frequency invariant beam patterns. In: Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE, CAN, pp. 185-188. ISBN 0-7803-8484-9 (https://doi.org/10.1109/ICASSP.2004.1326225)

[thumbnail of liu04b.pdf]
Preview
 PDF. Filename: liu04b.pdf
Final Published Version
Download (521kB)| Preview

Abstract

In this paper, a new class of broadband arrays with frequency-invariant beam patterns is proposed. By suitable substitutions, the beam pattern of a continuous sensor array with continuous temporal processing can be regarded as the Fourier transform of its spatio-temporal distribution. Based on this principle, starting from the desired frequency-invariant beam pattern, and by a series of substitutions, a simple design method is derived. This method can be applied to one-dimensional (1D), 2D, or 3D broadband arrays, either with continuous arrays and signal processing or with discrete arrays and signal processing. A 2D discrete design example is presented.

ORCID iDs

Liu, Wei and Weiss, S. ORCID logoORCID: https://orcid.org/0000-0002-3486-7206;
CORE (COnnecting REpositories)