Using NOC technology to improve photoelectric encoder system for LAMOST spectroscopes

Author

Han, Zhongyi ; Wang, Jianing ; Zeng, Yizhong ; Hu, Zhongwen

Author_Institution

Nat. Astron. Obs., Nanjing Inst. of Astron. Opt. & Technol., Nanjing, China

fYear

2011

fDate

25-28 Oct. 2011

Firstpage

64

Lastpage

66

Abstract

Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), consists of 16 spectroscopes which have lots of motors should be controlled. This paper mainly introduces how to use Network-on-chip (NOC) technology to improve the photoelectric encoder system of LAMOST spectrometer controller via Altera Corporation´s Qsys tool. Besides, a comparison of system performance in different pipeline stages was made. The realization of overall design follows a hierarchical interconnection idea, which significantly improves system performance, decreases Logic Elements (LEs) usage, and shortens design period compared with the previous SOPC-based approach.

Keywords

astronomical telescopes; network-on-chip; spectrometers; Altera Corporation Qsys tool; LAMOST spectrometer controller; LAMOST spectroscopes; LE usage; NOC technology; SOPC-based approach; hierarchical interconnection; large-sky area multiobject fiber spectroscopic telescope; logic elements; network-on-chip technology; photoelectric encoder system; pipeline stages; system-on-programmable chip; Lead; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC (ASICON), 2011 IEEE 9th International Conference on

Conference_Location

Xiamen

ISSN

2162-7541

Print_ISBN

978-1-61284-192-2

Electronic_ISBN

2162-7541

Type

conf

DOI

10.1109/ASICON.2011.6157123

Filename

6157123