Adaptive Capon beamforming for lensless electron cyclotron emission imaging with high spatial resolution-Reference-Cited by-同舟云学术

Adaptive Capon beamforming for lensless electron cyclotron emission imaging with high spatial resolution

Published:2022-10-01 Issue:10 Volume:93 Page:103531
ISSN:0034-6748
Container-title:Review of Scientific Instruments
language:en
Short-container-title:Review of Scientific Instruments

Author:

Idei H.¹^ORCID,Fukuyama M.²,Sakai S.²,Mishra K.³,Nishimura K.⁴,Ikezoe R.¹^ORCID,Onchi T.¹,Ido T.¹^ORCID,Hanada K.¹

Affiliation:

1. Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8560, Japan

2. Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan

3. Institute for Plasma Research, Gandhinagar 382428, India

4. Research Institute for Sustainable Humanosphere, Kyoto University, Uji 611-0011, Japan

Abstract

Electron cyclotron emission (ECE) imaging diagnostics incorporating a lensless approach have been developed for measurements involving active spatial selectivity and direction-of-arrival estimation. The Capon method for adaptive-array analysis was proposed to improve the spatial resolution of the two-dimensional ECE imaging technique. Broadband noise source emissions were used to simulate the ECE to verify the practical effectiveness of the Capon method in the ECE imaging. Multiple noise source emission positions were properly estimated with a high spatial resolution using the Capon method.

Funder

National Institute for Fusion Science

Japan Society for the Promotion of Science

Publisher

AIP Publishing

Subject

Instrumentation

Link

https://aip.scitation.org/doi/pdf/10.1063/5.0101632

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