The minimum spanning tree problem in the phase calibration for the spatial FFT interferometer

Hiroshi Takeuchi; Yukinori Akamine; Fumiyuki Fujii; Masaya Kuniyoshi; Taisei Suemitsu; Kentaro Gotoh; Saori Mizuki; Keiju Mizuno; Tomoya Suzuki; Kohji Fukuoka; Naoki Tanaka; Tsuneaki Daishido

The minimum spanning tree problem in the phase calibration for the spatial FFT interferometer

Hiroshi Takeuchi^*, Yukinori Akamine, Fumiyuki Fujii, Masaya Kuniyoshi, Taisei Suemitsu, Kentaro Gotoh, Saori Mizuki, Keiju Mizuno, Tomoya Suzuki, Kohji Fukuoka, Naoki Tanaka, Tsuneaki Daishido

^*この研究の対応する著者

研究成果: Article › 査読

3 被引用数 (Scopus)

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Achieving a Nyquist-rate direct-imaging observation using a spatial FFT interferometer, instrumental phase errors in transmission lines must be calibrated before the observation. We improved the phase-calibrating system in the Waseda FFT interferometer by increasing the number of simultaneous obtainable fringe baselines from 84 to 128, and using the algorithm of the minimum spanning tree problem in graph theory. As a result, the main-beam intensity of the interferometer became 1.6 times on average.

本文言語	English
ページ（範囲）	267-273
ページ数	7
ジャーナル	Publications of the Astronomical Society of Japan
巻	52
号	2
出版ステータス	Published - 2000

ASJC Scopus subject areas

天文学と天体物理学
宇宙惑星科学

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abstract = "Achieving a Nyquist-rate direct-imaging observation using a spatial FFT interferometer, instrumental phase errors in transmission lines must be calibrated before the observation. We improved the phase-calibrating system in the Waseda FFT interferometer by increasing the number of simultaneous obtainable fringe baselines from 84 to 128, and using the algorithm of the minimum spanning tree problem in graph theory. As a result, the main-beam intensity of the interferometer became 1.6 times on average.",

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T1 - The minimum spanning tree problem in the phase calibration for the spatial FFT interferometer

AU - Takeuchi, Hiroshi

AU - Akamine, Yukinori

AU - Fujii, Fumiyuki

AU - Kuniyoshi, Masaya

AU - Suemitsu, Taisei

AU - Gotoh, Kentaro

AU - Mizuki, Saori

AU - Mizuno, Keiju

AU - Suzuki, Tomoya

AU - Fukuoka, Kohji

AU - Tanaka, Naoki

AU - Daishido, Tsuneaki

PY - 2000

Y1 - 2000

N2 - Achieving a Nyquist-rate direct-imaging observation using a spatial FFT interferometer, instrumental phase errors in transmission lines must be calibrated before the observation. We improved the phase-calibrating system in the Waseda FFT interferometer by increasing the number of simultaneous obtainable fringe baselines from 84 to 128, and using the algorithm of the minimum spanning tree problem in graph theory. As a result, the main-beam intensity of the interferometer became 1.6 times on average.

AB - Achieving a Nyquist-rate direct-imaging observation using a spatial FFT interferometer, instrumental phase errors in transmission lines must be calibrated before the observation. We improved the phase-calibrating system in the Waseda FFT interferometer by increasing the number of simultaneous obtainable fringe baselines from 84 to 128, and using the algorithm of the minimum spanning tree problem in graph theory. As a result, the main-beam intensity of the interferometer became 1.6 times on average.

KW - Graph theory

KW - Instrumentation: interferometers

KW - Methods: data analysis

KW - Surveys

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SN - 0004-6264

VL - 52

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EP - 273

JO - Publication of the Astronomical Society of Japan

JF - Publication of the Astronomical Society of Japan

IS - 2

ER -

The minimum spanning tree problem in the phase calibration for the spatial FFT interferometer

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