Dr. Takeshi Kamazaki Profile

Dr. Takeshi Kamazaki

at National Astronomical Observatory of Japan

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Author

Publications (6)

Proceedings Article | 16 August 2024 Presentation + Paper

A 10.24-GHz-wide digital spectrometer array system for LMT-FINER: system design and laboratory performance verification

Masato Hagimoto, Akio Taniguchi, Yoichi Tamura, Norika Okauchi, Hiroaki Kawamoto, Taku Nakajima, Takumi Hikosaka, Kenichi Harada, Toru Taniguchi, Takeshi Kamazaki, Takeshi Sakai, Kunihiko Tanaka, Ryohei Kawabe

Proceedings Volume 13102, 131020V (2024) https://doi.org/10.1117/12.3018296

KEYWORDS: Spectroscopy, Digital signal processing, Calibration, Frequency response

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Proceedings Article | 13 December 2020 Poster + Paper

Development of flexible and useful archive system storing observation data of various telescopes

Akira Yoshino, Koji Nakamura, Makoto Shizugami, Emi Ikeda, Kyoko Ashitagawa, George Kosugi, Kazufumi Torii, Shigeru Takahashi, Jun Maekawa, Takeshi Kamazaki

Proceedings Volume 11449, 114492P (2020) https://doi.org/10.1117/12.2561907

KEYWORDS: Telescopes, Data archive systems, Data storage, Observatories, Astronomy, Submillimeter telescopes

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Proceedings Article | 13 December 2020 Poster + Paper

ASTE BAND10 commissioning and science verification

Takeshi Kamazaki, Shun Ishii, Andrea Silva, Shinichiro Asayama

Proceedings Volume 11453, 114533X (2020) https://doi.org/10.1117/12.2561968

KEYWORDS: Receivers, Astronomy, Radio telescopes, Submillimeter telescopes, Prototyping, Computing systems, Telescopes

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Proceedings Article | 13 December 2020 Poster + Paper

Upgrade of an ALMA Band 10 prototype receiver for ASTE radio telescope

Tetsuya Ito, Yasunori Fujii, Motoko Inata, Takeshi Kamazaki, Seiichi Sakamoto, Shin'ichiro Asayama

Proceedings Volume 11453, 114533Q (2020) https://doi.org/10.1117/12.2561076

KEYWORDS: Receivers, Heterodyning, Prototyping, Radio telescopes, Submillimeter telescopes, Double sideband modulation, Assembly equipment, Oscillators, Temperature metrology

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Proceedings Article | 9 July 2018 Paper

The new heterodyne receiver system for the ASTE radio telescope: three-cartridge cryostat with two cartridge-type superconducting receivers

Tetsuya Ito, Takeshi Kamazaki, Yasunori Fujii, Natsuko Izumi, Motoko Inata, Kazunori Uemizu, Naohisa Satou, Daisuke Iono, Takeshi Okuda, Shin'ichiro Asayama

Proceedings Volume 10708, 107082V (2018) https://doi.org/10.1117/12.2313087

KEYWORDS: Receivers, Polarization, Heterodyning, Telescopes, Superconductors, Temperature metrology, Single sideband modulation, Radio telescopes, Astronomy, Clouds

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Proceedings Article | 24 September 2012 Paper

Performance highlights of the ALMA correlators

Alain Baudry, Richard Lacasse, Ray Escoffier, John Webber, Joseph Greenberg, Laurence Platt, Robert Treacy, Alejandro Saez, Philippe Cais, Giovanni Comoretto, Benjamin Quertier, Sachiko Okumura, Takeshi Kamazaki, Yoshihiro Chikada, Manabu Watanabe, Takeshi Okuda, Yasutake Kurono, Satoru Iguchi

Proceedings Volume 8452, 845217 (2012) https://doi.org/10.1117/12.925700

KEYWORDS: Optical correlators, Antennas, Field programmable gate arrays, Spectral resolution, Fused deposition modeling, Astronomy, Time division multiplexing, Adaptive optics, Receivers, Polarization

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Showing 5 of 6 publications

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