Optics and Precision Engineering, Volume. 18, Issue 7, 1491(2010)

Radiometric calibration of off-axis three-mirror-anastigmat space camera with wide viewing field

REN Jian-wei1,*... LIU Ze-xun1,2, WAN Zhi1, LI Xian-sheng1 and REN Jian-yue1 |Show fewer author(s)
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • show less

    Off-axis Three-Mirror-Anastigmat(TMA)optical system is a most advanced optical system used in space cameras for earth observation presently. In this paper,the imaging mechanism of a off-axis TMA wide viewing field space camera is analyzed, and two kinds of calibration projects, sectional viewing field radiometric calibration and entire viewing field radiometric calibration using an especial hatch integrating sphere,are proposed according to the path and construction features of the off-axis TMA optical system.Then, Both the projects are used in the laboratory radiometric calibration for the different phase specimens of the off-axis TMA space camera. The calibration result indicates that both of the projects are feasible and can fully satisfy the requirements of laboratory radiometric calibration. The service conditions of the two projects are obtained by analyzing the relative merits of the projects. It is concluded that the calibration accuracies of two projects are 1.68% and 1.89%,respectively.

    Tools

    Get Citation

    Copy Citation Text

    REN Jian-wei, LIU Ze-xun, WAN Zhi, LI Xian-sheng, REN Jian-yue. Radiometric calibration of off-axis three-mirror-anastigmat space camera with wide viewing field[J]. Optics and Precision Engineering, 2010, 18(7): 1491

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Jun. 25, 2009

    Accepted: --

    Published Online: Dec. 7, 2010

    The Author Email: Jian-wei REN (Renjw@ciomp.ac.cn)

    DOI:

    CSTR:32186.14.

    Topics