Dr. Jian-Jun Chen Profile

Dr. Jian-Jun Chen

at National Astronomical Observatories CAS

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Author

Publications (5)

Proceedings Article | 6 July 2018 Paper

LAMOST staller parameters pipeline for medium resolution spectra

A-Li Luo, Jia-Jun Chen, Wen Hou, Fang Zuo, Bing Du, Yi-Han Song, Xiao Kong, Rui Wang, Yan Lu, Yong-Heng Zhao

Proceedings Volume 10707, 107072B (2018) https://doi.org/10.1117/12.2312433

KEYWORDS: Spectrographs, Optical fibers, Stars, Spectral resolution, Astronomy, Photometry, Telescopes

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Proceedings Article | 7 August 2014 Paper

Research on key problems for LAMOST optical fiber detection system

Mengxin Wang, Jianjun Chen, Ali Luo, Xiaoran Chen

Proceedings Volume 9151, 91514Q (2014) https://doi.org/10.1117/12.2052975

KEYWORDS: Optical fibers, Image processing, Telescopes, Control systems, CCD cameras, Data modeling, Image quality, Environmental sensing, Reflector telescopes, Spherical lenses

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Proceedings Article | 7 August 2014 Paper

Measure fiber position errors from spectra data for LAMOST

Jian-Jun Chen, Zhong-Rui Bai, A-Li Luo, Yong-Heng Zhao

Proceedings Volume 9149, 91491N (2014) https://doi.org/10.1117/12.2055460

KEYWORDS: Telescopes, Signal to noise ratio, Spectroscopy, Astronomy, Observatories, Data modeling, CCD cameras, Photography, Charge-coupled devices, Light

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Proceedings Article | 25 September 2012 Paper

A new calculation of LAMOST optical vignetting

Shuang Li, Ali Luo, Jianjun Chen, Genrong Liu, Georges Comte

Proceedings Volume 8449, 84491Q (2012) https://doi.org/10.1117/12.925990

KEYWORDS: Vignetting, Telescopes, Mirrors, Reflector telescopes, Astronomical imaging, Astronomy, Spherical lenses, Spectrographs, Spectroscopes, Statistical analysis

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Proceedings Article | 30 June 2006 Paper

Introducing hidden Markov models to LAMOST automatic data processing

Jianjun Chen

Proceedings Volume 6270, 627022 (2006) https://doi.org/10.1117/12.671503

KEYWORDS: Data processing, Statistical analysis, Data modeling, Stochastic processes, Statistical methods, Principal component analysis, Speech recognition, Systems modeling, Expectation maximization algorithms, Telescopes

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