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Design and Evaluation of 2-bit-Input Single-Flux-Quantum Autocorrelator System for Astronomical Data Analysis
http://hdl.handle.net/10131/00013623
http://hdl.handle.net/10131/00013623b960f219-fe32-4645-a7b1-a90bc2bdd7d7
名前 / ファイル | ライセンス | アクション |
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Shirakawa2021IEEE.pdf (564.2 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-03-01 | |||||
タイトル | ||||||
タイトル | Design and Evaluation of 2-bit-Input Single-Flux-Quantum Autocorrelator System for Astronomical Data Analysis | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Correlation, Correlators, Shift registers, Clocks, Analog-digital conversion, Mixers, Voltage measurementSingle-flux quantum, autocorrelator, superconducting integrated circuits | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Lisa, Shirakawa
× Lisa, Shirakawa× Yuki, Yamanashi× Nobuyuki, Yoshikawa |
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著者所属 | ||||||
Department of Electrical and Computer Engineering, Yokohama National University | ||||||
著者所属 | ||||||
Department of Electrical and Computer Engineering, Yokohama National University | ||||||
著者所属 | ||||||
Department of Electrical and Computer Engineering, Yokohama National University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | To improve the accuracy of astronomical data analysis, an increase in the number of output bits from the A/D converter is effective. We investigated a single-flux-quantum (SFQ) autocorrelator and an integrator that supports multiple-bit signal output from an SFQ A/D converter for astronomical data processing. The SFQ binary counter was used as the integrator that decimates the output from the SFQ autocorrelator for communication with equipment at room temperature. We designed the test circuits composed of 2-bit inputs, an autocorrelator, and an integrator that contains 5631 Josephson junctions using the 10 kA/cm^2 Nb process. We confirmed the correct operation of the test circuit with a normalized bias voltage margin of 102%–114% by the low-speed test. We obtained its correct high-speed operation up to a 55.1 GHz clock frequency. In terms of circuit design, scaling up the test circuit is easy. These results indicate the effectiveness of a high-precision and large-bandwidth radio astronomical observation using SFQ circuit technology. | |||||
書誌情報 |
IEEE Transactions on Applied Superconductivity 巻 31, 号 5, p. 1300604, 発行日 2021-01-22 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 10518223 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11946236 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1109/TASC.2021.3053919 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | IEEE | |||||
関係URI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1109/TASC.2021.3053919 | |||||
関連名称 | https://doi.org/10.1109/TASC.2021.3053919 |