Optimal array pattern synthesis for broadband arrays

The Journal of the Acoustical Society of America
Shefeng YanChaohuan Hou

Abstract

Broadband beamformers with constant mainlobe response over the frequency of interest are desirable in many applications including underwater acoustics, ultrasonics, acoustic imaging and communications, and so on. Solutions to this problem have been presented for specific array geometry often requiring a larger number of sensors. And the array pattern synthesis error minimization is employed for the whole field of view, which leads to suboptimal designs. In this paper, a broadband array pattern synthesis approach to designing time-domain constant mainlobe response beamformer is proposed. By imposing constraints both on the mainlobe spatial response variation over frequency and on the sidelobes of the beamformer, several optimization criteria are presented and the corresponding convex second-order cone programming implementations are given. In this approach, no preliminary desired beampattern is required and the beam responses variation minimization is employed only in the mainlobe region and not in the sidelobe regions, which improves the beamformer mainlobe synthesis accuracy. Equally, one can obtain lower sidelobes at the same mainlobe synthesis accuracy. This approach is applicable to arrays with arbitrary geometry. Simulatio...Continue Reading

Citations

Apr 12, 2011·The Journal of the Acoustical Society of America·Peter Gerstoft, William S Hodgkiss
May 13, 2014·The Journal of the Acoustical Society of America·Mingsian R Bai, Ching-Cheng Chen
Aug 7, 2014·The Journal of the Acoustical Society of America·Yong WangYuKang Liu
Dec 2, 2008·Ultrasonics·Drake A Guenther, William F Walker
Feb 24, 2011·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Flávio P Ribeiro, Vítor H Nascimento
Sep 3, 2016·The Journal of the Acoustical Society of America·Yuxiang HuXiaojun Qiu
Jun 3, 2018·The Journal of the Acoustical Society of America·Gongping HuangJacob Benesty
Jun 4, 2020·The Journal of the Acoustical Society of America·Wenxia WangLinlin Mao
Aug 5, 2018·The Journal of the Acoustical Society of America·Gongping HuangJacob Benesty
Oct 3, 2020·The Journal of the Acoustical Society of America·Gongping HuangJacob Benesty

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

The Journal of the Acoustical Society of America
Kang-Sik KimMichael F Insana
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Yibin Zheng, Seth D Silverstein
The Journal of the Acoustical Society of America
Marco Crocco, A Trucco
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Karthik Ranganathan, William F Walker
© 2021 Meta ULC. All rights reserved